Document:

Exhibit 4.1

 SECURED PROMISSORY NOTE

	$500,000	April 30, 2021

 

Payment of Principal
and Interest. FOR VALUE RECEIVED, Boston Therapeutics, Inc., a Delaware corporation (“Maker”), hereby promises
to pay to the order of [Gold Blaze Limited Vistra Corporate Services] (“Lender”), in the manner hereinafter provided,
the principal amount of FIVE HUNDRED THOUSAND DOLLARS AND ZERO CENTS ($500,000.00) (the “Principal Amount”) together
with interest on the outstanding Principal Amount from the date hereof on the principal of this Note until [December 31], 2021 (the “Maturity
Date”). Interest under this Secured Promissory Note (as the same may be amended, restated, supplemented or otherwise modified
from time to time in accordance with its terms, this “Note”) shall accrue at the rate of five percent (5.0%)
per annum (the “Interest Rate”). Interest shall be payable in arrears and calculated on the basis of a year of 365
or 366 days, as applicable, and charged for the actual number of days elapsed. Accrued but unpaid interest shall be due and payable together
with each payment of the Principal Amount set forth in this Note either on the Maturity Date, upon the occurrence of an Event of Default
(as defined below) or upon any prepayment as set forth in Section 2 below.

1.                 
Manner of Payment. All payments of principal and interest on this Note shall be made by wire transfer of immediately available
funds to an account designated by Lender in writing. If any payment of the Principal Amount or interest on this Note is due on a day that
is not a Business Day, such payment shall be due on the next succeeding Business Day, and such extension of time shall be taken into account
in calculating the amount of interest payable under this Note. “Business Day” means any day other than a Saturday,
Sunday or legal holiday in the State of New York.

2.                 
Prepayment. Maker may, without premium or penalty, at any time and from time to time, prepay all or any portion of the outstanding
Principal Amount due under this Note, provided that each such prepayment is accompanied by accrued but unpaid interest on the Principal
Amount prepaid calculated to the date of such prepayment.

3.                 
Events Of Default. The occurrence of any one or more of the following events shall constitute an event of default hereunder
(“Event of Default”):

(a)              
If Maker shall fail to pay when due any payment of the Principal Amount or interest on this Note, provided that Maker has not cured
such payment within five (5) calendar days of written notice of non-payment from Lender.

(b)              
If, pursuant to or within the meaning of the United States Bankruptcy Code or any other federal or state law relating to insolvency
or relief of debtors (a “Bankruptcy Law”), Maker shall (i) commence a voluntary case or proceeding; (ii) consent
to the entry of an order for relief against it in an involuntary case; (iii) consent to the appointment of a trustee, receiver,
assignee, liquidator or similar official; (iv) make an assignment for the benefit of its creditors; or (v) admit in writing
its inability to pay its debts as they become due.

    	 		 

     

    

 

(c)              
If a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that (i) is for relief against Maker
in an involuntary case; (ii) appoints a trustee, receiver, assignee, liquidator or similar official for Maker or substantially all
of its properties; or (ill) orders the liquidation of Maker.

(d)              
If Maker enters into any of the following: (i) any merger with or into, acquisition of the equity interests of, consolidation with,
or other similar transaction; (ii) the sale, transfer, lease, license or other disposition of all or substantially all of its assets;
or (iii) any transaction or series of related transactions pursuant to which any third party person or “group” (as such term
is used in Section 13(d)(3) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) becomes the “beneficial
owner” (as such term is defined in Rule 13d-3 promulgated under the Exchange Act) of a majority of the total voting power of Maker’s
then outstanding securities. Notwithstanding the foregoing, any merger, acquisition or other consolidation previously announced by the
Maker on or prior to the date hereof shall not be an Event of Default under this Note.

(e)              
If Maker shall incur any indebtedness or sell any equity or equity linked securities after the date hereof without the consent
of Lender.

