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In situ synthesis of thulium(III) hexacyanoferrate(II) nanoparticles and its application for glucose detection.

Identifieur interne : 000453 ( PubMed/Corpus ); précédent : 000452; suivant : 000454

In situ synthesis of thulium(III) hexacyanoferrate(II) nanoparticles and its application for glucose detection.

Auteurs : Zuchao Meng ; Jianbin Zheng ; Qinglin Sheng ; Xiaohui Zheng

Source :

RBID : pubmed:21338755

English descriptors

Abstract

Thulium hexacyanoferrate (TmHCF) nanoparticles (NPs) were in situ synthesized within the chitosan film on the electrode surface by a biocatalyzed reaction. The properties of the obtained nanoparticles are characterized with scanning electron microscope (SEM) and energy-dispersive X-ray (EDX). The optimized conditions for the formation of TmHCF NPs were 16 mM Fe(CN)(6)(3-) and 1.5 mM Tm(3+) with an accumulation time of 20 min. Based on process of in situ synthesis of TmHCF NPs, a novel biosensor for glucose was designed, and there is a linear relationship between the current response of TmHCF NPs and glucose concentration. The linear range for glucose detection was 0.02-0.4 mM (r=0.9975, n=5) and 0.4-13.6 mM (r=0.9935, n=10) and the detection limit was 6 μM at a signal-to-noise ratio of 3.

DOI: 10.1016/j.aca.2011.01.028
PubMed: 21338755

Links to Exploration step

pubmed:21338755

Le document en format XML

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