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Silk patterns made by direct femtosecond laser writing

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posted on 2024-07-09, 22:10 authored by Ksenia Maximova, Xuewen Wang, Armandas Balčytis, Linpeng Fan, Jingliang Li, Saulius JuodkazisSaulius Juodkazis
Silk patterns in a film of amorphous water-soluble fibroin are created by tailored exposure to femtosecond-laser pulses (1030 nm/230 fs) without the use of photoinitiators. This shows that amorphous silk can be used as a negative tone photoresist. It is also shown that water insoluble crystalline silk films can be precisely ablated from a glass substrate achieving the patterns of crystalline silk gratings on a glass substrate. Bio-compatible/degradable silk can be laser structured to achieve conformational transformations as demonstrated by infrared spectroscopy.

Funding

ARC | DP130101205

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ISSN

1932-1058

Journal title

Biomicrofluidics

Volume

10

Issue

5

Article number

article no. 054101

Pagination

054101-

Publisher

AIP Publishing

Copyright statement

Copyright © 2016 AIP Publishing LLC. The published version is reproduced here in accordance with the copyright policy of the publisher. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Biomicrofluidics, Vol. 10, no. 5 and may be found at https://doi.org/10.1063/1.4962294.

Language

eng

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