4.                 
Remedies Upon Event of Default. Upon the occurrence of an Event of Default hereunder, Lender at its option, may: (i) declare
the entire unpaid principal balance and all unpaid accrued interest owing on this Note, due and payable immediately upon written notice
to the Maker; (ii) sue on this Note; (iii) pursue any and all other remedies available to Lender at law or equity; or (iv) pursue any
combination of the above. Maker shall pay all reasonable costs and expenses incurred by or on behalf of Lender in connection with Lender’s
exercise of any or all of its rights and remedies under this Note, including, without limitation, reasonable attorneys’ fees.

5.                 
Most Favored Nation Provision.  At any time after the date of this Note
and until this Note is no longer outstanding, if the Maker effects a subsequent financing of its equity, debt, equity-linked, and/or debt-linked
securities (including any combination thereof) (a “Subsequent Financing”), Lender may elect, in its sole discretion,
to exchange all or some of this Note then held by Lender for any securities issued in a Subsequent Financing on a $1.00 for $1.00 basis
based on the outstanding principal amount of such Note, along with any liquidated damages, accrued but unpaid and other amounts owing
thereon, and the effective price at which such securities are to be sold in such Subsequent Financing.

6.                 
Security. The Maker hereby grants, pledges and collaterally assigns to Lender and hereby grants to Lender a security
interest in, all of the Maker’s right, title and interest in and to the Collateral, whether now or hereafter existing, and whether
now owned or hereafter acquired, to secure the Obligations. The Maker hereby agrees to execute and deliver, from time to time, any and
all further, or other, security agreements, pledge agreements, control agreements, mortgages or other instruments, and to perform such
acts, as Investor may reasonably request and are necessary in the opinion of the Maker’s counsel to effect the transactions contemplated
by this Note and to provide to Lender the benefits of all rights, authorities and remedies conferred upon Lender by the terms of this
Note, and/or in order to perfect and protect any security interest granted or purported to be granted hereby or to enable Lender to exercise
and enforce the rights and remedies hereunder with respect to the Collateral. The Maker agrees to furnish any such information for such
foregoing purposes to Investor on its own behalf and on behalf of Lenders promptly upon reasonable request. This paragraph is referred
to herein as the “Security Agreement”. For purposes hereunder, “Collateral” means all personal property
of the Maker, whether presently owned or existing or hereafter acquired or coming into existence, wherever situated, and all additions
and accessions thereto and all substitutions and replacements thereof, and all proceeds, products and accounts thereof, including, without
limitation, all proceeds from the sale or transfer of the Collateral and of insurance covering the same and of any tort claims in connection
therewith.

    	 	2	 

     

    

 

7.                 
Miscellaneous.

7.1             
Mutilated, Lost, Stolen or Destroyed Note. In case this Note shall be mutilated, lost, stolen or destroyed, Maker shall
issue and deliver, in exchange and substitution for and upon cancellation of the mutilated Note, a new Note of like tenor, but only upon
receipt of evidence reasonably satisfactory to Maker of such loss, theft, or destruction of such Note and reasonable indemnity or bond,
if requested, also reasonably satisfactory to Maker.

7.2             
Maximum Interest. Maker and Lender intend to conform strictly to the applicable usury laws. In no event shall Lender be
entitled to interest exceeding the maximum rate permitted by law. If Lender ever receives an amount designated as interest which would
exceed the highest lawful rate, the amount which would be excessive interest shall be considered to be a reduction of principal and not
a payment of interest.

7.3             
Notices. All notices and other communications required or permitted by this Note shall be in writing and shall be (a) delivered
to the appropriate address by hand, by nationally recognized overnight service or by courier service (costs prepaid); (b) sent by facsimile
or e-mail, or (c) sent by registered or certified mail, return receipt requested, in each case to the following addresses, facsimile numbers
or e-mail addresses (or to such other address, facsimile number, e-mail address or person as Maker or Lender may designate by notice to
the other):

If
to Lender:

 

Boston
Therapeutics, Inc.

354 Merrimack Street #4 

Lawrence,
MA 01843

Email: 

 

If
to Maker:

 

______________________

______________________

______________________

    	 	3	 

     

    

 

All notices and other communications
shall be deemed have been duly given (as applicable): if delivered by hand, when delivered by hand; if delivered by overnight service,
when delivered by nationally recognized overnight service; if delivered by courier, when delivered by courier; if sent via registered
or certified mail, five (5) Business Days after being deposited in the mail, postage prepaid; or if delivered by email, when transmitted
if transmitted without indication of delivery failure prior to 5:00 p.m. local time for the recipient (and if transmitted without indication
of delivery failure after 5:00 p.m. local time for the recipient, then delivery will be deemed duly given at 9:00 a.m. local time for
the recipient on the subsequent Business Day).

