7. Research and development (Details Narrative) (USD $)	3 Months Ended		6 Months Ended		174 Months Ended
7. Research and development (Details Narrative) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expenses	$ 183,424	$ 81,213	$ 350,890	$ 552,568	$ 7,795,887
Temple University Research Development Agreement [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expenses			93,750
License maintenance fee paid			100,000
Annual maintenance fees			187,500
Royalty fee, Minimum rate			0.04
Royalty fee, Maximum rate			0.07
Revenues generated from sub-licensees			0.25
Temple's patent rights licensed to the Company			Temple also agreed to defer payment of the $37,500 of the amount due if the Company agrees to fund at least $250,000 in research or development of Temple's patent rights licensed to the Company.
Sponsored Research Agreement [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development expenses			62,500
AOT Testing [Member]
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Costs incurred for the testing			$ 182,692