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Property and Equipment
9 Months Ended
Sep. 30, 2023
Property and Equipment  
Property and Equipment

4. Property and Equipment

Property and equipment, net consisted of the following:

September 30, 

December 31, 

    

2023

    

2022

 

Furniture and fixtures

$

342,203

$

342,203

Laboratory equipment

 

1,349,370

 

1,343,081

Office equipment

 

18,943

 

17,762

Computer equipment

 

316,466

 

309,826

Leasehold improvements

616,133

616,133

Property and equipment

 

2,643,115

 

2,629,005

Less accumulated depreciation

 

(2,510,136)

 

(2,386,615)

Property and equipment, net

$

132,979

$

242,390

Depreciation expense was $42,747 and $47,347 for the three months ended September 30, 2023 and 2022, respectively, and $130,004 and $161,427 for the nine months ended September 30, 2023 and 2022, respectively.