Common use of FORM OF OFFICER’S CERTIFICATE Clause in Contracts

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d) of that certain Purchase Agreement dated as of March 24, 2020, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICS, INC., a Delaware corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________, ______________ of the Company, hereby certifies as follows:

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d) of that certain Purchase Agreement dated as of March 244, 20202019, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICSIDERA PHARMACEUTICALS, INC., a Delaware corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________, ______________ of the Company, hereby certifies as follows:

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d8(e) of that certain Purchase Agreement dated as of March 24May 3, 20202011, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICSLIGHTWAVE LOGIC, INC., a Delaware Nevada corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________Xxxxx X Xxxxxxxx, ______________ President and CEO of the Company, hereby certifies as follows:

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d8(e) of that certain Purchase Agreement dated as of March 24May __, 20202011, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICSGOLDEN PHOENIX MINERALS, INC., a Delaware Nevada corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________, ______________ of the Company, hereby certifies as follows:

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d8(e) of that certain Purchase Agreement dated as of March 24, 2020_________, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICS, INCNUTRA PHARMA CORP., a Delaware California corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________, ______________ of the Company, hereby certifies as follows:

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d8(e) of that certain Purchase Agreement dated as of March 24________, 20202013, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICS, INCANAVEX LIFE SCIENCES CORP., a Delaware Nevada corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________, ______________ of the Company, hereby certifies as follows:

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d8(e) of that certain Purchase Agreement dated as of March 24, 2020_________, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICS, INC.CYTOSORBENTS CORPORATION, a Delaware Nevada corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________, ______________ of the Company, hereby certifies as follows:

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d8(e) of that certain Purchase Agreement dated as of March 24June 6, 20202013, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICSLIGHTWAVE LOGIC, INC., a Delaware Nevada corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________, ______________ of the Company, hereby certifies as follows:

FORM OF OFFICER’S CERTIFICATE. This Officer’s Certificate (“Certificate”) is being delivered pursuant to Section 8(d8(e) of that certain Purchase Agreement dated as of March 24February 3, 20202014, (“Purchase Agreement”), by and between HTG MOLECULAR DIAGNOSTICS, INC.KONARED CORPORATION, a Delaware Nevada corporation (the “Company”), and LINCOLN PARK CAPITAL FUND, LLC (the “Investor”). Terms used herein and not otherwise defined shall have the meanings ascribed to them in the Purchase Agreement. The undersigned, ___________, ______________ of the Company, hereby certifies as follows: