SECURITY
      AGREEMENT

     

    THIS
      SECURITY AGREEMENT
      (this
“Agreement”), is
      entered into and made effective as of December 6, 2007, by and between
NEXUS
      NANO ELECTRONICS, INC.,
      a
      Nevada corporation with its principal place of business located at 109 North
      Post Oak Plane (the “Company”)
      and
CSI
      BUSINESS FINANCE, INC.,
      a Texas
      corporation (the “Secured
      Party”).

     

    RECITALS:

     

    WHEREAS,
      On
      April 30, 2007, a Promissory Note in the original principal amount of Four
      Hundred Two Thousand Six Hundred Eighty Dollars ($402,680) was issued by the
      Company to the Secured Party (the “Original
      Note”);
      and

     

    WHEREAS,
      the
      Original Note consolidated a note issued by the Company to the Holder on
      November 20, 2006 in the principal amount of One Hundred Thousand Dollars
      ($100,000) and a note issued on January 23, 2007 in the principal amount of
      Twenty-Five Thousand Dollars ($25,000), and included an additional funding
      amount of Two Hundred Seventy-Seven Thousand Six Hundred Eighty Dollars
      ($277,680); and

     

    WHEREAS,
      on
      simultaneously with the execution of this Agreement, the Company shall issue
      to
      the Secured Party a Secured Convertible Note (the “Note”) is in order to
      consolidate the Original Note plus accrued and unpaid interest to the date
      thereof totaling Forty-Two Thousand Two Hundred Eighty-One Dollars ($42,281)
      for
      a total amount of Four Hundred Forty-Four Thousand Nine Hundred Sixty-One
      Dollars ($444,961); and

     

    WHEREAS,
      as a
      material inducement for Secured Party to extinguish the Original Note in
      exchange for the Note, the Company hereby grants to the Secured Party a security
      interest in and to the pledged property identified on Exhibit
      A
      hereto
      (collectively referred to as the “Pledged
      Property”)
      until
      the satisfaction of the Obligations, as defined herein below.

     

    AGREEMENT:

     

    NOW,
      THEREFORE, in
      consideration of the promises and the mutual covenants herein contained, and
      for
      other good and valuable consideration, the adequacy and receipt of which are
      hereby acknowledged, the parties hereto hereby agree as follows:

     

    ARTICLE
      1.

     

    DEFINITIONS
      AND INTERPRETATIONS

     

    Section
      1.1. Recitals.
      

     

    The
      above
      recitals are true and correct and are incorporated herein, in their entirety,
      by
      this reference.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Section
      1.2. Interpretations.
      

     

    Nothing
      herein expressed or implied is intended or shall be construed to confer upon
      any
      person other than the Secured Party any right, remedy or claim under or by
      reason hereof.

     

    Section
      1.3. Obligations
      Secured.

     

    The
      obligations secured hereby are any and all obligations of the Company or any
      of
      its subsidiaries now existing or hereinafter incurred to the Secured Party,
      whether oral or written and whether arising before, on or after the date hereof
      including, without limitation, those obligations of the Company or any of its
      subsidiaries to the Secured Party under this Agreement and the Note, and any
      other amounts now or hereafter owed to the Secured Party by the Company or
      any
      of its subsidiaries thereunder or hereunder, including, without limitation,
      any
      promissory notes or other instruments evidencing debt subsequently issued by
      the
      Company or any of its subsidiaries to the Secured Party (collectively, the
      “Obligations”).

     

    ARTICLE
      2.

     

    PLEDGED
      PROPERTY, ADMINISTRATION OF COLLATERAL

    AND
      TERMINATION OF SECURITY INTEREST

     

    Section
      2.1. Pledged
      Property.

     

    (a) Company
      hereby pledges to the Secured Party, and creates in the Secured Party for its
      benefit, a security interest for such time until the Obligations are paid in
      full, in and to all of the property of the Company as set forth in Exhibit A
      attached
      hereto and the products thereof and the proceeds of all such items
      (collectively, the “Pledged
      Property”):

     

    (b) Simultaneously
      with the execution and delivery of this Agreement, the Company shall make,
      execute, acknowledge, file, record and deliver to the Secured Party any
      documents reasonably requested by the Secured Party to perfect its security
      interest in the Pledged Property. Simultaneously with the execution and delivery
      of this Agreement, the Company shall make, execute, acknowledge and deliver
      to
      the Secured Party such documents and instruments, including, without limitation,
      financing statements, certificates, affidavits and forms as may, in the Secured
      Party’s reasonable judgment, be necessary to effectuate, complete or perfect, or
      to continue and preserve, the security interest of the Secured Party in the
      Pledged Property, and the Secured Party shall hold such documents and
      instruments as secured party, subject to the terms and conditions contained
      herein.

     

    Section
      2.2. Rights;
      Interests; Etc.

     

    (a) So
      long
      as no Event of Default (as hereinafter defined) shall have occurred and be
      continuing:

     

    (i) the
      Company shall be entitled to exercise any and all rights pertaining to the
      Pledged Property or any part thereof for any purpose not inconsistent with
      the
      terms hereof; and

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    (ii) the
      Company shall be entitled to receive and retain any and all payments paid or
      made in respect of the Pledged Property.

     

    (b) Upon
      the
      occurrence and during the continuance of an Event of Default:

     

    (i) All
      rights of the Company to exercise the rights which it would otherwise be
      entitled to exercise pursuant to Section 2.2(a)(i) hereof and to
      receive payments which it would otherwise be authorized to receive and retain
      pursuant to Section 2.2(a)(ii) hereof shall be suspended, and all such
      rights shall thereupon become vested in the Secured Party who shall thereupon
      have the sole right to exercise such rights and to receive and hold as Pledged
      Property such payments; provided,
      however,
      that if
      the Secured Party shall become entitled and shall elect to exercise its right
      to
      realize on the Pledged Property pursuant to Article 5 hereof, then all cash
      sums received by the Secured Party, or held by Company for the benefit of the
      Secured Party and paid over pursuant to Section 2.2(b)(ii) hereof,
      shall be applied against any outstanding Obligations; and

     

    (ii) All
      interest, dividends, income and other payments and distributions which are
      received by the Company contrary to the provisions of
      Section 2.2(b)(i) hereof shall be received in trust for the benefit of
      the Secured Party, shall be segregated from other property of the Company and
      shall be forthwith paid over to the Secured Party; or 

     

    (iii) The
      Secured Party in its sole discretion shall be authorized to sell any or all
      of
      the Pledged Property at public or private sale in order to recoup all of the
      outstanding principal plus accrued interest owed pursuant to the Notes as
      described herein.

     

    (c) An
      “Event
      of Default”
shall
      be deemed to have occurred under this Agreement upon an Event of Default under
      the Note or under any other agreement by and between the Company and the Secured
      Party or any of the Company’s subsidiaries and the Secured Party. 

     

    ARTICLE
      3.

     

    ATTORNEY-IN-FACT;
      PERFORMANCE

     

    Section
      3.1. Secured
      Party Appointed Attorney-In-Fact.

     

    Upon
      the
      occurrence of an Event of Default, the Company hereby appoints the Secured
      Party
      as its attorney-in-fact, with full authority in the place and stead of the
      Company and in the name of the Company or otherwise, from time to time in the
      Secured Party’s discretion to take any action and to execute any instrument
      which the Secured Party may reasonably deem necessary to accomplish the purposes
      of this Agreement, including, without limitation, to receive and collect all
      instruments made payable to the Company representing any payments in respect
      of
      the Pledged Property or any part thereof and to give full discharge for the
      same. The Secured Party may demand, collect, receipt for, settle, compromise,
      adjust, sue for, foreclose, or realize on the Pledged Property as and when
      the
      Secured Party may determine. To facilitate collection, the Secured Party may
      notify account debtors and obligors on any Pledged Property to make payments
      directly to the Secured Party.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Section
      3.2. Secured
      Party May Perform.

     

    If
      the
      Company fails to perform any agreement contained herein, the Secured Party,
      at
      its option, may itself perform, or cause performance of, such agreement, and
      the
      expenses of the Secured Party incurred in connection therewith shall be included
      in the Obligations secured hereby and payable by the Company under
      Section 8.3.

     

    ARTICLE
      4.

     

    REPRESENTATIONS
      AND WARRANTIES

     

    Section
      4.1. Authorization;
      Enforceability.

     

    Each
      of
      the parties hereto represents and warrants that it has taken all action
      necessary to authorize the execution, delivery and performance of this Agreement
      and the transactions contemplated hereby; and upon execution and delivery,
      this
      Agreement shall constitute a valid and binding obligation of the respective
      party, subject to applicable bankruptcy, insolvency, reorganization, moratorium
      and similar laws affecting creditors’ rights or by the principles governing the
      availability of equitable remedies.

     

    Section
      4.2. Ownership
      of Pledged Property.

     

    The
      Company warrants and represents that it is the legal and beneficial owner of
      the
      Pledged Property free and clear of any lien, security interest, option or other
      charge or encumbrance.

     

    ARTICLE
      5.

     

    DEFAULT;
      REMEDIES; SUBSTITUTE COLLATERAL

     

    Section
      5.1. Default
      and Remedies.

     

    (a) If
      an
      Event of Default occurs, then in each such case the Secured Party may declare
      the Obligations to be due and payable immediately, by a notice in writing to
      the
      Company, and upon any such declaration, the Obligations shall become immediately
      due and payable. 

     

    (b) Upon
      the
      occurrence of an Event of Default, the Secured Party shall: (i) be entitled
      to receive all distributions with respect to the Pledged Property, (ii) to
      cause the Pledged Property to be transferred into the name of the Secured Party
      or its nominee, (iii) to dispose of the Pledged Property and (iv) to
      realize upon any and all rights in the Pledged Property then held by the Secured
      Party.

