Dual fluorescent labelling of cellulose nanocrystals for pH sensing

Chem Commun (Camb). 2010 Dec 21;46(47):8929-31. doi: 10.1039/c0cc03470c. Epub 2010 Nov 2.

Abstract

Cellulose nanocrystals were converted into ratiometric pH-sensing nanoparticles by dual fluorescent labelling employing a facile one-pot procedure. A simple and versatile three-step procedure was also demonstrated extending the number of fluorophores available for grafting. In this method an amine group was introduced via esterification followed by a thiol-ene click reaction.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amines / chemistry
  • Biosensing Techniques
  • Cellulose / chemistry
  • Esterification
  • Fluorescent Dyes / chemistry*
  • Hydrogen-Ion Concentration
  • Isothiocyanates / chemistry
  • Nanoparticles / chemistry*
  • Spectrometry, Fluorescence
  • Sulfhydryl Compounds / chemistry

Substances

  • Amines
  • Fluorescent Dyes
  • Isothiocyanates
  • Sulfhydryl Compounds
  • Cellulose