7.4             
Entire Agreement. This Note supersedes all prior agreements, whether written or oral, between Maker and Lender with respect
to its subject matter and constitutes a complete and exclusive statement of the terms of the agreement between Maker and Lender with respect
to its subject matter. All parties hereto have had the opportunity to review this Note with their counsel. This Note is the result of
good faith, arms-length negotiations.

7.5             
Modifications; Waiver. No provision of this Note may be amended, supplemented, waived or otherwise modified except by a
written agreement mutually executed by Maker and Lender. Neither any failure nor any delay by Maker or Lender in exercising any right,
power or privilege under this Note or any of the documents referred to in this Note will operate as a waiver of such right, power or privilege,
and no single or partial exercise of any such right, power or privilege will preclude any other or further exercise of such right, power
or privilege or the exercise of any other right, power or privilege.

7.6             
Assignments, Successors and No Third Party Rights. Neither Maker nor Lender may assign any of its rights or delegate any
of its obligations under this Note without the prior written consent of the other. Any purported assignment without written consent of
the other party shall be void and of no effect. This Note will apply to, be binding in all respects upon and inure to the sole benefit
of the successors and permitted assigns of Maker and Lender. Nothing expressed or referred to in this Note will be construed to give any
person other than Maker and Lender any legal or equitable right, remedy or claim under or with respect to any provision of this Note.

7.7             
Severability. If any provision of this Note is held invalid or unenforceable by any court of competent jurisdiction, the
other provisions of this Note will remain in full force and effect. Any provision of this Note held invalid or unenforceable only in part
or degree will remain in full force and effect to the extent not held invalid or unenforceable.

7.8             
Governing Law; Consent to Jurisdiction; Waiver of Jury Trial. This Agreement shall
be governed by, and construed in accordance with, the internal laws of the State of New York without regard to the choice of law principles
thereof. Each of the parties hereto irrevocably submits to the exclusive venue and jurisdiction of the courts of the State of New York
located in New York County and the United States District Court for the Southern District of New York for the purpose of any suit, action,
proceeding or judgment relating to or arising out of this Agreement and the transactions contemplated hereby, and agrees that such venue
and jurisdiction are appropriate and convenient for the parties. Service of process in connection with any such suit, action or proceeding
may be served on each party hereto anywhere in the world by the same methods as are specified for the giving of notices under this Agreement.
Each of the parties hereto irrevocably consents to the jurisdiction of any such court in any such suit, action or proceeding and to the
laying of venue in such court. Each party hereto irrevocably waives any objection to the laying of venue of any such suit, action or proceeding
brought in such courts and irrevocably waives any claim that any such suit, action or proceeding brought in any such court has been brought
in an inconvenient forum. EACH OF THE PARTIES HERETO WAIVES ANY RIGHT TO REQUEST A TRIAL BY JURY IN ANY LITIGATION WITH RESPECT
TO THIS AGREEMENT AND REPRESENTS THAT COUNSEL HAS BEEN CONSULTED SPECIFICALLY AS TO THIS WAIVER.

    	 	4	 

     

    

 

7.9             
Time of Essence. With regard to all dates and time periods set forth or referred to in this Note, time is of the essence.

7.10         
Counterparts. This Note may be executed in two (2) or more counterparts, each of which shall be deemed an original, but
all of which together shall constitute one and the same instrument. Counterparts may be delivered via electronic mail (including pdf or
any electronic signature complying with the U.S. federal ESIGN Act of 2000, e.g., www.docusign.com) or other transmission method and any
counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes.

[Signature Page Follows]

    	 	5	 

     

    

 

IN WITNESS WHEREOF, Maker
has executed and delivered this Note as of the date first stated above.

	 	BOSTON THERAPEUTICS, INC.
	 	 
