Application Progress of Nanoporous Gold in Analytical Chemistry

Li-Tuo ZHENG; Yu-Lei WEI; He-Qing GONG; Lei QIAN

doi:10.3724/sp.j.1096.2013.20797

Application Progress of Nanoporous Gold in Analytical Chemistry

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY (CHINESE VERSION) ◽

10.3724/sp.j.1096.2013.20797 ◽

2013 ◽

Vol 41 (1) ◽

pp. 137 ◽

Cited By ~ 2

Author(s):

Li-Tuo ZHENG ◽

Yu-Lei WEI ◽

He-Qing GONG ◽

Lei QIAN

Keyword(s):

Analytical Chemistry ◽

Nanoporous Gold

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Nanoporous Gold Electrodes and Their Applications in Analytical Chemistry

ISRN Analytical Chemistry ◽

10.1155/2013/692484 ◽

2013 ◽

Vol 2013 ◽

pp. 1-21 ◽

Cited By ~ 57

Author(s):

Maryanne M. Collinson

Keyword(s):

Analytical Chemistry ◽

Surface Area ◽

Chemical Sensors ◽

High Surface ◽

High Surface Area ◽

Pore Network ◽

Nanoporous Gold ◽

Dna Sensors ◽

Porous Framework ◽

Surface Areas

Nanoporous gold prepared by dealloying Au:Ag alloys has recently become an attractive material in the field of analytical chemistry. This conductive material has an open, 3D porous framework consisting of nanosized pores and ligaments with surface areas that are 10s to 100s of times larger than planar gold of an equivalent geometric area. The high surface area coupled with an open pore network makes nanoporous gold an ideal support for the development of chemical sensors. Important attributes include conductivity, high surface area, ease of preparation and modification, tunable pore size, and a bicontinuous open pore network. In this paper, the fabrication, characterization, and applications of nanoporous gold in chemical sensing are reviewed specifically as they relate to the development of immunosensors, enzyme-based biosensors, DNA sensors, Raman sensors, and small molecule sensors.

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