Nanostructured electrochemical sensor based on dense gold nanoparticle films

Aimin Yu; Zhijian Liang; Jinhan Cho; Frank Caruso

doi:10.1021/nl034363j

Nanostructured electrochemical sensor based on dense gold nanoparticle films

Aimin Yu, Zhijian Liang, Jinhan Cho, Frank Caruso

Research output: Contribution to journal › Article › peer-review

410 Citations (Scopus)

Abstract

Polyelectrolyte (PE)/gold nanoparticle hybrid films that can be utilized as efficient electrochemical sensors were prepared by infiltrating 4-(dimethylamino)pyridine-stabilized gold nanoparticles (DMAP-Au_NP) into PE multilayers preassembled on indium tin oxide (ITO) electrodes. Quartz crystal microgravimetry (QCM) and UV-vis spectroscopy showed that via this infiltration method, composite films with densely packed DMAP-Au_NP were obtained. Electrochemical experiments revealed that the presence of gold nanoparticles in the PE multilayers could significantly improve the electron-transfer characteristics of the films, which showed high electrocatalytic activity to the oxidation of nitric oxide (NO). The sensitivity of the composite films for measuring NO could be further tailored by controlling the gold nanoparticle loading in the film.

Original language	English
Pages (from-to)	1203-1207
Number of pages	5
Journal	Nano Letters
Volume	3
Issue number	9
DOIs	https://doi.org/10.1021/nl034363j
Publication status	Published - 2003 Sept 1
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1021/nl034363j

Cite this

@article{95d867593e77461b9287455e245741c5,

title = "Nanostructured electrochemical sensor based on dense gold nanoparticle films",

abstract = "Polyelectrolyte (PE)/gold nanoparticle hybrid films that can be utilized as efficient electrochemical sensors were prepared by infiltrating 4-(dimethylamino)pyridine-stabilized gold nanoparticles (DMAP-AuNP) into PE multilayers preassembled on indium tin oxide (ITO) electrodes. Quartz crystal microgravimetry (QCM) and UV-vis spectroscopy showed that via this infiltration method, composite films with densely packed DMAP-AuNP were obtained. Electrochemical experiments revealed that the presence of gold nanoparticles in the PE multilayers could significantly improve the electron-transfer characteristics of the films, which showed high electrocatalytic activity to the oxidation of nitric oxide (NO). The sensitivity of the composite films for measuring NO could be further tailored by controlling the gold nanoparticle loading in the film.",

author = "Aimin Yu and Zhijian Liang and Jinhan Cho and Frank Caruso",

year = "2003",

month = sep,

day = "1",

doi = "10.1021/nl034363j",

language = "English",

volume = "3",

pages = "1203--1207",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "9",

}

TY - JOUR

T1 - Nanostructured electrochemical sensor based on dense gold nanoparticle films

AU - Yu, Aimin

AU - Liang, Zhijian

AU - Cho, Jinhan

AU - Caruso, Frank

PY - 2003/9/1

Y1 - 2003/9/1

N2 - Polyelectrolyte (PE)/gold nanoparticle hybrid films that can be utilized as efficient electrochemical sensors were prepared by infiltrating 4-(dimethylamino)pyridine-stabilized gold nanoparticles (DMAP-AuNP) into PE multilayers preassembled on indium tin oxide (ITO) electrodes. Quartz crystal microgravimetry (QCM) and UV-vis spectroscopy showed that via this infiltration method, composite films with densely packed DMAP-AuNP were obtained. Electrochemical experiments revealed that the presence of gold nanoparticles in the PE multilayers could significantly improve the electron-transfer characteristics of the films, which showed high electrocatalytic activity to the oxidation of nitric oxide (NO). The sensitivity of the composite films for measuring NO could be further tailored by controlling the gold nanoparticle loading in the film.

AB - Polyelectrolyte (PE)/gold nanoparticle hybrid films that can be utilized as efficient electrochemical sensors were prepared by infiltrating 4-(dimethylamino)pyridine-stabilized gold nanoparticles (DMAP-AuNP) into PE multilayers preassembled on indium tin oxide (ITO) electrodes. Quartz crystal microgravimetry (QCM) and UV-vis spectroscopy showed that via this infiltration method, composite films with densely packed DMAP-AuNP were obtained. Electrochemical experiments revealed that the presence of gold nanoparticles in the PE multilayers could significantly improve the electron-transfer characteristics of the films, which showed high electrocatalytic activity to the oxidation of nitric oxide (NO). The sensitivity of the composite films for measuring NO could be further tailored by controlling the gold nanoparticle loading in the film.

UR - http://www.scopus.com/inward/record.url?scp=0141461374&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0141461374&partnerID=8YFLogxK

U2 - 10.1021/nl034363j

DO - 10.1021/nl034363j

M3 - Article

AN - SCOPUS:0141461374

SN - 1530-6984

VL - 3

SP - 1203

EP - 1207

JO - Nano Letters

JF - Nano Letters

IS - 9

ER -

Nanostructured electrochemical sensor based on dense gold nanoparticle films

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this