Fabrication of hollow channels surrounded by gold nanoparticles in hydrogel by femtosecond laser irradiation

Izumi Takayama, Akito Katayama, Mitsuhiro Terakawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The fabrication of hollow channels surrounded by gold nanoparticles in poly(ethylene glycol) diacrylate (PEGDA) is demonstrated. The absorption spectra show that gold nanoparticles were formed at the periphery of the focus by reduction of gold ions. The microscope observation and Raman spectroscopy analyses indicate that the center of the channels were void of PEGDA, which can be attributed to the femtosecond laser-induced degradation of the hydrogel. Since both the hydrogel and gold nanoparticles are biocompatible, this technique of fabricating hollow channels surrounded by gold nanoparticles is promising for tissue engineering, drug screening, and lab-on-a-chip devices.

Original languageEnglish
Article number2529
Pages (from-to)1-10
Number of pages10
JournalNanomaterials
Volume10
Issue number12
DOIs
Publication statusPublished - 2020 Dec

Keywords

  • Femtosecond laser
  • Gold nanoparticles
  • Hollow channel
  • Multiphoton reduction
  • PEGDA

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)

Fingerprint

Dive into the research topics of 'Fabrication of hollow channels surrounded by gold nanoparticles in hydrogel by femtosecond laser irradiation'. Together they form a unique fingerprint.

Cite this