Femtosecond laser direct writing of metal microstructure in a stretchable poly(ethylene glycol) diacrylate (PEGDA) hydrogel

Mitsuhiro Terakawa, Maria Leilani Torres-Mapa, Akihiro Takami, Dag Heinemann, Nikolay N. Nedyalkov, Yasutaka Nakajima, Anton Hördt, Tammo Ripken, Alexander Heisterkamp

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The fabrication of three-dimensional (3D) metal microstructures in a synthetic polymer-based hydrogel is demonstrated by femtosecond laser-induced photoreduction. The linear-shaped silver structure of approximately 2 micrometers in diameter is fabricated inside a biocompatible poly(ethylene glycol) diacrylate (PEGDA) hydrogel. The silver structure is observed and confirmed by scanning electron microscopy (SEM) and elemental analysis using energy-dispersive X-ray spectroscopy (EDX). Shrinking and swelling of the fabricated structure is also demonstrated experimentally, which shows the potential of the present method for realizing 3D flexible electronic and optical devices, as well as for fabricating highly integrated devices at submicron scales.

Original languageEnglish
Pages (from-to)1392-1395
Number of pages4
JournalOptics Letters
Volume41
Issue number7
DOIs
Publication statusPublished - 2016 Apr 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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