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3. Property and Equipment, net (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

	December 31,
	2012			2011
Laboratory and manufacturing equipment	$	172,560		$	172,560
Office equipment		137,093			137,093
Leasehold improvements		8,117			8,117
PCT collaboration, demonstration and leased systems		461,858			461,858
Total property and equipment		779,628			779,628
Less accumulated depreciation		(749,346	)		(690,457	)
Net book value	$	30,282		$	89,171

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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