NATURE OF THE BUSINESS	3 Months Ended
Dec. 31, 2023
NATURE OF THE BUSINESS
NATURE OF THE BUSINESS	NOTE A — NATURE OF THE BUSINESS Applied DNA Sciences, Inc. (“Applied DNA” or the “Company”) is a biotechnology company developing and commercializing technologies to produce and detect deoxyribonucleic acid (“DNA”) and ribonucleic acid (“RNA”). Using polymerase chain reaction (“PCR”) to enable the production and detection of DNA and RNA, the Company currently operates in three primary business markets: (i) the enzymatic manufacture of synthetic DNA for use in the production of nucleic acid - based therapeutics (including biologics and drugs) and, through the Company’s recent acquisition of Spindle Biotech, Inc. (“Spindle”), the development and sale of a proprietary RNA polymerase (“RNAP”) for use in the production of messenger RNA (“mRNA”) therapeutics (“Therapeutic DNA Production Services”); (ii) the detection of DNA and RNA in molecular diagnostics and genetic testing services (“MDx Testing Services”); and (iii) the manufacture and detection of DNA for industrial supply chain security services (“DNA Tagging and Security Products and Services”). To date, the Company has continued to incur expenses in expanding its business to meet current and anticipated future demand and it has limited sources of liquidity.

The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).

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