Picosecond laser surface modification of aluminum oxide with fish-scale structures for cell culture

Zhao Chi Chen, Tien Li Chang, Cheng Che Liu, Wen Tse Hsiao, Chih Heng Huang

研究成果: 雜誌貢獻文章同行評審

6 引文 斯高帕斯(Scopus)

摘要

The surface modification of a layer substrate has received attention for many biomedical applications (e.g., tissue engineering and biosensing). Under an in situ control, we proposed a strategy for surface modification of hard and brittle ceramics with ultrafast laser pulses for cell culture. A type of ultrafast laser based on the picosecond pulse technique was employed to ablate the surface of a pristine aluminum oxide (Al2O3) substrate. The surface of the formed reproducible micro-nanostructures indicated the fish-scale structures, which was analyzed under different laser ablation conditions. Subsequently, the SV40 T-antigen human embryonic kidney 293 (HEK293T) cells were cultured on the laser-ablated Al2O3 substrates. These microstructures and nanostructures can enhance cell proliferation response. The surface effect played a crucial role, by which the surface roughness (Ra) and contact angle (CA) of water droplets on the ablated Al2O3 substrate increased with the increasing laser fluence. The formed fish-scale structures were formed by the parameters of laser ablation where the structural characteristics of the Al2O3 substrate can be remained in the ultrafast laser process. The presented process provides a simple support for developing ablated structures on the Al2O3 substrate for cell culture.
原文英語
頁(從 - 到)17651-17658
頁數8
期刊Ceramics International
46
發行號11
DOIs
出版狀態已發佈 - 8月 2020
對外發佈

ASJC Scopus subject areas

  • 電子、光磁材料
  • 陶瓷和複合材料
  • 製程化學與技術
  • 表面、塗料和薄膜
  • 材料化學

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