Electrochemical impedance spectroscopy of single-stranded and double-helical polynucleotides
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14330%2F00%3A00004092" target="_blank" >RIV/00216224:14330/00:00004092 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Electrochemical impedance spectroscopy of single-stranded and double-helical polynucleotides
Original language description
The dependence of the impedance of the electrode double layer on time and frequency around the potentials of the tensammetric peaks and around the potential of maximum adsorption of single-stranded and double-helical polyadenylic acid (poly A) and DNA was studied. At room temperature the single stranded poly A (pH 8) yields a high tensammetric peak at about -1.4 V vs.SCE. The peak is higher and narrower at low ionic strengths. The height of the peak decreases with increasing frequency at low ionic strengths while it is almost independent on the frequency at higher ionic strengths. With double-helical (native ) DNA only one desorption maximum is observed on the C-E curves, single-stranded (denatured) DNA yields two maxima. It was shown by Miller and later by Palecek that the more positive desorption peak at -1.15 V yielded both by the native and denatured DNA corresponds to the desorption of the sugar - phospate backbone. The more negative peak at -1.4 V which yields only denatured DNA
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BO - Biophysics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2000
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Book of Abstracts, J.Heyrovský Memorial Symposium, Praha
ISBN
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ISSN
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e-ISSN
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Number of pages
1
Pages from-to
5
Publisher name
Ústav fyzikální chemie J.Heyrovského, AV ČR
Place of publication
Praha
Event location
Praha
Event date
Jan 1, 2000
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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