利用近场增强超快激光对天然蚕丝进行微纳加工

Translated title of the contribution: Micro/nano processing of natural silk fibers with near-field enhanced ultrafast laser

Ming Qiao, Huimin Wang, Haojie Lu, Shuo Li, Jianfeng Yan, Liangti Qu, Yingying Zhang, Lan Jiang, Yongfeng Lu

Research output: Contribution to journalArticle

Abstract

Silkworm silk fiber is an attractive material owing to its remarkable mechanical characteristics, excellent optical properties, and good biocompatibility and biodegradability. However, nano-processing of the silk fiber is still a challenge limiting its applications in nanoengineering and related fields. Herein, we report localized near-field enhancement-assisted ablation with an ultrafast laser to break this bottleneck. Localized processing of silk fiber, including nano-holing, nano-grooving, and cutting could retain the key molecular structure building blocks and the pristine functionality of the silk fiber. An extremely narrow nanohole with a width of ∼64 nm was successfully achieved. The processed silk fiber can be used to transfer micro/nanoparticles and drugs, showing potential for biomedical engineering. The processing strategy developed in this study can also be extended to other materials, paving a new way for fabricating functional nanostructures with precisely controlled size and morphology.

Translated title of the contributionMicro/nano processing of natural silk fibers with near-field enhanced ultrafast laser
Original languageChinese
Pages (from-to)1300-1309
Number of pages10
JournalScience China Materials
Volume63
Issue number7
DOIs
StatePublished - Jul 1 2020

Keywords

  • drug delivery
  • laser ablation
  • nano-processing
  • silk fiber
  • ultrafast laser

ASJC Scopus subject areas

  • Materials Science(all)

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