     

    Section
      5.2. Method
      of Realizing Upon the Pledged Property: Other Remedies.

     

    Upon
      the
      occurrence of an Event of Default, in addition to any rights and remedies
      available at law or in equity, the following provisions shall govern the Secured
      Party’s right to realize upon the Pledged Property:

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    (a) Any
      item
      of the Pledged Property may be sold for cash or other value in any number of
      lots at brokers board, public auction or private sale and may be sold without
      demand, advertisement or notice (except that the Secured Party shall give the
      Company ten (10) trading days’ prior written notice of the time and
      place or of the time after which a private sale may be made (the “Sale
      Notice”)),
      which notice period is hereby agreed to be commercially reasonable. At any
      sale
      or sales of the Pledged Property, the Company may bid for and purchase the
      whole
      or any part of the Pledged Property and, upon compliance with the terms of
      such
      sale, may hold, exploit and dispose of the same without further accountability
      to the Secured Party. The Company will execute and deliver, or cause to be
      executed and delivered, such instruments, documents, assignments, waivers,
      certificates, and affidavits and supply or cause to be supplied such further
      information and take such further action as the Secured Party reasonably shall
      require in connection with any such sale.

     

    (b) Any
      cash
      being held by the Secured Party as Pledged Property and all cash proceeds
      received by the Secured Party in respect of, sale of, collection from, or other
      realization upon all or any part of the Pledged Property shall be applied as
      follows:

     

    (i) to
      the
      payment of all amounts due the Secured Party for the expenses reimbursable
      to it
      hereunder or owed to it pursuant to Section 8.3 hereof;

     

    (ii) to
      the
      payment of the Obligations then due and unpaid.

     

    (iii) the
      balance, if any, to the person or persons entitled thereto, including, without
      limitation, the Company.

     

    (c) In
      addition to all of the rights and remedies which the Secured Party may have
      pursuant to this Agreement, the Secured Party shall have all of the rights
      and
      remedies provided by law, including, without limitation, those under the Uniform
      Commercial Code.

     

    (i) If
      the
      Company fails to pay such amounts due upon the occurrence of an Event of Default
      which is continuing, then the Secured Party may institute a judicial proceeding
      for the collection of the sums so due and unpaid, may prosecute such proceeding
      to judgment or final decree and may enforce the same against the Company and
      collect the monies adjudged or decreed to be payable in the manner provided
      by
      law out of the property of Company, wherever situated.

     

    (ii) The
      Company agrees that it shall be liable for any reasonable fees, expenses and
      costs incurred by the Secured Party in connection with enforcement, collection
      and preservation of the Pledged Property, including, without limitation,
      reasonable legal fees and expenses, and such amounts shall be deemed included
      as
      Obligations secured hereby and payable as set forth in Section 8.3
      hereof.

     

    Section
      5.3. Proofs
      of Claim.

     

    In
      case
      of the pendency of any receivership, insolvency, liquidation, bankruptcy,
      reorganization, arrangement, adjustment, composition or other judicial
      proceeding relating to the Company or the property of the Company or of such
      other obligor or its creditors, the Secured Party (irrespective of whether
      the
      Obligations shall then be due and payable as therein expressed or by declaration
      or otherwise and irrespective of whether the Secured Party shall have made
      any
      demand on the Company for the payment of the Obligations), subject to the rights
      of previous security holders set forth on Schedule 4.2, shall be entitled and
      empowered, by intervention in such proceeding or otherwise:

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    (i) to
      file
      and prove a claim for the whole amount of the Obligations and to file such
      other
      papers or documents as may be necessary or advisable in order to have the claims
      of the Secured Party (including any claim for the reasonable legal fees and
      expenses and other expenses paid or incurred by the Secured Party permitted
      hereunder and of the Secured Party allowed in such judicial proceeding),
      and

     

    (ii) to
      collect and receive any monies or other property payable or deliverable on
      any
      such claims and to distribute the same; and any custodian, receiver, assignee,
      trustee, liquidator, sequestrator or other similar official in any such judicial
      proceeding is hereby authorized by the Secured Party to make such payments
      to
      the Secured Party and, in the event that the Secured Party shall consent to
      the
      making of such payments directed to the Secured Party, to pay to the Secured
      Party any amounts for expenses due it hereunder.

     

    Section
      5.4. Duties
      Regarding Pledged Property.

     

    The
      Secured Party shall have no duty as to the collection or protection of the
      Pledged Property or any income thereon or as to the preservation of any rights
      pertaining thereto, beyond the safe custody and reasonable care of any of the
      Pledged Property actually in the Secured Party’s possession.

     

    ARTICLE
      6.

     

    AFFIRMATIVE
      COVENANTS

     

    The
      Company covenants and agrees that, from the date hereof and until the
      Obligations have been fully paid and satisfied, unless the Secured Party shall
      consent otherwise in writing (as provided in Section 8.4
      hereof):

     

    Section
      6.1. Existence,
      Properties, Etc.

     

    (a) The
      Company shall do, or cause to be done, all things, or proceed with due diligence
      with any actions or courses of action, that may be reasonably necessary
      (i) to maintain Company’s due organization, valid existence and good
      standing under the laws of its state of incorporation, and (ii) to preserve
      and keep in full force and effect all qualifications, licenses and registrations
      in those jurisdictions in which the failure to do so could have a Material
      Adverse Effect (as defined below); and (b) the Company shall not do, or
      cause to be done, any act impairing the Company’s corporate power or authority
      (i) to carry on the Company’s business as now conducted, and (ii) to
      execute or deliver this Agreement or any other document delivered in connection
      herewith, including, without limitation, any UCC-1 Financing Statements required
      by the Secured Party (which other loan instruments collectively shall be
      referred to as the “Loan
      Instruments”)
      to
      which it is or will be a party, or perform any of its obligations hereunder
      or
      thereunder. For purpose of this Agreement, the term “Material
      Adverse Effect”
shall
      mean any material and adverse affect as determined by Secured Party in its
      sole
      discretion, whether individually or in the aggregate, upon (a) the
      Company’s assets, business, operations, properties or condition, financial or
      otherwise; (b) the Company’s to make payment as and when due of all or any
      part of the Obligations; or (c) the Pledged Property.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Section
      6.2. Financial
      Statements and Reports.

     

    The
      Company shall furnish to the Secured Party within a reasonable time such
      financial data as the Secured Party may reasonably request, including, without
      limitation, the following:

     

    (a) The
      balance sheet of the Company as of the close of each fiscal year, the statement
      of earnings and retained earnings of the Company as of the close of such fiscal
      year, and statement of cash flows for the Company for such fiscal year, all
      in
      reasonable detail, prepared in accordance with generally accepted accounting
      principles consistently applied, certified by the chief executive and chief
      financial officers of the Company as being true and correct and accompanied
      by a
      certificate of the chief executive and chief financial officers of the Company,
      stating that the Company has kept, observed, performed and fulfilled each
      covenant, term and condition of this Agreement during such fiscal year and
      that
      no Event of Default hereunder has occurred and is continuing, or if an Event
      of
      Default has occurred and is continuing, specifying the nature of same, the
      period of existence of same and the action the Company proposes to take in
      connection therewith;

     

    (b) A
      balance
      sheet of the Company as of the close of each month, and statement of earnings
      and retained earnings of the Company as of the close of such month, all in
      reasonable detail, certified by the chief executive and chief financial officers
      of the Company as being true and correct; and

     

    (c) Copies
      of
      all accountants' reports and accompanying financial reports submitted to the
      Company by independent accountants in connection with each annual examination
      of
      the Company.

     

    Section
      6.3. Accounts
      and Reports.

     

    The
      Company shall maintain a standard system of accounting in accordance with
      generally accepted accounting principles consistently applied and provide,
      at
      its sole expense, to the Secured Party the following:

     

    (a) as
      soon
      as available, a copy of any notice or other communication alleging any
      nonpayment or other material breach or default, or any foreclosure or other
      action respecting any material portion of its assets and properties, received
      respecting any of the indebtedness of the Company in excess of Fifty Thousand
      Dollars ($50,000) (other than the Obligations), or any demand or other request
      for payment under any guaranty, assumption, purchase agreement or similar
      agreement or arrangement respecting the indebtedness or obligations of others
      in
      excess of Fifty Thousand Dollars ($50,000), including any received from any
      person acting on behalf of the Secured Party or beneficiary thereof;
      and

     

    (b) within
      fifteen (15) days after the making of each submission or filing, a copy of
      any report, financial statement, notice or other document, whether periodic
      or
      otherwise, submitted to the shareholders of the Company, or submitted to or
      filed by the Company with any governmental authority involving or affecting
      (i)
      the Company that could have a Material Adverse Effect; (ii) the
      Obligations; (iii) any part of the Pledged Property; or (iv) any of
      the transactions contemplated by the Note or any subsequent financial
      arrangement by and between the Company and the Secured Party.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Section
      6.4. Maintenance
      of Books and Records; Inspection.

     

    The
      Company shall maintain its books, accounts and records in accordance with
      generally accepted accounting principles consistently applied, and permit the
      Secured Party, its officers and employees and any professionals designated
      by
      the Secured Party in writing, at any time to visit and inspect any of its
      properties (including but not limited to the collateral security described
      in
      the Loan Instruments), corporate books and financial records, and to discuss
      its
      accounts, affairs and finances with any employee, officer or director
      thereof.

     

    Section
      6.5. Maintenance
      and Insurance.

     

    (a) The
      Company shall maintain or cause to be maintained, at its own expense, all of
      its
      assets and properties in good working order and condition, making all necessary
      repairs thereto and renewals and replacements thereof.

     

    (b) The
      Company shall maintain or cause to be maintained, at its own expense, insurance
      in form, substance and amounts (including deductibles), which the Company deems
      reasonably necessary to the Company’s business, (i) adequate to insure all
      assets and properties of the Company, which assets and properties are of a
      character usually insured by persons engaged in the same or similar business
      against loss or damage resulting from fire or other risks included in an
      extended coverage policy; (ii) against public liability and other tort
      claims that may be incurred by the Company; (iii) as may be required by
      applicable law and (iv) as may be reasonably requested by Secured Party,
      all with adequate, financially sound and reputable insurers.

     

    Section
      6.6. Contracts
      and Other Collateral.

     

    The
      Company shall perform all of its obligations under or with respect to each
      instrument, receivable, contract and other intangible included in the Pledged
      Property to which the Company is now or hereafter will be party on a timely
      basis and in the manner therein required, including, without limitation, this
      Agreement.

     

    Section
      6.7. Defense
      of Collateral, Etc.

     

    The
      Company shall defend and enforce its right, title and interest in and to any
      part of: (a) the Pledged Property; and (b) if not included within the
      Pledged Property, those assets and properties whose loss could have a Material
      Adverse Effect, the Company shall defend the Secured Party’s right, title and
      interest in and to each and every part of the Pledged Property, each against
      all
      manner of claims and demands on a timely basis to the full extent permitted
      by
      applicable law.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Section
      6.8. Payment
      of Debts, Taxes, Etc.

     

    The
      Company shall pay, or cause to be paid, all of its indebtedness and other
      liabilities and perform, or cause to be performed, all of its obligations in
      accordance with the respective terms thereof, and pay and discharge, or cause
      to
      be paid or discharged, all taxes, assessments and other governmental charges
      and
      levies imposed upon it, upon any of its assets and properties on or before
      the
      last day on which the same may be paid without penalty, as well as pay all
      other
      lawful claims (whether for services, labor, materials, supplies or
      otherwise) as and when due.

     

    Section
      6.9. Taxes
      and Assessments; Tax Indemnity.

     

    The
      Company shall (a) file all tax returns and appropriate schedules thereto
      that are required to be filed under applicable law, prior to the date of
      delinquency, (b) pay and discharge all taxes, assessments and governmental
      charges or levies imposed upon the Company, upon its income and profits or
      upon
      any properties belonging to it, prior to the date on which penalties attach
      thereto, and (c) pay all taxes, assessments and governmental charges or
      levies that, if unpaid, might become a lien or charge upon any of its
      properties; provided,
      however,
      that
      the Company in good faith may contest any such tax, assessment, governmental
      charge or levy described in the foregoing clauses (b) and (c) so long as
      appropriate reserves are maintained with respect thereto. 

     

    Section
      6.10. Compliance
      with Law and Other Agreements.
      

     

    The
      Company shall maintain its business operations and property owned or used in
      connection therewith in compliance with (a) all applicable federal, state
      and local laws, regulations and ordinances governing such business operations
      and the use and ownership of such property, and (b) all agreements,
      licenses, franchises, indentures and mortgages to which the Company is a party
      or by which the Company or any of its properties is bound. Without limiting
      the
      foregoing, the Company shall pay all of its indebtedness promptly in accordance
      with the terms thereof.

     

    Section
      6.11. Notice
      of Default.
      

     

    The
      Company shall give written notice to the Secured Party of the occurrence of
      any
      default or Event of Default under this Agreement, the Note or any other Loan
      Instrument or any other agreement (with the Secured Party or otherwise) of
      Company for the payment of money, promptly upon the occurrence
      thereof.

     

    Section
      6.12. Notice
      of Litigation.

     

    The
      Company shall give notice, in writing, to the Secured Party of (a) any
      actions, suits or proceedings wherein the amount at issue is in excess of Fifty
      Thousand Dollars ($50,000), instituted by any persons against the Company,
      or
      affecting any of the assets of the Company, and (b) any dispute, not
      resolved within fifteen (15) days of the commencement thereof, between the
      Company on the one hand and any governmental or regulatory body on the other
      hand, which might reasonably be expected to have a Material Adverse Effect
      on
      the business operations or financial condition of the Company.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    ARTICLE
      7.

     

    NEGATIVE
      COVENANTS

     

    The
      Company covenants and agrees that, from the date hereof until the Obligations
      have been fully paid and satisfied, the Company shall not, unless with the
      Secured Party or unless the Secured Party shall consent otherwise in
      writing:

     

    Section
      7.1. Indebtedness.

     

    The
      Company shall not directly or indirectly permit, create, incur, assume, permit
      to exist, increase, renew or extend on or after the date hereof any indebtedness
      on its part in excess of Fifty Thousand Dollars ($50,000), including
      commitments, contingencies and credit availabilities, or apply for or offer
      or
      agree to do any of the foregoing.

