Detection of Escherichia coli bacteria by impact electrochemistry

被引:53
作者
Couto, Rosa A. S. [1 ]
Chen, Lifu [2 ]
Kuss, Sabine [2 ,3 ]
Compton, Richard G. [2 ]
机构
[1] Univ Porto, Fac Pharm, Dept Chem Sci, LAQV,REQUIMTE, Porto, Portugal
[2] Univ Oxford, Dept Chem, Phys & Theoret Chem Lab, South Parks Rd, Oxford OX1 3QZ, England
[3] Univ Manitoba, Dept Chem, 336 Parker Bldg, Winnipeg, MB R3T 2N2, Canada
基金
欧洲研究理事会;
关键词
BIOSENSORS;
D O I
10.1039/c8an01675e
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
We report the redox mediated detection of Escherichia coli bacteria at carbon microelectrodes, using the impact electrochemistry technique. By employing N,N,N,N-tetramethyl-para-phenylene-diamine (TMPD) as redox mediator a concentration dependency for bacteria impacts was observed, whereby its impact frequency is shown to be in good agreement with theoretically predicted values.
引用
收藏
页码:4840 / 4843
页数:4
相关论文
共 30 条
[1]   Electrochemical processes at the nanoscale [J].
Albrecht, T. ;
Horswell, S. ;
Allerston, L. K. ;
Rees, N. V. ;
Rodriguez, P. .
CURRENT OPINION IN ELECTROCHEMISTRY, 2018, 7 :138-145
[2]  
[Anonymous], E COL CELL CULT CONC
[3]  
[Anonymous], 2011, ANN REP CHIEF MED OF
[4]  
[Anonymous], STAND GROW HARV PACK
[5]   In situ nanoparticle sizing with zeptomole sensitivity [J].
Batchelor-McAuley, Christopher ;
Ellison, Joanna ;
Tschulik, Kristina ;
Hurst, Philip L. ;
Boldt, Regine ;
Compton, Richard G. .
ANALYST, 2015, 140 (15) :5048-5054
[6]   Preparation of microelectrodes: Comparison of polishing procedures by statistical analysis of voltammetric data [J].
Cardwell, TJ ;
Mocak, J ;
Santos, JH ;
Bond, AM .
ANALYST, 1996, 121 (03) :357-362
[7]   Shielding of a Microdisc Electrode Surrounded by an Adsorbing Surface [J].
Eloul, Shaltiel ;
Compton, Richard G. .
CHEMELECTROCHEM, 2014, 1 (05) :917-924
[8]  
Ivnitski D, 2000, ELECTROANAL, V12, P317, DOI 10.1002/(SICI)1521-4109(20000301)12:5<317::AID-ELAN317>3.0.CO
[9]  
2-A
[10]   Enhanced diffusion of nonswimmers in a three-dimensional bath of motile bacteria [J].
Jepson, Alys ;
Martinez, Vincent A. ;
Schwarz-Linek, Jana ;
Morozov, Alexander ;
Poon, Wilson C. K. .
PHYSICAL REVIEW E, 2013, 88 (04)