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Label-free detection of DNA hybridization at a liquid|liquid interfaceстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Vagin Mikhail Yu, Trashin Stanislav A., Karyakin Arkady A., Mascini Marco
- Журнал: Analytical Chemistry
- Том: 80
- Номер: 4
- Год издания: 2008
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 1336
- Последняя страница: 1340
- DOI: 10.1021/ac701923c
- Аннотация: A novel electrochemical approach for label-free detection of DNA primary sequence has been proposed. The flow of nonelectroactive ions across a liquid|liquid interface was used as an electrochemical probe for detection of DNA hybridization. Disposable graphite screen-printed electrodes shielded with a thin layer of inert polymer plasticized with water-immiscible polar organic solvent were modified by probe oligonucleotide and used as a DNA sensor. The specific DNA coupling has been detected with impedance spectroscopy by decrease of ion-transfer resistance. The detection limit was of 10(-8) M of target oligonucleotide. The reported sensor was suitable for discrimination of a single mismatch oligonucleotide from the full complementary one. The reported DNA sensor was advantageous over known physicochemical approaches, providing the most significant changes in the measured parameters.
- Добавил в систему: Карякин Аркадий Аркадьевич