Multifunctionalization of organosilanes on submicron-sized island-type electrodes for the selective detection of metal ions

Younghun Kim; Inhee Choi; Sung Koo Kang; Jeongjin Lee; Jongheop Yi

doi:10.1063/1.2162675

Multifunctionalization of organosilanes on submicron-sized island-type electrodes for the selective detection of metal ions

Younghun Kim, Inhee Choi, Sung Koo Kang, Jeongjin Lee, Jongheop Yi

Department of Life Science

Seoul National University

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

12 Scopus citations

Abstract

A submicron-sized metal ion detector with two electrodes was fabricated by atomic force microscopy lithography. Two detection zones were functionalized with thiol (-SH) and amine (-NH₂) groups, which have a high affinity for mercury and copper, respectively. Conductance with metal adsorption was measured by the forced contact of the tip (mobile electrode) with the gold-deposited center (fixed electrode) at a constant repulsive force (38 nN). In Cu²⁺/Hg²⁺ binary solutions, one electrode (thiol group) showed a high affinity for mercury, and the other for copper. This two-electrode system immobilized with different functional groups was used in the selective adsorption and detection of target materials.

Original language	English
Article number	013113
Journal	Applied Physics Letters
Volume	88
Issue number	1
DOIs	https://doi.org/10.1063/1.2162675
State	Published - 2006

Access to Document

10.1063/1.2162675

Cite this

@article{6e6387ad91344e4faf38ac92c7789095,

title = "Multifunctionalization of organosilanes on submicron-sized island-type electrodes for the selective detection of metal ions",

abstract = "A submicron-sized metal ion detector with two electrodes was fabricated by atomic force microscopy lithography. Two detection zones were functionalized with thiol (-SH) and amine (-NH2) groups, which have a high affinity for mercury and copper, respectively. Conductance with metal adsorption was measured by the forced contact of the tip (mobile electrode) with the gold-deposited center (fixed electrode) at a constant repulsive force (38 nN). In Cu2+/Hg2+ binary solutions, one electrode (thiol group) showed a high affinity for mercury, and the other for copper. This two-electrode system immobilized with different functional groups was used in the selective adsorption and detection of target materials.",

author = "Younghun Kim and Inhee Choi and Kang, {Sung Koo} and Jeongjin Lee and Jongheop Yi",

year = "2006",

doi = "10.1063/1.2162675",

language = "English",

volume = "88",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "1",

}

TY - JOUR

T1 - Multifunctionalization of organosilanes on submicron-sized island-type electrodes for the selective detection of metal ions

AU - Kim, Younghun

AU - Choi, Inhee

AU - Kang, Sung Koo

AU - Lee, Jeongjin

AU - Yi, Jongheop

PY - 2006

Y1 - 2006

N2 - A submicron-sized metal ion detector with two electrodes was fabricated by atomic force microscopy lithography. Two detection zones were functionalized with thiol (-SH) and amine (-NH2) groups, which have a high affinity for mercury and copper, respectively. Conductance with metal adsorption was measured by the forced contact of the tip (mobile electrode) with the gold-deposited center (fixed electrode) at a constant repulsive force (38 nN). In Cu2+/Hg2+ binary solutions, one electrode (thiol group) showed a high affinity for mercury, and the other for copper. This two-electrode system immobilized with different functional groups was used in the selective adsorption and detection of target materials.

AB - A submicron-sized metal ion detector with two electrodes was fabricated by atomic force microscopy lithography. Two detection zones were functionalized with thiol (-SH) and amine (-NH2) groups, which have a high affinity for mercury and copper, respectively. Conductance with metal adsorption was measured by the forced contact of the tip (mobile electrode) with the gold-deposited center (fixed electrode) at a constant repulsive force (38 nN). In Cu2+/Hg2+ binary solutions, one electrode (thiol group) showed a high affinity for mercury, and the other for copper. This two-electrode system immobilized with different functional groups was used in the selective adsorption and detection of target materials.

UR - http://www.scopus.com/inward/record.url?scp=33645533437&partnerID=8YFLogxK

U2 - 10.1063/1.2162675

DO - 10.1063/1.2162675

M3 - Article

AN - SCOPUS:33645533437

SN - 0003-6951

VL - 88

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 1

M1 - 013113

ER -

Multifunctionalization of organosilanes on submicron-sized island-type electrodes for the selective detection of metal ions

Abstract

Access to Document

Other files and links

Fingerprint

Cite this