Property and Equipment, net

12 Months Ended

Dec. 31, 2021

4. Property and Equipment, net

Property and equipment, net consists of the following as of December 31, 2021 and 2020:

Summary of Property and Equipment, Net

	2021			2020
Furniture and fixtures	$	20,742		$	20,742
Laboratory equipment		869,655			944,657
Leasehold improvements		487,871			487,871
Office and computer equipment		294,236			302,825
Property and equipment, gross		1,672,504			1,756,095
Accumulated depreciation and amortization		(1,626,796	)		(1,713,382	)
Property and equipment, net	$	45,708		$	42,713

Depreciation and amortization expense for the years ending December 31, 2021 and 2020 was $41,237 and $51,705 respectively.