Maximova Ksenia, Wang Xuewen, Balčytis Armandas, Fan Linpeng, Li Jingliang, Juodkazis Saulius
Center for Micro-Photonics, Swinburne University of Technology , John St., Hawthorn, Victoria 3122, Australia.
Australian Future Fibers Research and Innovation Centre, Institute for Frontier Materials, Deakin University , Geelong, Victoria 3220, Australia.
Biomicrofluidics. 2016 Sep 2;10(5):054101. doi: 10.1063/1.4962294. eCollection 2016 Sep.
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 photo-initiators. This shows that amorphous silk can be used as a negative tone photo-resist. 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.
通过定制飞秒激光脉冲(1030纳米/230飞秒)照射,无需使用光引发剂,即可在非晶态水溶性丝素蛋白薄膜中形成丝图案。这表明非晶态丝可作为负性光刻胶使用。还表明水不溶性结晶丝薄膜可从玻璃基板上精确烧蚀,从而在玻璃基板上实现结晶丝光栅图案。如红外光谱所示,生物相容性/可降解丝可通过激光结构化实现构象转变。