	 	By: 	
	 	 	 Name:
 Title:

 

 

	ACKNOWLEDGED AND AGREED AS OF THE DATE FIRST STATED ABOVE:	 
	
    [GOLD BLAZE LIMITED VISTRA CORPORATE SERVICES]
	 
	 	 
	Name:	 
	Title: 	 

 

6Exhibit 10.1

 

 

THE SECURITY REPRESENTED
HEREBY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 OR ANY STATE SECURITIES LAWS AND NEITHER SUCH SECURITY NOR ANY INTEREST
THEREIN MAY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER
SUCH ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION UNDER SUCH ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL FOR THE HOLDER,
WHICH COUNSEL AND OPINION ARE REASONABLY SATISFACTORY TO COUNSEL FOR THIS COMPANY, IS AVAILABLE.

 

NANOMIX,
INC.

 

10% PROMISSORY
NOTE

 

	$500,000.00	April 30, 2021

 

 

FOR VALUE RECEIVED,
Nanomix, Inc., a California corporation (the “Company”), promises to pay to the order of Boston Therapeutics, Inc.
a Delaware corporation (“Maker”), and its successors and permitted assigns (the “Holder”), the principal
sum of $500,000.00, in accordance with the terms hereof, and to pay interest on the principal sum outstanding, at the rate of ten percent
(10%) per annum, compounded annually. This Note is secured. The Company hereby acknowledges receipt of such principal sum.

 

The following is a
statement of the rights of the Holder of this Note and the terms and conditions to which this Note is subject, and to which the Holder,
by acceptance of this Note, agrees:

 

1.                  
PRINCIPAL REPAYMENT.

 

(a)               
This Note and any accrued interest hereunder will become due and payable in accordance with the terms hereof upon the earlier of
(i) the failure to consummate the transactions contemplated by that certain agreement and plan of merger (the “Merger Agreement”),
dated as of February 2, 2021, by and between the Company and the Maker, (ii) the termination of the Merger Agreement and (iii) June 11,
2021 (such earlier date, the “Maturity Date”); provided, however, that upon the consummation of a Business Combination
between the Company and/or its affiliates and the Maker in accordance with the terms of the Merger Agreement, the outstanding principal
amount of this Note and all accrued and unpaid interest thereon shall be assumed by the Maker and become payable upon demand upon five
days prior written notice from the Holder.

 

(b)               
For the purposes of this Note, the following terms shall have the respective meanings provided in this Section (b):

 

(i)                
“Business Combination” shall mean the: (A) merger of the Company with any Person in which the stockholders
of the Company (if considered a group) immediately prior to such transaction do not continue to control, directly or indirectly, more
than fifty percent (50%) of the voting securities of the surviving Person in such transaction and have a right to at least more than
fifty percent (50%) of the aggregate economic rights of distributions or dividends to holders of securities of such surviving Person
and any Person that Controls such surviving Person; (B) the sale of all or substantially all of the assets of the Company, including
any sale by license, contract or similar arrangement, in one or a series of related transactions; (C) any tender offer or exchange offer
(whether by the Company or another Person) is completed pursuant to which holders of common stock of the Company are permitted to tender
or exchange their shares for other securities, cash or property, or (D) the Company effects any reclassification of its common stock
or any compulsory share exchange pursuant to which the common stock of the Company is effectively converted into or exchanged for other
securities, cash or property.

 

    	 		 

     

    

 

 

(ii)              
“Control” shall mean power and authority of a specified Person to control the business and affairs of any other
specified Person.

 

(iii)            
“Person” shall mean an individual or corporation, partnership, trust, incorporated or unincorporated association,
joint venture, limited liability company, joint stock company, government (or an agency or subdivision thereof) or other entity of any
kind.

 

2.                  
INTEREST. The Holder of this Note is entitled to receive interest at an annual interest rate of ten percent (10%), compounded
annually, of the outstanding principal amount of this Note; provided, however, that during any Event of Default (as defined below) under
this Note the interest rate shall increase to fifteen percent (15%) per annum, compounded annually. Interest on the outstanding principal
balance of this Note shall be computed on the basis of the actual number of days elapsed and a 365-day year. Accrual of the interest on
the outstanding principal amount shall commence on the date hereof and shall continue until the earlier of (a) the date on which all of
the obligations of this Note have been paid in full and (b) the Closing. Subject to the proviso in Section 1(a), all accrued and unpaid
interest on the outstanding balance of this Note shall be paid on the Maturity Date.

