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

Jiaqi Guo, Ilari Filpponen, Ping Ping Su, Janne Laine, Orlando J. Rojas

    Research output: Contribution to journalArticleScientificpeer-review

    35 Citations (Scopus)

    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 zeta-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.
    Original languageUndefined/Unknown
    Pages (from-to)3065–3075
    Number of pages11
    JournalCellulose
    Volume23
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

    Keywords

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

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