کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10275988 | 463412 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-assembly of 6-thioguanine and 6-thioguanosine monolayers on the mercury electrode: effects of oxygen and applied potential
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The formation of self-assembled monolayers (SAMs) of 6-thioguanine and 6-thioguanosine on mercury from deaerated and air-saturated aqueous solutions has been studied. The self-assembly process was investigated using chronoamperometry, cyclic voltammetry and open circuit potential (ocp) measurements. The presence of dissolved oxygen is a necessary condition for the formation of full SAMs on a hanging mercury drop electrode (HMDE) at ocp. In the absence of oxygen, the formation of such SAMs requires application of an appropriate potential to the HMDE during a certain period of time. The effects of oxygen and applied potential are explained on the basis of the charge-transfer reaction involved in the self-assembly process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 575, Issue 2, 1 February 2005, Pages 243-248
Journal: Journal of Electroanalytical Chemistry - Volume 575, Issue 2, 1 February 2005, Pages 243-248
نویسندگان
Zoraida González Arias, Jesús Luis Muñiz Álvarez, Juan Miguel López Fonseca,