 

3.                  
AFFIRMATIVE AND NEGATIVE COVENANTS OF THE COMPANY. The Company hereby covenants to the Holder as follows:

 

(a)               
Event of Default. Within five (5) business days of any officer of the Company obtaining knowledge of any Event of Default
(as defined in Section 4 hereof), if such Event of Default is then continuing, the Company shall furnish to the Holder a written notice
setting forth the details thereof and the action which the Company is taking or proposes to take with respect thereto.

 

(b)               
Performance. The Company will not, by any voluntary action, avoid or seek to avoid the observance or performance of any
of the terms to be observed or performed hereunder by the Company, but will at all times in good faith assist in the carrying out of the
provisions of this Note.

 

(c)               
Use of Proceeds. The proceeds of the loan represented by this Note shall be used by the Company only for the payment of
operating expenses that are incurred by the Company in connection with its ordinary course of business, and expenses incurred in connection
with the transactions contemplated by the Merger Agreement.

 

(d)               
Indebtedness. For so long as any portion of this Note remains outstanding, the Company shall not have the right to
enter into any other debt financings or secure any other debt instruments using the Collateral without the prior written approval and
authorization of the Holder. Notwithstanding the foregoing, the Company shall not be prohibited from entering into contracts related to
the normal course of trade or other standard business operations.

 

4.                  
EVENTS OF DEFAULT. This Note shall become immediately due and payable at the option of the Holder, upon any one or more
of the following events or occurrences (“Events of Default”):

 

(a)               
if any portion of this Note is not paid when due;

 

(b)               if
the Company defaults in the observance or performance of any other material term, agreement, covenant or condition of this Note and the
Company fails to remedy such default within fifteen (15) days after the date of such default, or, if such default is of such a nature
that it cannot with due diligence be cured within said fifteen (15) day period, if the Company fails, within said fifteen (15) days,
to commence all steps necessary to cure such default, and fails to complete such cure within thirty (30) days after the end of such fifteen
(15) day period;

 

 

    	 	2	 

     

    

 

(c)               
if any final judgment for the payment of money is rendered against the Company and the Company does not discharge the same or cause
it to be discharged or vacated within ninety (90) days from the entry thereof, or does not appeal therefrom or from the order, decree
or process upon which or pursuant to which said judgment was granted, based or entered, and does not secure a stay of execution pending
such appeal within ninety (90) days after the entry thereof or if there is an acceleration of the obligations by any of the holders of
the existing indebtedness for borrowed money of the Company and the Company does not satisfy such obligations or stay such acceleration
within thirty (30) days;

 

(d)               
if the Company makes an assignment for the benefit of creditors or if the Company generally does not pay its debts as they become
due; or

 

(e)               
if a receiver, liquidator or trustee of the Company is appointed or if the Company is adjudicated a bankrupt or insolvent, or if
any petition for bankruptcy, reorganization or arrangement pursuant to federal bankruptcy law, or any similar federal or state law, is
filed by or against, consented to, or acquiesced in, by the Company or if any proceeding for the dissolution or liquidation of the Company
is instituted; however, if such appointment, adjudication, petition or proceeding is involuntary and is not consented to by the Company,
upon the same not being discharged, stayed or dismissed within sixty (60) days.

 

5.                  
USURY. In no event shall the amount of interest paid or agreed to be paid hereunder exceed the highest lawful rate permissible
under applicable law. Any excess amount of deemed interest shall be null and void and shall not interfere with or affect the Company’s
obligation to repay the principal of and interest on this Note.

 

6.                  
MUTILATED, DESTROYED, LOST OR STOLEN NOTE. In case this Note shall become mutilated or defaced, or be destroyed, lost or
stolen, the Company shall execute and deliver a new note of like principal amount in exchange and substitution for the mutilated or defaced
Note, or in lieu of and in substitution for the destroyed, lost or stolen Note. In the case of a mutilated or defaced Note, the Holder
shall surrender such Note to the Company. In the case of any destroyed, lost or stolen Note, the Holder shall furnish to the Company:
(a) evidence to its satisfaction of the destruction, loss or theft of such Note and (b) such security or indemnity as may be reasonably
required by the Company to hold the Company harmless.

