Attachment of gold nanoparticles on cellulose nanofibrils via click reactions and electrostatic interactions

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Åbo Akademi University
  • North Carolina State University

Abstract

Hybrid materials based on cellulose nanofibrils (CNF) and gold nanoparticles (AuNPs) are synthesized and novel routes to couple AuNPs on the CNF surface are introduced. Quaternary ammonium, azido, alkyne and amino functional groups were used for the attachment of metal particles on the corresponding functionalized CNF (EPTMAC-CNF, Azido-CNF, Propargyl-CNF, Amino-CNF, respectively). The CNF-based supports were characterized by Fourier transform infrared spectroscopy and the surface charge was assessed by ζ-potential measurements. The AuNPs were attached on the functionalized CNF surface via either electrostatic interactions or click reactions. The obtained CNF/AuNPs hybrid materials were characterized using transmission electron microscopy (TEM) and inductively coupled plasma optical emission spectrometry. The obtained Bio-inorganic hybrid materials are potentially suitable for surface-enhanced Raman scattering, chemosensing and catalytic applications.

Details

Original languageEnglish
Pages (from-to)3065-3075
Number of pages11
JournalCellulose
Volume23
Issue number5
Publication statusPublished - 1 Oct 2016
MoE publication typeA1 Journal article-refereed

    Research areas

  • Bio- hybrid materials, Cationization, Cellulose nanofibrils, Click reactions, Gold nanoparticles

ID: 9394599