Method and process for aerosol jet printing regenerated silk fibroin solutions

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United States of America Patent

PATENT NO 12071550
APP PUB NO 20210253881A1
SERIAL NO

17177631

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Abstract

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In a method of depositing a fibroin structure, a fibroin ink is generated. The fibroin ink is aerosol jet printed onto a substrate. To prepare the ink, a plurality of biologically-generated silk cocoons are each cut into at least two pieces of raw silk and are degummed to remove sericin, leaving fibroin fibers. The fibroin fibers are dissolved into a lithium bromide solution. The salt is removed by placing the fibroin/salt solution in a dialysis membrane tube and submerging it in deionized water. The fibroin solution is centrifuged to remove impurities therefrom, leaving fibroin ink. The fibroin ink is atomized into a fibroin ink aerosol, which is directed to a print nozzle. A focusing gas sheath is directed around the print nozzle to deposit fibroin onto a surface.

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Patent Owner(s)

Patent OwnerAddress
GEORGIA TECH RESEARCH CORPORATION926 DALNEY STREET NW ATLANTA GA 30318

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harris, Tequila A L Atlanta, US 3 0
Kalaitzidou, Kyriaki Atlanta, US 5 25
Xiao, Yuhan Atlanta, US 1 0
Yao, Donggang Atlanta, US 8 54

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