Common use of INVESTMENT RIGHT EXERCISE NOTICE Clause in Contracts

INVESTMENT RIGHT EXERCISE NOTICE. The undersigned, Socius XX XX, Ltd., a Bermuda exempted company (the “Investor”), hereby exercises the right to purchase shares of common stock, par value $0.01 per share (the “Common Stock”), of DayStar Technologies, Inc., a Delaware corporation (“Company”), pursuant to the Additional Investment Right contained in the Securities Purchase Agreement, dated as of February 2, 2011, between the Company and the Investor (the “Purchase Agreement”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Purchase Agreement.

INVESTMENT RIGHT EXERCISE NOTICE. The undersigned, Socius XX XX, Ltd., a Bermuda exempted company (the “Investor”), hereby exercises the right to purchase shares of common stock, par value $0.01 0.006 per share (the “Common Stock”), of DayStar TechnologiesMarina Biotech, Inc., a Delaware corporation (“Company”), pursuant to the Additional Investment Right contained in the Securities Purchase Agreement, dated as of February 2December 22, 2011, between the Company and the Investor (the “Purchase Agreement”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Purchase Agreement.

INVESTMENT RIGHT EXERCISE NOTICE. The undersigned, Socius XX XX, Ltd., a Bermuda exempted company (the “Investor”), hereby exercises the right to purchase ___________________ shares of common stock, par value $0.01 0.001 per share (the “Common Stock”), of DayStar Technologies, Inc.Nyxio Technologies Corporation, a Delaware Nevada corporation (“Company”), pursuant to the Additional Investment Right contained in the Securities Purchase Agreement, dated as of February 221, 20112012, between the Company and the Investor (the “Purchase Agreement”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Purchase Agreement.

INVESTMENT RIGHT EXERCISE NOTICE. The undersigned, Socius XX CX XX, Ltd., a Bermuda exempted company (the “Investor”), hereby exercises the right to purchase ___________________ shares of common stock, par value $0.01 0.0001 per share (the “Common Stock”), of DayStar TechnologiesBionovo, Inc., a Delaware corporation (“Company”), pursuant to the Additional Investment Right contained in the Securities Purchase Agreement, dated as of February 2December 30, 2011, between the Company and the Investor (the “Purchase Agreement”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Purchase Agreement.

INVESTMENT RIGHT EXERCISE NOTICE. The undersigned, Socius XX XX, Ltd., a Bermuda exempted company (the “Investor”), hereby exercises the right to purchase ___________________ shares of common stock, par value $0.01 0.001 per share (the “Common Stock”), of DayStar Technologies, Oilsands Quest Inc., a Delaware Colorado corporation (“Company”), pursuant to the Additional Investment Right contained in the Securities Purchase Agreement, dated as of February 2October 17, 2011, between the Company and the Investor (the “Purchase Agreement”). Capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Purchase Agreement.