     

    Section
      7.2. Liens
      and Encumbrances.

     

    The
      Company shall not directly or indirectly make, create, incur, assume or permit
      to exist any assignment, transfer, pledge, mortgage, security interest or other
      lien or encumbrance of any nature in, to or against any part of the Pledged
      Property or of the Company’s capital stock, or offer or agree to do so, or own
      or acquire or agree to acquire any asset or property of any character subject
      to
      any of the foregoing encumbrances (including any conditional sale contract
      or
      other title retention agreement), or assign, pledge or in any way transfer
      or
      encumber its right to receive any income or other distribution or proceeds
      from
      any part of the Pledged Property or the Company’s capital stock; or enter into
      any sale-leaseback financing respecting any part of the Pledged Property as
      lessee, or cause or assist the inception or continuation of any of the
      foregoing.

     

    Section
      7.3. Certificate
      of Incorporation, By-Laws, Mergers, Consolidations, Acquisitions and
      Sales.

     

    Without
      the prior express written
      consent
      of the Secured Party, the
      Company shall not: (a) amend its Articles of Incorporation (as amended) or
      By-Laws; (b) issue or sell its stock, stock options, bonds, notes or other
      corporate securities or obligations; (c) be a party to any merger, consolidation
      or corporate reorganization, (d) purchase or otherwise acquire all or
      substantially all of the assets or stock of, or any partnership or joint venture
      interest in, any other person, firm or entity, (e) sell, transfer, convey,
      grant a security interest in or lease all or any substantial part of its
      assets
      nor
      (f) create any subsidiaries nor convey any of its assets to any
      subsidiary.

     

    Section
      7.4. Management,
      Ownership.

     

    The
      Company shall not materially change its ownership, executive staff or management
      without the prior written consent of the Secured Party. The ownership, executive
      staff and management of the Company are material factors in the Secured Party's
      willingness to institute and maintain a lending relationship with the
      Company.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Section
      7.5. Dividends,
      Etc.

     

    The
      Company shall not declare or pay any dividend of any kind, in cash or in
      property, on any class of its capital stock, nor purchase, redeem, retire or
      otherwise acquire for value any shares of such stock, nor make any distribution
      of any kind in respect thereof, nor make any return of capital to shareholders,
      nor make any payments in respect of any pension, profit sharing, retirement,
      stock option, stock bonus, incentive compensation or similar plan (except as
      required or permitted hereunder), without the prior written consent of the
      Secured Party.

     

    Section
      7.6. Guaranties;
      Loans.

     

    The
      Company shall not guarantee nor be liable in any manner, whether directly or
      indirectly, or become contingently liable after the date of this Agreement
      in
      connection with the obligations or indebtedness of any person or persons, except
      for (i) the indebtedness currently secured by the liens identified on the
      Pledged Property identified on Exhibit
      A
      or
Schedule
      4.2
      hereto
      and (ii) the endorsement of negotiable instruments payable to the Company for
      deposit or collection in the ordinary course of business. The Company shall
      not
      make any loan, advance or extension of credit to any person other than in the
      normal course of its business.

     

    Section
      7.7. Debt.

     

    The
      Company shall not create, incur, assume or suffer to exist any additional
      indebtedness of any description whatsoever in an aggregate amount in excess
      of
      Twenty-Five Thousand Dollars ($25,000) (excluding any indebtedness of the
      Company to the Secured Party, trade accounts payable and accrued expenses
      incurred in the ordinary course of business and the endorsement of negotiable
      instruments payable to the Company, respectively for deposit or collection
      in
      the ordinary course of business).

     

    Section
      7.8. Conduct
      of Business.

     

    The
      Company will continue to engage, in an efficient and economical manner, in
      a
      business of the same general type as conducted by it on the date of this
      Agreement.

     

    Section
      7.9. Places
      of Business.

     

    The
      Company shall not change the location of its chief place of business, chief
      executive office or any place of business disclosed to the Secured Party or
      move
      any of the Pledged Property from its current location without thirty (30) days'
      prior written notice to the Secured Party in each instance. 

     

    ARTICLE
      8.

     

    MISCELLANEOUS

     

    Section
      8.1. Notices.

     

    Any
      notices, consents, waivers or other communications required or permitted to
      be
      given under the terms hereof must be in writing and will be deemed to have
      been
      delivered: (a) upon receipt, when delivered personally; (b) upon receipt,
      when sent by facsimile (provided confirmation of transmission is mechanically
      or
      electronically generated and kept on file by the sending Party); or (c) upon
      receipt after deposit with a nationally recognized overnight delivery service,
      in each case properly addressed to the Party to receive the same. The addresses
      and facsimile numbers for such communications shall be:

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    
      	
              If
                to the Company:

            	
              Nexus
                Nano Electronics, Inc.

