Glycine crystallization in solution by CW laser-induced microbubble on gold thin film surface

Takayuki Uwada*, Sho Fujii, Sugiyama Teruki, Anwar Usman, Atsushi Miura, Hiroshi Masuhara, Katsuhiko Kanaizuka, Masa Aki Haga

*Corresponding author for this work

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

We have developed a novel laser-induced crystallization method utilizing local heat-induced bubble/water interface. Continuous laser beam of 1064 nm is focused on a gold nanoparticles thin film surface covered with glycine supersaturated aqueous solution. Light absorption of the film due to localized plasmon resonance caused local heating at the focal position and produced a single thermal vapor microbubble, which generated thermal gradient followed by convection flow around the bubble and eventually induced glycine crystallization and growth. The crystallization mechanism is discussed by considering gathering and accumulating molecules around the bubble/water interface assisted by convection flow and temperature jump.

Original languageEnglish
Pages (from-to)1158-1163
Number of pages6
JournalACS Applied Materials and Interfaces
Volume4
Issue number3
DOIs
StatePublished - 28 Mar 2012

Keywords

  • convection flow
  • crystallization
  • glycine
  • gold thin film
  • laser-heating
  • vapor bubble

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