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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Cash flows from operating activities:    
Net loss $ (621,813) $ (548,341)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 4,980 6,898
Stock-based compensation expense 52,549 14,580
Changes in assets and liabilities:    
Grant funds and other receivables 54,758 6,560
Prepaid expenses and other current assets 20,848 10,151
Accounts payable and accrued expenses 107,105 178,054
Total adjustments 240,240 216,243
Net cash used in operating activities (381,573) (332,098)
Cash flows from investing activities:    
Purchase of property and equipment (4,350)
Net cash used in investing activities (4,350)
Cash flows from financing activities:    
Net proceeds from sale of preferred stock 590,000
Net proceeds from sale of common stock 49,167
Proceeds from issuance of note payable 50,000
Net cash provided in financing activities 640,000 49,167
Net increase (decrease) in cash and cash equivalents 258,427 (287,281)
Cash and cash equivalents at beginning of period 312,727 454,030
Cash and cash equivalents at end of period $ 571,154 $ 166,749