Carbon nanotube-modified electrodes for electrochemical DNA-sensors

被引：12
|
作者：
Abdullin, T. I.
Nikitina, I. I.
Ishmukhametova, D. G.
Budnikov, G. K.
Konovalova, O. A.
Salakhov, M. Kh.
机构：
[1] Kazan VI Lenin State Univ, Dept Biol & Soil Sci, Kazan 420008, Tatarstan, Russia
[2] Kazan VI Lenin State Univ, Butlerov Inst Chem, Kazan 420008, Tatarstan, Russia
[3] Kazan VI Lenin State Univ, Dept Phys, Kazan 420008, Tatarstan, Russia
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2007年 / 62卷 / 06期
关键词：
D O I：
10.1134/S1061934807060184
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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.
引用
收藏
页码：599 / 603
页数：5
相关论文
共 50 条
  • [31] Square wave voltammetry determination of brucine at multiwall carbon nanotube-modified glassy carbon electrodes
    Wang, SF
    Xu, Q
    ANALYTICAL LETTERS, 2005, 38 (04) : 657 - 671
  • [32] 1,3-Dioxolane: A green solvent for the preparation of carbon nanotube-modified electrodes
    Moscoso, R.
    Carbajo, J.
    Squella, J. A.
    ELECTROCHEMISTRY COMMUNICATIONS, 2014, 48 : 69 - 72
  • [33] One-step growth of Cu-doped carbon dots in amino-modified carbon nanotube-modified electrodes for sensitive electrochemical detection of BPA
    Liu, Wei
    Li, Muyi
    Zhang, Pengli
    Jiang, Hongmei
    Liu, Wenjun
    Guan, Jinyu
    Sun, Yanhua
    Liu, Xiaoying
    Zeng, Qiongyao
    MICROCHIMICA ACTA, 2024, 191 (06)
  • [34] Electrochemical studies of tamsulosin hydrochloride using multiwalled carbon nanotube-modified glassy carbon sensor
    Lonappan, L.
    Issac, S.
    Joseph, R.
    Thomas, D.
    Kumar, K. Girish
    MICRO & NANO LETTERS, 2011, 6 (10) : 867 - 870
  • [35] Aligned carbon nanotube-DNA electrochemical sensors
    He, PG
    Dai, LM
    CHEMICAL COMMUNICATIONS, 2004, (03) : 348 - 349
  • [36] Escherichia coli single-strand binding protein–DNA interactions on carbon nanotube-modified electrodes from a label-free electrochemical hybridization sensor
    Kagan Kerman
    Yasutaka Morita
    Yuzuru Takamura
    Eiichi Tamiya
    Analytical and Bioanalytical Chemistry, 2005, 381 : 1114 - 1121
  • [37] Reagentless glucose biosensor based on the direct electrochemistry of glucose oxidase on carbon nanotube-modified electrodes
    Luo, Xiliang
    Killard, Anthony J.
    Smyth, Malcolm R.
    ELECTROANALYSIS, 2006, 18 (11) : 1131 - 1134
  • [38] Electrochemical detection of anticancer drug lumazine and DNA interaction by using carbon nanotube modified electrodes
    Karadeniz, Hakan
    Eksin, Ece
    Erdem, Arzum
    JOURNAL OF RESEARCH IN PHARMACY, 2019, 23 (04): : 682 - 688
  • [39] Electrochemical determination of hydrogen sulfide at carbon nanotube modified electrodes
    Lawrence, NS
    Deo, RP
    Wang, J
    ANALYTICA CHIMICA ACTA, 2004, 517 (1-2) : 131 - 137
  • [40] Determination of levofloxacin in pharmaceutical formulations and urine at reduced graphene oxide and carbon nanotube-modified electrodes
    Davi Marques de Farias
    Lucas Vinícius de Faria
    Thalles Pedrosa Lisboa
    Maria Auxiliadora Costa Matos
    Rodrigo Alejandro Abarza Muñoz
    Renato Camargo Matos
    Journal of Solid State Electrochemistry, 2020, 24 : 1165 - 1173
12345