            
	 	
              109
                North Post Oak Lane, Suite 422

            
	 	
              Houston,
                Texas 77024

            
	 	
              Attention:

            	
              W.
                Chris Mathers, CFO

            
	 	
              Telephone:

            	
              (713)
                621-2737

            
	 	
              Facsimile:

            	
              (713)
                893-6654

            
	 	 	 
	
              With
                a copy to:

            	
              Kirkpatrick
                & Lockhart Preston Gates Ellis LLP

            
	 	
              Wachovia
                Financial Center

            
	 	
              200
                South Biscayne Boulevard, Suite 2000

            
	 	
              Miami,
                Florida 33131

            
	 	
              Attention:

            	
              Clayton
                E. Parker, Esq.

            
	 	
              Telephone:

            	
              (305)
                539-3300

            
	 	 	 
	
              If
                to the Secured Party:

            	
              CSI
                Business Finance, Inc.

            
	 	
              109
                North Post Oak Lane, Suite 422

            
	 	
              Houston,
                Texas 77024

            
	 	
              Attention:

            	
              Timothy
                J. Connolly, CEO

            
	 	
              Telephone:

            	
              (713)
                621-2737

            
	 	
              Facsimile:

            	
              (713)
                893-6654

            


    

    


    or
      at
      such other address and/or facsimile number and/or to the attention of such
      other
      person as the recipient party has specified by written notice given to each
      other party three (3) trading days prior to the effectiveness of such
      change. Written confirmation of receipt (a) given by the recipient of such
      notice, consent, waiver or other communication, (b) mechanically or
      electronically generated by the sender’s facsimile machine containing the time,
      date, recipient facsimile number and an image of the first page of such
      transmission or (c) provided by a nationally recognized overnight delivery
      service, shall be evidence of personal service, receipt by facsimile or receipt
      from a nationally recognized overnight delivery service in accordance with
      clause (a), (b) or (c) above, respectively.

     

    Section
      8.2. Severability.

     

    If
      any
      provision of this Agreement shall be held invalid or unenforceable, such
      invalidity or unenforceability shall attach only to such provision and shall
      not
      in any manner affect or render invalid or unenforceable any other severable
      provision of this Agreement, and this Agreement shall be carried out as if
      any
      such invalid or unenforceable provision were not contained herein.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Section
      8.3. Expenses.

     

    Upon
      an
      Event of Default, the Company will pay to the Secured Party the amount of any
      and all reasonable expenses, including the reasonable fees and expenses of
      its
      counsel, which the Secured Party may incur in connection with: (i) the
      custody or preservation of, or the sale, collection from, or other realization
      upon, any of the Pledged Property; (ii) the exercise or enforcement of any
      of the rights of the Secured Party hereunder or (iii) the failure by the
      Company to perform or observe any of the provisions hereof.

     

    Section
      8.4. Waivers,
      Amendments, Etc.

     

    The
      Secured Party’s delay or failure at any time or times hereafter to require
      strict performance by Company of any undertakings, agreements or covenants
      shall
      not waiver, affect, or diminish any right of the Secured Party under this
      Agreement to demand strict compliance and performance herewith. Any waiver
      by
      the Secured Party of any Event of Default shall not waive or affect any other
      Event of Default, whether such Event of Default is prior or subsequent thereto
      and whether of the same or a different type. None of the undertakings,
      agreements and covenants of the Company contained in this Agreement, and no
      Event of Default, shall be deemed to have been waived by the Secured Party,
      nor
      may this Agreement be amended, changed or modified, unless such waiver,
      amendment, change or modification is evidenced by an instrument in writing
      specifying such waiver, amendment, change or modification and signed by the
      Secured Party.

     

    Section
      8.5. Continuing
      Security Interest.

     

    This
      Agreement shall create a continuing security interest in the Pledged Property
      and shall: (i) remain in full force and effect until payment in full of the
      Obligations; and (ii) be binding upon the Company and its successors and
      heirs and (iii) inure to the benefit of the Secured Party and its
      successors and assigns. Upon the payment or satisfaction in full of the
      Obligations, the Company shall be entitled to the return, at its expense, of
      such of the Pledged Property as shall not have been sold in accordance with
      Section 5.2 hereof or otherwise applied pursuant to the terms
      hereof.

     

    Section
      8.6. Independent
      Representation.

     

    Each
      party hereto acknowledges and agrees that it has received or has had the
      opportunity to receive independent legal counsel of its own choice and that
      it
      has been sufficiently apprised of its rights and responsibilities with regard
      to
      the substance of this Agreement.

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    Section
      8.7. Applicable
      Law: Jurisdiction.

     

    The
      interpretation and construction of this Agreement, and all matters relating
      hereto, shall be governed by the laws of the State of Texas without giving
      effect to the principles of conflicts of laws thereof. Each of the parties
      hereto consents to the jurisdiction of the federal and state courts of the
      State
      of Texas in any such action or proceeding and waives any objection to venue
      laid
      therein. 

     

    Section
      8.8. Waiver
      of Jury Trial.

