Multiwalled Carbon Nanotubes Incorporated with Dendrimer Encapsulated with Pt Nanoparticles: An Attractive Material for Sensitive Biosensors

Multiwalled Carbon Nanotubes Incorporated with Dendrimer Encapsulated with Pt Nanoparticles: An Attractive Material for Sensitive Biosensors

Dendrimer encapsulated Pt nanoparticles (Pt-DENs) with a diameter of 2–3 nm were used in combination with multiwalled carbon nanotubes (MWCNTs) for fabricating electrochemical sensors with remarkably improved sensitivity toward glucose. TEM images illustrated the deposition of Pt-DENs on carbon nano...

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Veröffentlicht in:Chemistry letters 2006-03, Vol.35 (3), p.326-327
Hauptverfasser: Zhu, Huiyu, Zhu, Yihua, Yang, Xiaoling, Li, Chunzhong
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container_title Chemistry letters
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creator Zhu, Huiyu
Zhu, Yihua
Yang, Xiaoling
Li, Chunzhong
description Dendrimer encapsulated Pt nanoparticles (Pt-DENs) with a diameter of 2–3 nm were used in combination with multiwalled carbon nanotubes (MWCNTs) for fabricating electrochemical sensors with remarkably improved sensitivity toward glucose. TEM images illustrated the deposition of Pt-DENs on carbon nanotubes whereas cyclic voltammetry (CV) confirmed an electrical contact through MWCNTs between Pt-DENs and electrode. And the MWCNTs incorporated with Pt-DENs modifying Pt/GOx elelctrode-based biosensors response more sensitively to glucose than the electrode modified with MWCNTs alone reported by others. The response time and detection limit of this biosensor was determined to be 5 s, and 2.5 μM, respectively.
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title Multiwalled Carbon Nanotubes Incorporated with Dendrimer Encapsulated with Pt Nanoparticles: An Attractive Material for Sensitive Biosensors
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