Functionalized Gold Nanoparticles for Facile Pattern-Controlled Surface Coatings

Jue Wang, Junfeng Liang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Gold nanoparticles (AuNPs) have been widely investigated as surface modifiers; nevertheless, most methods still require the pretreatment of surfaces and several steps to control coating efficiency and patterns for improved functionality. We developed functionalized AuNPs through borate-protected dopamine (B-AuNPs). The simple activation of B-AuNPs with a strong acid to remove the protected borate groups produces adhesive dopamine AuNPs (D-AuNPs). D-AuNP-coated surfaces with varied but controlled features and properties such as coating density and surface pattern were achieved using D-AuNPs with a precisely controlled dopamine density and coating conditions. Such adhesive and easily manipulated AuNPs provide a facile and time-saving technology to achieve sophisticated surface coatings using AuNPs.

Original languageEnglish
Article number146
JournalBiomimetics
Volume9
Issue number3
DOIs
StatePublished - Mar 2024

Keywords

  • adhesive nanoparticles
  • dopamine
  • gold nanoparticles
  • patterned coating

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