EXHIBIT
      31.1





CERTIFICATION
      OF PRINCIPAL EXECUTIVE OFFICER


PURSUANT
      TO RULES 13a-14 AND 15d-14


OF
      THE
      SECURITIES EXCHANGE ACT OF 1934





I,
      Richard H. Papalian., certify that:





I
      have
      reviewed this Quarterly Report on Form 10-QSB of Sionix
      Corporation;





Based
      on
      my knowledge, this report does not contain any untrue statement of a material
      fact or omit to state a material fact necessary to make the statements made,
      in
      light of the circumstances under which such statements were made, not misleading
      with respect to the period covered by this report.





Based
      on
      my knowledge, the financial statements, and other financial information included
      in this report, fairly present in all material respects the financial condition,
      results of operations and cash flows of the small business issuer as of, and
      for, the periods, presented in this report.





The
      small
      business issuer’s other certifying officer and I are responsible for
      establishing and maintaining disclosure controls and procedures (as defined
      in
      Exchange Act Rules 13a-15(e) and 15d-15(e)) for the small business issuer and
      have:





(a)
            designed
                such disclosure controls and procedures, or caused such disclosure
                controls and procedures to be designed under my supervision, to ensure
                that material information relating to the small business issuer,
                including
                its consolidated subsidiaries, is made known to me by others within
                those
                entities, particularly during the period in which the periodic report
                is
                being prepared;





(b)
            evaluated
                the effectiveness of the small business issuer’s disclosure controls and
                procedures and presented in this report our conclusions about the
                effectiveness of the disclosure controls and procedures, as of the
                end of
                the period covered by this report based on such evaluation;
                and





(c)
            disclosed
                in this report any change in the small business issuer’s internal control
                over financial reporting that occurred during the small business
                issuer’s
                most recent fiscal quarter (the small business issuer's fourth fiscal
                quarter in the case of an annual report) that has materially affected,
                or
                is reasonably likely to materially affect, the small business issuer’s
                internal control over financial reporting;
                and





The
      small
      business issuer’s other certifying officer and I have disclosed, based on our
      most recent evaluation of internal control over financial reporting, to the
      small business issuer’s auditors and to the audit committee of the board of
      directors (or persons fulfilling the equivalent function):





(a)  all
      significant deficiencies in the design or operation of internal control over
      financial reporting which are reasonably likely to adversely affect the small
      business issuer’s ability to record, process, summarize and report financial
      information; and





(b)  any
      fraud, whether or not material, that involves management or other employees
      who
      have a significant role in the small business issuer’s internal control over
      financial reporting.





Dated:
      February 20, 2008




/s/Richard
              H.
              PapalianRichard H. Papalian
              Chief Executive Officer