A Novel Electrochemical Aptasensor for Serum Dopamine Detection Based on Methylene Blue-Integrated m-PdNFs Signal Material

2021 ◽  
pp. 131233
Author(s):  
Chengli Zhang ◽  
Xun You ◽  
Yuliang Li ◽  
Yuanyuan Zuo ◽  
Wei Wang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Electrochemical Aptasensor ◽  
Dopamine Detection

Detection of Cytochrome C Using a Selective and Sensitive Methylene Blue-Based Electrochemical Aptasensor

2020 ◽  
pp. 1-8
Author(s):  
Mohadeseh Safaei ◽  
Hadi Beitollahi ◽  
Masoud Reza Shishehbore
Keyword(s):  
Methylene Blue ◽  
Detection Limit ◽  
Cytochrome C ◽  
Au Nanoparticles ◽  
Sandwich Immunoassay ◽  
Electrochemical Aptasensor ◽  
Au Nps ◽  
Peak Current ◽  
Aptamer Probe

The present research aimed to detect the cytochrome C using methylene blue (MB)-anchored ultrasensitive electrochemical aptamer conjugated with Au nanoparticles (NPs), as a new electrochemical sandwich immunoassay. Aptamer-Au NPs could act as sandwich amplification element and MB accumulation reagent. According to the results, the interaction of MB and guanine occurred strongly on aptamer probe. After switching the aptamer structure by the cytochrome C, the MB- labeled aptamer probe was forced to detach from the sensing interface. Moreover, the cytochrome C concentrations (0.05-10.0 µM) with 5.0 nM detection limit reduced linearly the peak current of MB. In conclusion, an acceptable selectivity was observed for the constructed aptasensor in detecting the cytochrome C.

A simple label-free electrochemical aptasensor for dopamine detection

RSC Advances ◽  
2014 ◽  
Vol 4 (94) ◽  
pp. 52250-52255 ◽  
Author(s):  
Jiawan Zhou ◽  
Wenyang Wang ◽  
Peng Yu ◽  
Erhu Xiong ◽  
Xiaohua Zhang ◽  
...  
Keyword(s):  
Electrochemical Biosensor ◽  
Dna Aptamer ◽  
Selective Detection ◽  
Label Free ◽  
Electrochemical Aptasensor ◽  
Dopamine Detection

A simple and label-free electrochemical biosensor based on a dopamine DNA aptamer was developed for the sensitive and selective detection of dopamine.

A novel electrochemical aptasensor based on nontarget-induced high accumulation of methylene blue on the surface of electrode for sensing of α-synuclein oligomer

2019 ◽  
Vol 123 ◽  
pp. 14-18 ◽  
Author(s):  
Seyed Mohammad Taghdisi ◽  
Noor Mohammad Danesh ◽  
Morteza Alinezhad Nameghi ◽  
Mohammad Ramezani ◽  
Mona Alibolandi ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Electrochemical Aptasensor ◽  
High Accumulation

An electrochemical aptasensor-based CoxP-decorated porous carbon microspheres and AuNRs labelled methylene blue as signal labels for the sensitive detection of PCB77

2020 ◽  
Vol 12 (37) ◽  
pp. 4579-4587
Author(s):  
Panpan Tian ◽  
Baozhong Zhang ◽  
Lina Lv ◽  
Lingling Xie ◽  
Hanyu Chen ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Porous Carbon ◽  
Sensitive Detection ◽  
Electrochemical Aptasensor ◽  
Carbon Microspheres

Diagram of the electrochemical aptasensor construction and the mechanism for detection of PCB77.

A triple-helix molecular switch-based electrochemical aptasensor for interferon-gamma using a gold electrode and Methylene Blue as a redox probe

2017 ◽  
Vol 184 (10) ◽  
pp. 4151-4157 ◽  
Author(s):  
Khalil Abnous ◽  
Noor Mohammad Danesh ◽  
Mohammad Ramezani ◽  
Mona Alibolandi ◽  
Koroush Yousefi Hassanabad ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Interferon Gamma ◽  
Triple Helix ◽  
Gold Electrode ◽  
Molecular Switch ◽  
Electrochemical Aptasensor ◽  
Redox Probe
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