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Biotemplated Synthesis of Gold Nanoparticle–Bacteria Cellulose Nanofiber Nanocomposites and Their Application in Biosensing

Zhang, Taiji, Wang, Wei, Zhang, Dayong, Zhang, Xinxiang, Ma, Yurong, Zhou, Yinglin, Qi, Limin·2010·Advanced Functional Materials

Abstract

Bacteria cellulose (BC) nanofibers are used as robust biotemplates for the facile fabrication of novel gold nanoparticle (NP)–bacteria cellulose nanofiber (Au–BC) nanocomposites via a one‐step method. The BC nanofibers are uniformly coated with Au NPs in aqueous suspension using poly(ethyleneimine) (PEI) as the reducing and linking agent. With the addition of different halides, Au–BC nanocomposites with different Au shell thicknesses are formed, and a possible formation mechanism is proposed by taking into account the special role played by PEI. A novel H 2 O 2 biosensor is constructed using the obtained Au–BC nanocomposites as excellent support for horseradish peroxidase (HRP) immobilization, which allows the detection of H 2 O 2 with a detection limit lower than 1 µ M. The Au–BC nanocomposites could be further used for the immobilization of many other enzymes, and thus, may find potential applications in bioelectroanalysis and bioelectrocatalysis.

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Metadata

Authors
Zhang, T., Wang, W., Zhang, D., Zhang, X., Ma, Y., Zhou, Y., & Qi, L.
Venue
Advanced Functional Materials
Publisher
Wiley
Published
2010-03-29
Volume
20
Issue
7
Pages
1152-1160
ISSN
  • 1616-301X (ISSN-L)
  • 1616-3028
OpenAlex
W2120520694
Cited by
365
References
0
FWCI
5.98
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Biotemplated Synthesis of Gold Nanoparticle–Bacteria Cellulose Nanofiber Nanocomposites and Their Application in Biosensing. https://app.cochat.ai/papers/10.1002/adfm.200902104
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Zhang, T., Wang, W., Zhang, D., Zhang, X., Ma, Y., Zhou, Y., & Qi, L. (2010). Biotemplated Synthesis of Gold Nanoparticle–Bacteria Cellulose Nanofiber Nanocomposites and Their Application in Biosensing. Advanced Functional Materials. https://doi.org/10.1002/adfm.200902104

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