Electrochemical detection of aflatoxin B1: an aptasensor prepared using graphene oxide and gold nanowires

2019 ◽  
Vol 11 (47) ◽  
pp. 6033-6042 ◽  
Author(s):  
Somayeh Mousavi Nodoushan ◽  
Navid Nasirizadeh ◽  
Reza Kachuei ◽  
Abbas Ali Imani Fooladi
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Detection ◽  
Aflatoxin B1 ◽  
Gold Nanowires ◽  
Electrochemical Aptasensor

An electrochemical aptasensor was developed for the detection of aflatoxin B1 using a nanocomposite of graphene oxide and gold nanowires.

Ultrasensitive electrochemical detection of ochratoxin A based on signal amplification by one-pot synthesized flower-like PEDOT–AuNFs supported on a graphene oxide sponge

The Analyst ◽  
2019 ◽  
Vol 144 (19) ◽  
pp. 5866-5874 ◽  
Author(s):  
Pengxiang Wang ◽  
Luyan Wang ◽  
Mei Ding ◽  
Meishan Pei ◽  
Wenjuan Guo
Keyword(s):  
Graphene Oxide ◽  
Ochratoxin A ◽  
Electrochemical Detection ◽  
Signal Amplification ◽  
Electrochemical Aptasensor ◽  
One Pot ◽  
Additional Signal

An ultrasensitive electrochemical aptasensor without additional signal amplifiers was designed to detect OTA, and it was based on flower-like PEDOT–AuNFs supported on GOS.

A novel reduced graphene oxide/molybdenum disulfide/polyaniline nanocomposite-based electrochemical aptasensor for detection of aflatoxin B1

The Analyst ◽  
2018 ◽  
Vol 143 (7) ◽  
pp. 1644-1649 ◽  
Author(s):  
Girma Selale Geleta ◽  
Zhen Zhao ◽  
Zhenxin Wang
Keyword(s):  
Graphene Oxide ◽  
Molybdenum Disulfide ◽  
Reduced Graphene Oxide ◽  
Aflatoxin B1 ◽  
Label Free ◽  
Electrochemical Aptasensor ◽  
Reduced Graphene ◽  
Graphene Nanocomposite ◽  
Aflatoxin B ◽  
Polyaniline Nanocomposite

A label-free electrochemical aptasensor based on graphene nanocomposite was successfully fabricated for Aflatoxin B1 (AFB1) detection.

scholarly journals Immobilization-Free Electrochemical Sensor Coupled with a Graphene-Oxide-Based Aptasensor for Glycated Albumin Detection

Biosensors ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 85
Author(s):  
Wassa Waiwinya ◽  
Thitirat Putnin ◽  
Dechnarong Pimalai ◽  
Wireeya Chawjiraphan ◽  
Nuankanya Sathirapongsasuti ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Detection Method ◽  
Limit Of Detection ◽  
Glycated Albumin ◽  
Cost Effective ◽  
Logarithmic Scale ◽  
Electrochemical Aptasensor ◽  
Alternative Approach

An immobilization-free electrochemical sensor coupled with a graphene oxide (GO)-based aptasensor was developed for glycated human serum albumin (GHSA) detection. The concentration of GHSA was monitored by measuring the electrochemical response of free GO and aptamer-bound GO in the presence of glycated albumin; their currents served as the analytical signals. The electrochemical aptasensor exhibited good performance with a base-10 logarithmic scale. The calibration curve was achieved in the range of 0.01–50 µg/mL. The limit of detection (LOD) was 8.70 ng/mL. The developed method was considered a one-drop measurement process because a fabrication step and the probe-immobilization process were not required. This simple sensor offers a cost-effective, rapid, and sensitive detection method, and could be an alternative approach for determination of GHSA levels.

scholarly journals A reduced graphene oxide-β-cyclodextrin nanocomposite-based electrode for electrochemical detection of curcumin

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 7862-7872
Author(s):  
Behzad Mirzaei ◽  
Ali Zarrabi ◽  
Abdollah Noorbakhsh ◽  
Abbas Amini ◽  
Pooyan Makvandi
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Beta Cyclodextrin ◽  
Reduced Graphene

In this study, a sensitive electrochemical sensor was fabricated based on a beta-cyclodextrin–reduced graphene oxide (β-CD–rGO) nanocomposite for measuring curcumin concentration.

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