Red–Green–Blue Trichromophoric Nanoparticles with Dual Fluorescence Resonance Energy Transfer: Highly Sensitive Fluorogenic Response Toward Polyanions

Jinjia Xu, Atsuro Takai, Masayuki Takeuchi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

A red–green–blue (RGB) trichromophoric fluorescent organic nanoparticle exhibiting multi-colour emission was constructed; the blue-emitting cationic oligofluorene nanoparticle acted as an energy-donor scaffold to undergo fluorescence resonance energy transfer (FRET) to a red-emitting dye embedded in the nanoparticle (interior FRET) and to a green-emitting dye adsorbed on the surface through electrostatic interactions (exterior FRET). Each FRET event occurs independently and is free from sequential FRET, thus the resultant dual-FRET system exhibits multi-colour emission, including white, in aqueous solution and film state. A characteristic white-emissive nanoparticle showed visible responses upon perturbation of the exterior FRET efficiency by acceptor displacement, leading to highly sensitive responses toward polyanions in a ratiometric manner. Specifically, our system exhibits high sensitivity toward heparin with an extremely low detection limit.

Original languageEnglish
Pages (from-to)13014-13018
Number of pages5
JournalChemistry - A European Journal
Volume22
Issue number37
DOIs
Publication statusPublished - 2016 Sep 5
Externally publishedYes

Keywords

  • FRET
  • biosensors
  • multi-colour emission
  • nanoparticles
  • supramolecular assembly

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

Fingerprint

Dive into the research topics of 'Red–Green–Blue Trichromophoric Nanoparticles with Dual Fluorescence Resonance Energy Transfer: Highly Sensitive Fluorogenic Response Toward Polyanions'. Together they form a unique fingerprint.

Cite this