 

7.                  
WAIVER OF DEMAND, PRESENTMENT, ETC.

 

(a)               
The Company hereby expressly waives demand and presentment for payment, notice of nonpayment, protest, notice of protest, notice
of dishonor, notice of acceleration or intent to accelerate, bringing of suit and diligence in taking any action to collect amounts called
for hereunder and shall be directly and primarily liable for the payment of all sums owing and to be owing hereunder, regardless of and
without any notice, diligence, act or omission as or with respect to the collection of any amount called for hereunder.

 

(b)               
No delay or omission on the part of the Holder in exercising any right hereunder shall operate as a waiver of such right or of
any other right of Holder, nor shall any delay, omission or waiver on any one occasion be deemed a bar to or waiver of the same or any
other right on any future occasion.

 

    	 	3	 

     

    

  

8.                  
PAYMENT.

 

(a)               
Except as otherwise provided for herein, all payments with respect to this Note shall be made in lawful currency of the United
States of America by check or wire transfer of immediately available funds, at the option of the Holder, at the principal office of the
Holder or such other place or places or designated accounts as may be reasonably specified by the Holder of this Note in a written notice
to the Company at least three (3) business days prior to payment. Payment shall be credited first to the accrued interest then due and
payable and the remainder applied to principal.

 

		(b)	This Note may be prepaid in full, but not in part, without payment of additional

fee or penalty.

 

9.                  
ASSIGNMENT. The obligations of the Company under this Note shall be binding upon, its successors or assigns. Neither the
Company nor the Holder may assign any rights, duties or obligations hereunder unless the other party shall have given its prior written
consent; provided, however, that this Note may be assigned, conveyed or transferred without the prior written consent of
the Company to any affiliate of Holder.

 

10.              
WAIVER AND AMENDMENT. ANY PROVISION OF THIS NOTE, INCLUDING, WITHOUT LIMITATION, THE MATURITY DATE HEREOF, AND THE OBSERVANCE
OF ANY TERM HEREOF, MAY BE AMENDED, WAIVED OR MODIFIED (EITHER GENERALLY OR IN A PARTICULAR INSTANCE AND EITHER RETROACTIVELY OR PROSPECTIVELY)
ONLY WITH THE WRITTEN CONSENT OF THE COMPANY AND THE HOLDER.

 

11.              
NOTICES. All notices required or permitted to be given to a party pursuant to this Note will be in writing and will be effective
and deemed to provide such party sufficient notice under this Note on the earliest of the following: (i) at the time of personal
delivery, if delivered in person; (ii) when sent by confirmed electronic mail or facsimile if sent during normal business hours of
the recipient, if not, then on the next Business Day; (iii) one (1) Business Day after deposit with an express overnight courier for United
States deliveries, or three (3) Business Days after deposit with an international express air courier for deliveries outside of the United
States, with proof of delivery from the courier requested; or (iv) four (4) Business Days after deposit in the United States mail
by certified mail (return receipt requested) for United States deliveries. All notices not delivered personally will be sent with postage
and/or other charges prepaid and properly addressed to the party to be notified at the address indicated for such party on the signature
page hereto or at such other address as any party may designate by giving ten (10) days’ advance written notice to all other parties.

 

12.              
GOVERNING LAW; JURISDICTION; WAIVER OF JURY TRIAL.

 

(a)               
THIS NOTE SHALL BE ENFORCED, GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO AGREEMENTS
MADE AND TO BE PERFORMED ENTIRELY WITHIN SUCH STATE, WITHOUT REGARD TO THE PRINCIPLES OF CONFLICTS OF LAW.

