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2010
SCI
Ye-C
SCI
2010
1
1
:
1.
Authors: Ye-C Kong-QC Wu-R Hu-JQ Chen-ZW Li-AQ
Title: SYNTHESIS AND ENHANCED ELECTROCHEMICAL PROPERTIES OF
POD-SHAPED GOLD/SILICA NANOPARTICLES
Full source: MATERIALS LETTERS 2010, Vol 64, Iss 15, pp 1720-1723
Language: English
Document type: Article
Addresses:
1 ) S-CHINA-UNIV-TECHNOL, COLL CHEM & CHEM ENGN, GUANGZHOU 510640,
GUANGDONG, PEOPLES-R-CHINA
2 ) S-CHINA-UNIV-TECHNOL, COLL MAT SCI & ENGN, GUANGZHOU 510640,
GUANGDONG, PEOPLES-R-CHINA
3 ) SO-MED-UNIV, EDUC MINIST PR CHINA, KEY LAB ORGAN FAILURE RES,
GUANGZHOU 510515, GUANGDONG, PEOPLES-R-CHINA
4 ) XIANGTAN-UNIV, MINIST EDUC, KEY LAB LOW DIMENS MAT & APPLICAT
TECHNOL, XIANGTAN 411105, PEOPLES-R-CHINA
5 ) WUHAN-UNIV-TECHNOL, STATE KEY LAB ADV TECHNOL MAT SYNTH &
PROC, WUHAN 430070, PEOPLES-R-CHINA
2012
3
21
Ye-C
SCI
(2010
)
SCI CDE with Abstracts (Jan 10 - Dec 10) (D4.0)
Record 1 of 1.
Authors: Ye-C Kong-QC Wu-R Hu-JQ Chen-ZW Li-AQ
Title: SYNTHESIS AND ENHANCED ELECTROCHEMICAL PROPERTIES OF
POD-SHAPED GOLD/SILICA NANOPARTICLES
Full source: MATERIALS LETTERS 2010, Vol 64, Iss 15, pp 1720-1723
Language: English
Document type: Article
IDS/Book No.: 623QB
No. Related Records: 20
No. cited references: 20
Addresses: S-CHINA-UNIV-TECHNOL, COLL CHEM & CHEM ENGN, GUANGZHOU
510640, GUANGDONG, PEOPLES-R-CHINA
S-CHINA-UNIV-TECHNOL, COLL MAT SCI & ENGN, GUANGZHOU 510640,
GUANGDONG, PEOPLES-R-CHINA
SO-MED-UNIV, EDUC MINIST PR CHINA, KEY LAB ORGAN FAILURE RES,
GUANGZHOU 510515, GUANGDONG, PEOPLES-R-CHINA
XIANGTAN-UNIV, MINIST EDUC, KEY LAB LOW DIMENS MAT &
APPLICAT TECHNOL, XIANGTAN 411105, PEOPLES-R-CHINA
WUHAN-UNIV-TECHNOL, STATE KEY LAB ADV TECHNOL MAT SYNTH &
PROC, WUHAN 430070, PEOPLES-R-CHINA
Author keywords: ELECTROCHEMISTRY; METAL AND SEMICONDUCTOR;
NANOMATERIALS; ROD SHAPE; SENSORS; SYNTHESIS
KeyWords Plus: DIRECT ELECTRON-TRANSFER; SILVER NANOPARTICLES;
MYOGLOBIN; NANOWIRES; NANORODS; METAL
Abstract: Pod-shaped gold/silica nanoparticles (PGSNPs) were prepared using perfluorooctanoic acid (PFOA) and cetyltrimethylammonium bromide (CTAB) as cotemplates.
The PGSNPs were utilized to explore a novel biosensor through coupling myoglobin (Mb) with chitosan (Chi). Compared with Mb-Chi-PSNPs (pod-shaped silica nanoparticles)/GC modified electrode. Mb-Chi-PGSNPs/GC electrode exhibited a pair of much stronger redox peaks at -0.28
V (vs. Ag/AgCl). Moreover, facilitated direct electron transfer of the metalloenzymes with smaller peak-to-peak separation (Delta Ep) of about 46 mV was acquired on the PGSNPs-based enzyme electrode. The PGSNPs-based biosensor demonstrated significant electrocatalytic activity for the reduction of hydrogen peroxide with a wide linear range (1-540 mu M) and high sensitivity (661 mA cm(-2) M-1). Together, the Mb-Chi-PGSNPs film is one of ideal candidate materials for direct electrochemistry of redox proteins, and may find potential applications in biomedical, food, and environmental analysis and detection. (C) 2010 Elsevier B.V. All rights reserved.
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