Electrochemical behavior of gold electrodes modified with self-assembled monolayers with an acidic end group for selective detection of dopamine Export

@article{citeulike:4120149, abstract = {Gold electrodes modified with monolayers with ionic end groups of different acidity and structure have been evaluated for the detection of dopamine. It has been demonstrated that the selectivity of monolayers depends not only on ionic charge but also on the nature of the ionic end group and defects in the monolayer. Catalytic effects due to the electrocatalytic oxidation of ascorbic acid by dopamine are present at the monolayer modified gold electrode. The angle resolved XPS (X-ray photoelectron spectroscopy) experiments demonstrate that the sulfonate group do not compete with thiol on binding the gold electrode. The capacitance measurements demonstrate that the capacitance depends on the length, end group type and defects present in monolayers.}, author = {Dalmia, A.}, citeulike-article-id = {4120149}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/S0022-0728(97)00223-4}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0022-0728(97)00223-4}, day = {30}, doi = {10.1016/S0022-0728(97)00223-4}, issn = {00220728}, journal = {Journal of Electroanalytical Chemistry}, keywords = {capacitance, cleaning, electrode, gold}, month = {June}, number = {1-2}, pages = {205--214}, posted-at = {2009-03-02 17:50:36}, priority = {2}, title = {Electrochemical behavior of gold electrodes modified with self-assembled monolayers with an acidic end group for selective detection of dopamine}, url = {http://dx.doi.org/10.1016/S0022-0728(97)00223-4}, volume = {430}, year = {1997} }

TY - JOUR ID - citeulike:4120149 L3 - citeulike-article-id:4120149 N2 - Gold electrodes modified with monolayers with ionic end groups of different acidity and structure have been evaluated for the detection of dopamine. It has been demonstrated that the selectivity of monolayers depends not only on ionic charge but also on the nature of the ionic end group and defects in the monolayer. Catalytic effects due to the electrocatalytic oxidation of ascorbic acid by dopamine are present at the monolayer modified gold electrode. The angle resolved XPS (X-ray photoelectron spectroscopy) experiments demonstrate that the sulfonate group do not compete with thiol on binding the gold electrode. The capacitance measurements demonstrate that the capacitance depends on the length, end group type and defects present in monolayers. IS - 1-2 JF - Journal of Electroanalytical Chemistry SN - 00220728 EP - 214 TI - Electrochemical behavior of gold electrodes modified with self-assembled monolayers with an acidic end group for selective detection of dopamine VL - 430 SP - 205 KW - capacitance KW - cleaning KW - electrode KW - gold AU - Dalmia, A PY - 1997/06/30/ UR - http://dx.doi.org/10.1016/S0022-0728(97)00223-4 ER -