CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 4,878,446	$ 2,183,030
Grants and accounts receivable, net of allowance for doubtful accounts of $1,801 at June 30, 2014 and $-0- at December 31, 2013	330,347	453,017
Short-term investments	4,745,000
Inventories	303,686	245,608
Prepaid expenses and other current assets	364,964	605,312
Total current assets	10,622,443	3,486,967
Property and equipment - net	171,990	144,393
Other assets	462,588	414,375
Total long-term assets	634,578	558,768
Total Assets	11,257,021	4,045,735
Current Liabilities:
Accounts payable	525,957	786,517
Accrued expenses and other current liabilities	638,746	361,700
Deferred revenue	5,833	272,359
Warrant liability	889,440
Convertible notes payable, net of debt discount in the amount of $35,662 at June 30, 2014 and $198,644 at December 31, 2013	709,338	1,644,356
Total current liabilities	2,769,314	3,064,932
Redeemable Series B Convertible Preferred Stock, par value $0.001, 200,000 Shares authorized; 83.353.00 and 79,336.54 issued and outstanding at June 30, 2014 and December 31, 2013, respectively	17,717,838	15,246,350
Stockholders' Equity/ (Deficit):
10% Series A Convertible Preferred Stock, 12,000,000 shares authorized; 1,848,753 and 1,759,666 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	1,849	1,760
Common Stock, 800,000,000 shares authorized; 310,399,452 and 251,319,547 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	310,399	251,320
Additional paid-in capital	101,631,678	91,343,135
Accumulated other comprehensive loss	(50,836)	(55,987)
Deficit accumulated during the development stage	(111,123,221)	(105,805,775)
Total stockholders' equity (deficiency)	(9,230,131)	(14,265,547)
Total Liabilities and Stockholders' Equity (Deficiency)	$ 11,257,021	$ 4,045,735