Interaction of metal ions and DNA films on gold surfaces: an electrochemical impedance study
文献情報
Xiaomin Bin, Heinz-Bernhard Kraatz
Electrochemical impedance spectroscopy (EIS) has been used to investigate the effects of a number of metal ions with DNA films on gold surfaces exploiting [Fe(CN)6]3−/4− as a solution-based redox probe. Alkaline earth metal ions Mg2+, Ca2+, trivalent Al3+, La3+ and divalent transition metal ions Ni2+, Cu2+, Cd2+ and Hg2+ have been selected in this study and the results are compared with previous studies on the effects of Zn2+ on the EIS of DNA films. All experimental results were evaluated with the help of equivalent circuits which allowed the extraction of resistive and capacitive components. For all metal ions studied here, addition of the metal ions causes a decrease in the charge transfer resistance. The difference of charge transfer resistance (ΔRct) of ds-DNA films in the presence and absence of the various metal ions is different and particular to any given metal ion. In addition, we studied the EIS of ds-DNA films containing a single A–C mismatch in the presence and absence of Ca2+, Zn2+, Cd2+ and Hg2+. ΔRct values for ds-DNA films with a single A–C mismatch is smaller than those of fully matched ds-DNA films.
関連文献
IF 6.367
The dilemma between acid and base catalysis in the synthesis of benzimidazole from o-phenylenediamine and carbon dioxide‡IF 6.222
Transition metal chemistry in synthetically viable alkaline earth complexes M(Cp)3− (M = Ca, Sr, Ba)IF 6.222
Electrocatalytic cleavage of lignin model dimers using ruthenium supported on activated carbon clothIF 6.367
An improved fluorescent protein-based expression reporter system that utilizes bioluminescence resonance energy transfer and peptide-assisted complementationIF 6.222
A model-based comparison of Ru and Ni catalysts for the Sabatier reactionIF 6.367
Catalogue of self-targeting nano-medical inventions to accelerate clinical trialsIF 6.843
Interfacial engineering of a polymer–MOF composite by in situ vitrificationIF 6.222
Mechanism of lignocellulose modification and enzyme disadsorption for complete biomass saccharification to maximize bioethanol yield in rapeseed stalksIF 6.367
Cu2ZnSnS4 nanocrystals for microwave thermal and microwave dynamic combination tumor therapyIF 6.222
掲載誌
Analyst
Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.
おすすめ化合物
おすすめサプライヤー
デḢ Ao ジアタイ 化学 科技 有限公司山東魯西動物藥品株式有限公司
E. Georg Lüdecke Armaturen GmbH偃師市東園化學工業有限公司安徽黄山市嘉徽医药化工有限责任Macylab Instruments Inc.上海菱晓貿易有限公司上海カーンメディカルテクノロジーカンパニー諸城泰盛化工股份有限公司上海晟铱バイオテクノロジーカンパニー