     

    AS
      A FURTHER INDUCEMENT FOR THE SECURED PARTY TO ENTER INTO THIS AGREEMENT AND
      TO
      MAKE CERTAIN FINANCIAL ACCOMMODATIONS TO THE COMPANY IN THE NOTE, THE COMPANY
      HEREBY WAIVES ANY RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING RELATED IN
      ANY
      WAY TO THIS AGREEMENT AND/OR ANY AND ALL OTHER DOCUMENTS RELATED TO THIS
      TRANSACTION. 

     

    Section
      8.9. Entire
      Agreement.

     

    This
      Agreement constitutes the entire agreement among the parties and supersedes
      any
      prior agreement or understanding among them with respect to the subject matter
      hereof.

     

    Section
      8.9.1. Opportunity
      to Hire Counsel; Role of Kirkpatrick & Lockhart Preston Gates Ellis LLP. The
      Secured Party acknowledges
      that they have been advised and have been given an opportunity to hire counsel
      with respect to this Agreement and the transactions contemplated hereby. The
      Secured Party further acknowledges that the law firm of Kirkpatrick &
Lockhart Nicholson Graham LLP has solely represented the Company in connection
      with this Agreement and the transactions contemplated hereby and no other
      person.

    


    


    [REMAINDER
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    IN
      WITNESS WHEREOF, the
      parties hereto have executed this Security Agreement as of the date first above
      written.

     

    


    
      	 	
              COMPANY:

            
	 	 
	 	
              NEXUS
                NANO ELECTRONICS, INC.

            
	 	 	 	 
	 	
              By:

            	
              /s/
                W. Chris Mathers  

            	 
	 	
              Name:  
                W.
                Chris Mathers 

            	 
	 	
              Title:   
                 Chief
                Financial Officer 

            	 
	 	 	 	 
	 	 	 	 
	 	
              SECURED
                PARTY:

            
	 	 
	 	
              CSI
                BUSINESS FINANCE, INC.

            
	 	 	 	 
	 	
              By:

            	
              /s/
                Timothy J. Connolly 

            	 
	 	
              Name:  
                Timothy
                J. Connolly

            	 
	 	
              Title:    
                Chief
                Executive Officer

            	 


    

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

     

    EXHIBIT
      A

    DEFINITION
      OF PLEDGED PROPERTY

     

    For
      the
      purpose of securing prompt and complete payment and performance by the Company
      of all of the Obligations, the Company unconditionally and irrevocably hereby
      grants to the Secured Party a continuing security interest in and to, and lien
      upon, the following Pledged Property of the Company:

     

    (a) all
      goods
      of the Company, including, without limitation, machinery, equipment, furniture,
      furnishings, fixtures, signs, lights, tools, parts, supplies and motor vehicles
      of every kind and description, now or hereafter owned by the Company or in
      which
      the Company may have or may hereafter acquire any interest, and all
      replacements, additions, accessions, substitutions and proceeds thereof, arising
      from the sale or disposition thereof, and where applicable, the proceeds of
      insurance and of any tort claims involving any of the foregoing;

     

    (b) all
      inventory of the Company, including, but not limited to, all goods, wares,
      merchandise, parts, supplies, finished products, other tangible personal
      property, including such inventory as is temporarily out of Company’s custody or
      possession and including any returns upon any accounts or other proceeds,
      including insurance proceeds, resulting from the sale or disposition of any
      of
      the foregoing;

     

    (c) all
      contract rights and general intangibles of the Company, including, without
      limitation, goodwill, trademarks, trade styles, trade names, leasehold
      interests, partnership or joint venture interests, patents and patent
      applications, copyrights, deposit accounts whether now owned or hereafter
      created" including;

     

    (d) all
      documents, warehouse receipts, instruments and chattel paper of the Company
      whether now owned or hereafter created;

     

    (e) all
      accounts and other receivables, instruments or other forms of obligations and
      rights to payment of the Company (herein collectively referred to as
“Accounts”),
      together with the proceeds thereof, all goods represented by such Accounts
      and
      all such goods that may be returned by the Company’s customers, and all proceeds
      of any insurance thereon, and all guarantees, securities and liens which the
      Company may hold for the payment of any such Accounts including, without
      limitation, all rights of stoppage in transit, replevin and reclamation and
      as
      an unpaid vendor and/or lienor, all of which the Company represents and warrants
      will be bona fide and existing obligations of its respective customers, arising
      out of the sale of goods by the Company in the ordinary course of
      business;

     

    (f) to
      the
      extent assignable, all of the Company’s rights under all present and future
      authorizations, permits, licenses and franchises issued or granted in connection
      with the operations of any of its facilities;

     

    (g) all
      equity interests, securities or other instruments in other companies, including,
      without limitation, any subsidiaries, investments or other entities (whether
      or
      not controlled); and

     

    (h) all
      products and proceeds (including, without limitation, insurance proceeds) from
      the above-described Pledged Property.