Dual fluorescent labelling of cellulose nanocrystals for pH sensing.
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.
CelCom, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.
Lise Junker
LJ
Nielsen
Samuel
S
Eyley
Wim
W
Thielemans
Jonathan W
JW
Aylott
D000588:Amines / Q000737:chemistry; D015374:Biosensing Techniques; D002482:Cellulose / Q000737:chemistry; D004951:Esterification; D005456:Fluorescent Dyes / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D017879:Isothiocyanates / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013438:Sulfhydryl Compounds / Q000737:chemistry
D000588:Amines; D005456:Fluorescent Dyes; D017879:Isothiocyanates; D013438:Sulfhydryl Compounds; D002482:Cellulose