Highly Tunable Growth and Etching of Silica Shells on Surfactant-Free Gold Nanostars

Supriya Atta, Sylvie Rangan, Laura Fabris

Research output: Contribution to journalArticle

1 Citation (Scopus)


Herein, we report an efficient method to coat gold nanostars with a silica shell of variable thickness and then tunably etch it by using a mild silica etching reagent, NaBH4. This method generates a novel type of nanostar coating in which silica only covers the core, leaving the tips variably exposed.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
Issue number1
Publication statusPublished - Jan 1 2020



  • NaBH
  • gold nanostars
  • silica etched

ASJC Scopus subject areas

  • Biomaterials
  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Materials Chemistry

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