Artificial surface-modified Si3N4 nanopores for single surface-modified gold nanoparticle scanning

Yann Astier, Lucien Datas, Randy Carney, Francesco Stellacci, Francesco Gentile, Enzo Difabrizio

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

Si3N4 nanopores functionalized with 4-4 bipyridyl, 3.2-6.5 nm in diameter and 30-50 nm in length, are shown to interact with single, negatively charged, coated gold nanoparticles from 2.4 to 8.9 nm diameter. It is possible to detect the interactions through alterations in the ionic current, whether or not the electric-field driven nanoparticle threads through the pore.

Original languageEnglish (US)
Pages (from-to)455-459
Number of pages5
JournalSmall
Volume7
Issue number4
DOIs
StatePublished - Feb 18 2011
Externally publishedYes

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Keywords

  • artificial nanopore
  • gold nanoparticle
  • single molecule detection
  • surface modification

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Engineering (miscellaneous)

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