Quarterly report pursuant to Section 13 or 15(d)

4. Property and Equipment, net (Details)

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4. Property and Equipment, net (Details) - USD ($)
Mar. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Line Items]    
Property and equipment - at cost $ 346,877 $ 332,263
Less accumulated depreciation (279,324) (270,242)
Property and equipment - net 67,553 62,021
Laboratory Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment - at cost 264,583 249,969
Office and Computer Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment - at cost 35,190 35,190
Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment - at cost 26,841 26,841
Furniture and Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment - at cost $ 20,263 $ 20,263