Abstract
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.
Original language | English |
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Article number | 054101 |
Journal | Biomicrofluidics |
Volume | 10 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 Sept 2016 |
Externally published | Yes |