caa a22 4500 463218817 CHVBK 20180405153206.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1134/S1061934807060184 doi (NATIONALLICENCE)springer-10.1134/S1061934807060184 Carbon nanotube-modified electrodes for electrochemical DNA-sensors [Elektronische Daten] [T. Abdullin, I. Nikitina, D. Ishmukhametova, G. Budnikov, O. Konovalova, M. Salakhov] Glassy-carbon electrodes (GCEs) are modified with preoxidized multiwalled carbon nanotubes (CNTs). According to the data of atomic force microscopy, the layers of CNTs on GCEs possess a homogeneous nanostructurized surface. The voltammetric properties of a GCE/CNT depend on the modifier load. Guanine and deoxyguanosine monophosphate are strongly adsorbed on GCE/CNT and oxidized at +690 and +930 mV (pH 7.0), respectively. The oxidation current of guanine DNA nucleotides adsorbed on a GCE/CNT is significantly higher for the thermally denaturated biopolymer than for the native one. Our results are of interest for the development of sensors based on the electrochemical properties of nucleic acids. Pleiades Publishing, Ltd., 2007 Abdullin T. Department of Biology and Soil Science, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut Nikitina I. Department of Biology and Soil Science, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut Ishmukhametova D. Department of Biology and Soil Science, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut Budnikov G. Butlerov Institute of Chemistry, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut Konovalova O. Department of Physics, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut Salakhov M. Department of Physics, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut Journal of Analytical Chemistry Nauka/Interperiodica 62/6(2007-06-01), 599-603 1061-9348 62:6<599 2007 62 10809 https://doi.org/10.1134/S1061934807060184 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807060184 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abdullin T. Department of Biology and Soil Science, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut NATIONALLICENCE 700 1- Nikitina I. Department of Biology and Soil Science, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut NATIONALLICENCE 700 1- Ishmukhametova D. Department of Biology and Soil Science, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut NATIONALLICENCE 700 1- Budnikov G. Butlerov Institute of Chemistry, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut NATIONALLICENCE 700 1- Konovalova O. Department of Physics, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut NATIONALLICENCE 700 1- Salakhov M. Department of Physics, Kazan State University, ul. Kremlevskaya 18, 420008, Kazan, Tatarstan, Russia aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/6(2007-06-01), 599-603 1061-9348 62:6<599 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer