Quarterly report pursuant to Section 13 or 15(d)

4. Property and Equipment, net

4. Property and Equipment, net

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

4.	Property and Equipment, net

Property and equipment, net consists of the following:

	September 30, 2018			December 31, 2017
Laboratory equipment	$	234,845		$	264,583
Office and computer equipment		46,634			46,634
Leasehold improvements		26,841			26,841
Furniture and fixtures		20,263			20,263
Property and equipment – at cost		328,583			358,321
Less accumulated depreciation		(320,340	)		(330,475	)
Property and equipment – net	$	8,243		$	27,846

Depreciation expense was approximately $1,000 and $5,000 for the three months ended September 30, 2018 and 2017, respectively, and approximately $13,000 and $19,000 for the nine months ended September 30, 2018 and 2017, respectively. During the three months ended September 30, 2018, the Company sold lab equipment for $22,500 resulting in an approximate $15,000 gain.