Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (File No. 333-163478) of Applied DNA Sciences, Inc. of our report dated December 15 2010, relating to the consolidated financial statements, financial statement schedule, which appears in this annual report on Form 10-K/A.

/s/ RBSM LLP

New York, New York

July 25, 2011