2006
DOI: 10.1021/la0518804
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Gold Film Surface Preparation for Self-Assembled Monolayer Studies

Abstract: Evaporated gold films are frequently used as substrates for the study of biomolecular adsorbates, nanoparticle systems, amd partial and full monolayer films. These studies often benefit from a predeposition cleaning of the surface that removes adventitiously adsorbed material from laboratory contaminants. Scanning tunneling microscopy (STM) is used in this study to explore the microscopic consequences of two pretreatment protocols used in literature reports of self-assembled monolayers, based on sulfochromic a… Show more

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Cited by 56 publications
(50 citation statements)
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“…The successful deposition of alkanethiol SAMs requires the gold substrates to be freshly cleaned by, for example, annealing in a hydrogen-oxygen flame [6], or by exposure to UV/ozone [7][8][9][10][11], or by treatment with a cleaning solution [12][13][14][15][16][17]. For the deposition of a monolayer, the cleaned substrate is immersed in an ethanolic solution of the thiol, rinsed (ethanol), dried (nitrogen) and used immediately [5].…”
Section: Introductionmentioning
confidence: 99%
“…The successful deposition of alkanethiol SAMs requires the gold substrates to be freshly cleaned by, for example, annealing in a hydrogen-oxygen flame [6], or by exposure to UV/ozone [7][8][9][10][11], or by treatment with a cleaning solution [12][13][14][15][16][17]. For the deposition of a monolayer, the cleaned substrate is immersed in an ethanolic solution of the thiol, rinsed (ethanol), dried (nitrogen) and used immediately [5].…”
Section: Introductionmentioning
confidence: 99%
“…[1][2][3][4][5][6][7][8][9] In chemical sensors and biosensors, pretreatment plays a crucial role in improving the reproducibility of electrochemical data. Pretreatment methods of metal electrodes such as gold and platinum electrodes have been widely studied.…”
Section: Introductionmentioning
confidence: 99%
“…The methods include mechanical polishing, 1 thermal treatment, 2,3 electrochemical treatment, [4][5][6] and Piranha treatment. 6,7 However, the effect of pretreatment methods on indium-tin oxide (ITO) electrodes has been rarely investigated, although many pretreatment methods have been employed to clean ITO electrodes. [10][11][12][13][14][15][16][17][18][19][20] Recently, the authors studied the effect of thermal treatment on the electrocatalytic activities and surface roughness of ITO electrodes: the electrocatalytic activities and surface roughness of ITO electrodes increase with increasing the incubation temperature.…”
Section: Introductionmentioning
confidence: 99%
“…In general, this fine-tuning has been carried out via thermal, chemical, or electrochemical treatment of electrodes. [6][7][8][9][10][11] Although many treatment methods for the fine-tuning of metal electrodes, [6][7][8][9][10][11] carbon-based electrodes, 12) and boron-doped diamond electrodes 13) have been developed, those of ITO electrodes have been far less studied. 14) In particular, there is no report for tuning the electrocatalytic activities of ITO electrodes via thermal treatment.…”
Section: Introductionmentioning
confidence: 99%