A graphene-conjugated oligomer hybrid probe for light-up sensing of lectin and Escherichia coli

Lihua Wang, Kan Yi Pu, Jing Li, Xiaoying Qi, Hai Li, Hua Zhang, Chunhai Fan*, Bin Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

146 Citations (Scopus)

Abstract

A water-soluble neutral fluorescent conjugated oligomer (FBT) is integrated with graphene oxide (GO) to form a hybrid nanoprobe with extremely low fluorescence background due to the robust quenching capability of GO. The contact between GO and FBT can be effectively shielded by Concanavalin A because of the strong specific protein-carbohydrate interaction, which ultimately allows for light-up visual detection of lectin and Escherichia coli.

Original languageEnglish
Pages (from-to)4386-4391
Number of pages6
JournalAdvanced Materials
Volume23
Issue number38
DOIs
Publication statusPublished - Oct 11 2011
Externally publishedYes

ASJC Scopus Subject Areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • conjugated oligomers
  • fluorescence detection
  • graphene oxide
  • light-up sensing

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