Imaging resolution of biocatalytic activity using nanoscale scanning electrochemical microscopy

被引：7

作者：

Abad, Jose M. ^{[1
]}

Tesio, Alvaro Y. ^{[2
]}

Martinez-Perinan, Emiliano ^{[1
]}

Pariente, Felix ^{[1
]}

Lorenzo, Encarnacion ^{[1
,3
]}

机构：

[1] Univ Autonoma Madrid, Dept Quim Analit & Anal Instrumental, E-28049 Madrid, Spain

[2] Univ Nacl Jujuy, CONICET, Ctr Invest & Desarrollo Mat Avanzados & Almacenam, Ctr Desarrollo Tecnol Gen Savio, Ave Martijena S-N, RA-4612 Palpala, Jujuy, Argentina

[3] IMDEA Nanociencia, Campus UAM, Madrid 28049, Spain

来源：

NANO RESEARCH | 2018年 / 11卷 / 08期

关键词：

scanning electrochemical microscopy; gold nanoparticle; redox enzyme; nanoelectrode; lactate oxidase; NANOMETER-SIZED ELECTRODES; SELF-ASSEMBLED MONOLAYERS; LACTATE OXIDASE; GLUCOSE-DEHYDROGENASE; METAL NANOPARTICLES; PLATINUM-ELECTRODES; SINGLE MOLECULES; FABRICATION; SURFACES; NANOELECTRODES;

D O I：

10.1007/s12274-018-2011-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Scanning electrochemical microscopy represents a powerful tool for electro(chemical) characterization of surfaces, but its applicability has been limited in most cases at microscale spatial resolution, and the greatest challenge has been the scaling down to the nanoscale for fabrication and the use of nanometer-sized tips. Here, Pt nanoelectrodes with nanometer electroactive area were fabricated and employed for imaging a distribution of gold nanoparticles (AuNPs) and bioelectrocatalytic activity of a redox-active enzyme immobilized on gold surfaces.

引用

页码：4232 / 4244

页数：13

共 58 条

[1] Patterning Gold Nanoparticle Using Scanning Electrochemical Microscopy [J].

Abad, Jose M. ;

Tesio, Alvaro Y. ;

Pariente, Felix ;

Lorenzo, Encarnacion .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (42) :22087-22093

[2] Combination of Scanning Electron Microscopy in the Characterization of a Nanometer-Sized Electrode and Current Fluctuation Observed at a Nanometer-Sized Electrode [J].

Agyekum, Isaac ;

Nimley, Christopher ;

Yang, Chenxi ;

Sun, Peng .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (35) :14970-14974

[3] Controlling local disorder in self-assembled monolayers by patterning the topography of their metallic supports [J].

Aizenberg, J ;

Black, AJ ;

Whitesides, GM .

NATURE, 1998, 394 (6696) :868-871

[4] Nanoelectrodes, nanoelectrode arrays and their applications [J].

Arrigan, DWM .

ANALYST, 2004, 129 (12) :1157-1165

[5] EFFECTIVE INSULATION OF SCANNING-TUNNELING-MICROSCOPY TIPS FOR ELECTROCHEMICAL STUDIES USING AN ELECTROPAINTING METHOD [J].

BACH, CE ;

NICHOLS, RJ ;

BECKMANN, W ;

MEYER, H ;

SCHULTE, A ;

BESENHARD, JO ;

JANNAKOUDAKIS, PD .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (05) :1281-1284

[6] Imaging concentration profiles of redox-active species with nanometric amperometric probes: Effect of natural convection on transport at microdisk electrodes [J].

Baltes, N ;

Thouin, L ;

Amatore, C ;

Heinze, J .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (11) :1431-1435

[7] Electrochemical detection of single molecules [J].

Bard, AJ ;

Fan, FRF .

ACCOUNTS OF CHEMICAL RESEARCH, 1996, 29 (12) :572-578

[8] SCANNING ELECTROCHEMICAL MICROSCOPY - INTRODUCTION AND PRINCIPLES [J].

BARD, AJ ;

FAN, FRF ;

KWAK, J ;

LEV, O .

ANALYTICAL CHEMISTRY, 1989, 61 (02) :132-138

[9] Self-assembled gold nanoparticle thin films with nonmetallic optical and electronic properties [J].

Brust, M ;

Bethell, D ;

Kiely, CJ ;

Schiffrin, DJ .

LANGMUIR, 1998, 14 (19) :5425-5429

[10] Electrochemical characterization of electrodes with submicrometer dimensions [J].

Conyers, JL ;

White, HS .

ANALYTICAL CHEMISTRY, 2000, 72 (18) :4441-4446

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