A Paper-based Mitochondrial Electrochemical Biosensor for Pesticide Detection

2015 ◽  
Vol 28 (4) ◽  
pp. 854-859 ◽  
Author(s):  
Tao Wang ◽  
Russell C. Reid ◽  
Shelley D. Minteer
Keyword(s):  
Electrochemical Biosensor ◽  
Pesticide Detection

Polycrystalline boron-doped diamond-based electrochemical biosensor for simultaneous detection of dopamine and melatonin

2020 ◽  
Vol 1135 ◽  
pp. 73-82 ◽  
Author(s):  
Zhen Yang ◽  
Mingji Li ◽  
Hongji Li ◽  
Huayi Li ◽  
Cuiping Li ◽  
...  
Keyword(s):  
Electrochemical Biosensor ◽  
Simultaneous Detection ◽  
Boron Doped Diamond ◽  
Boron Doped

scholarly journals Assessing Surface Coverage of Aminophenyl Bonding Sites on Diazotised Glassy Carbon Electrodes for Optimised Electrochemical Biosensor Performance

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 416
Author(s):  
Zari Tehrani ◽  
Hina Yaqub Abbasi ◽  
Anitha Devadoss ◽  
Jonathan Edward Evans ◽  
Owen James Guy
Keyword(s):  
Carboxylic Acid ◽  
Surface Coverage ◽  
Electrochemical Biosensor ◽  
Electrochemical Techniques ◽  
Differential Pulse ◽  
Second Step ◽  
Glassy Carbon Electrodes ◽  
Potential Marker ◽  
Pulse Voltammetry ◽  
Amine Coupling

Electrochemical biosensors using carbon-based electrodes are being widely developed for the detection of a range of different diseases. Since their sensitivity depends on the surface coverage of bioreceptor moieties, it necessarily depends on the surface coverage of amine precursors. Electrochemical techniques, using ferrocene carboxylic acid as a rapid and cheap assay, were used to assess the surface coverage of amino-phenyl groups attached to the carbon electrode. While the number of electrons transferred in the first step of diazotisation indicated a surface coverage of 8.02 ± 0.2 × l0−10 (mol/cm2), and those transferred in the second step, a reduction of nitrophenyl to amino-phenyl, indicated an amine surface coverage of 4–5 × l0−10 (mol/cm2), the number of electrons transferred during attachment of the amine coupling assay compound, ferrocene carboxylic acid, indicated a much lower available amine coverage of only 2.2 × l0−11 (mol/cm2). Furthermore, the available amine coverage was critically dependent upon the number of cyclic voltammetry cycles used in the reduction, and thus the procedures used in this step influenced the sensitivity of any subsequent sensor. Amine coupling of a carboxyl terminated anti-beta amyloid antibody specific to Aβ(1-42) peptide, a potential marker for Alzheimer’s disease, followed the same pattern of coverage as that observed with ferrocene carboxylic acid, and at optimum amine coverage, the sensitivity of the differential pulse voltammetry sensor was in the range 0–200 ng/mL with the slope of 5.07 µA/ng·mL−1 and R2 = 0.98.

An electrochemical biosensor based on DNA “nano-bridge” for amplified detection of exosomal microRNAs

2021 ◽  
Author(s):  
Jing Zhang ◽  
Meifeng Hou ◽  
Guanyu Chen ◽  
Huifang Mao ◽  
Wenqian Chen ◽  
...  
Keyword(s):  
Electrochemical Biosensor

DNA electrochemical biosensor for detection of Alicyclobacillus acidoterrestris utilizing Hoechst 33258 as indicator

2021 ◽  
pp. 107801
Author(s):  
José M. R. Flauzino ◽  
Rafaela C. S. Peres ◽  
Lívia M. Alves ◽  
Jussara G. Vieira ◽  
Júlia G. dos Santos ◽  
...  
Keyword(s):  
Electrochemical Biosensor ◽  
Hoechst 33258 ◽  
Alicyclobacillus Acidoterrestris ◽  
Dna Electrochemical Biosensor

Gold nanostructure-programmed flexible electrochemical biosensor for detection of glucose and lactate in sweat

2021 ◽  
Vol 882 ◽  
pp. 115029
Author(s):  
Mengke Yu ◽  
Yu-Tao Li ◽  
Youfan Hu ◽  
Lina Tang ◽  
Fan Yang ◽  
...  
Keyword(s):  
Electrochemical Biosensor ◽  
Gold Nanostructure

A novel label free long non-coding RNA electrochemical biosensor based on green l-cysteine electrodeposition and Au–Rh hollow nanospheres as tags

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 51990-51999 ◽  
Author(s):  
Fei Liu ◽  
Guiming Xiang ◽  
Liqun Zhang ◽  
Dongneng Jiang ◽  
Linlin Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Single Wall Carbon Nanotubes ◽  
Complex Signal ◽  
Ultrasensitive Detection ◽  
Label Free ◽  
Hollow Nanospheres ◽  
Non Coding Rna ◽  
Long Non Coding Rna

lncRNA biosensor based on single-wall carbon nanotubes wrapped with Au–Rh hollow nanospheres (Au/Rh-HNP@SWCNT) complex signal amplification and an l-Cys Au nano-film provided ultrasensitive detection for the nuclear paraspeckle assembly transcript 1 (NEAT1).

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