 

(b)               
THE COMPANY HEREBY SUBMITS TO THE EXCLUSIVE JURISDICTION OF THE STATE OF NEW YORK OR UNITED STATES FEDERAL COURTS LOCATED IN NEW
YORK COUNTY, NEW YORK WITH RESPECT TO ANY DISPUTE ARISING UNDER THIS NOTE. THE COMPANY IRREVOCABLY WAIVES THE DEFENSE OF AN INCONVENIENT
FORUM TO THE MAINTENANCE OF SUCH SUIT OR PROCEEDING. THE COMPANY FURTHER AGREES THAT SERVICE OF PROCESS UPON IT MAILED BY FIRST CLASS
MAIL SHALL BE DEEMED IN EVERY RESPECT EFFECTIVE SERVICE OF PROCESS UPON THE COMPANY IN ANY SUCH SUIT OR PROCEEDING. NOTHING HEREIN SHALL
AFFECT THE HOLDER’S RIGHT TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW. THE COMPANY AGREES THAT A FINAL NON-APPEALABLE
JUDGMENT IN ANY SUCH SUIT OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER JURISDICTIONS BY SUIT ON SUCH JUDGMENT OR IN
ANY OTHER LAWFUL MANNER.

 

    	 	4	 

     

    

 

 

(c)               
THE COMPANY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY
DISPUTE HEREUNDER OR IN CONNECTION WITH OR ARISING OUT OF THIS NOTE.

13.           
SEVERABILITY. If one or more provisions of this Note are held to be unenforceable under applicable law, such provisions
shall be excluded from this Note, and the balance of this Note shall be interpreted as if such provisions were so excluded and shall be
enforceable in accordance with its terms.

 

14.              
HEADINGS. Section headings in this Note are for convenience only, and shall not be used in the construction of this Note.

 

15.              
COSTS OF COLLECTION. The Company shall pay all reasonable and documented attorney fees, and all other reasonable and documented
fees and disbursements of the Holder that are incurred to enforce the terms and conditions of this Note or to defend any action by Holder
or any of its affiliates asserted by or on behalf of the Company.

 

16.           
SECURITY AGREEMENT. The Company hereby grants, pledges and collaterally assigns to Holder
and hereby grants to Holder a security interest in, all of the Company’s right, title and interest in and to the Collateral, whether
now or hereafter existing, and whether now owned or hereafter acquired, to secure the Obligations. The Company hereby agrees to execute
and deliver, from time to time, any and all further, or other, security agreements, pledge agreements, control agreements, mortgages or
other instruments, and to perform such acts, as Investor may reasonably request and are necessary in the opinion of the Company’s
counsel to effect the transactions contemplated by this Note and to provide to Holder the benefits of all rights, authorities and remedies
conferred upon Holder by the terms of this Note, and/or in order to perfect and protect any security interest granted or purported to
be granted hereby or to enable Holder to exercise and enforce the rights and remedies hereunder with respect to the Collateral. The Company
agrees to furnish any such information for such foregoing purposes to Investor on its own behalf and on behalf of Holder promptly upon
reasonable request. This paragraph is referred to herein as the “Security Agreement”. For purposes hereunder, “Collateral”
means all personal property of the Company, whether presently owned or existing or hereafter acquired or coming into existence, wherever
situated, and all additions and accessions thereto and all substitutions and replacements thereof, and all proceeds, products and accounts
thereof, including, without limitation, all proceeds from the sale or transfer of the Collateral and of insurance covering the same and
of any tort claims in connection therewith.

 

17.           
COUNTERPARTS. This Note may be executed in two (2) or more counterparts, each of which
shall be deemed an original, but all of which together shall constitute one and the same instrument. Counterparts may be delivered via
electronic mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000, e.g., www.docusign.com)
or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and
effective for all purposes.

 

 

[Signature Page to Follow]

    	 	5	 

     

    

 

IN WITNESS WHEREOF, the
Company has executed and delivered this Note as of the date first stated above.

	 	NANOMIX, INC.
	 	 
	 	By: 	
	 	 	Name:  David Ludvigson
Title:  President & CEO
	 	 	 
	 	 	 
	 	 	Address: 5900 Hollis St, Suite P, Emeryville, CA 94608

 

	ACKNOWLEDGED AND AGREED AS OF THE DATE FIRST STATED ABOVE:	 
	
    BOSTON THERAPEUTICS, INC.
	 
	 	 
	Name:	 
	Title: 	 

 

6

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