A label-free and sensitive electrochemical aptasensor for thrombin based on the direct electron transfer of hemin and hemin@rGO nanosheets as the signal probe

2015 ◽  
Vol 7 (20) ◽  
pp. 8771-8777 ◽  
Author(s):  
Shuyan Xue ◽  
Huafyu Yi ◽  
Yali Yuan ◽  
Pei Jing ◽  
Wenju Xu
Keyword(s):  
Electron Transfer ◽  
Direct Electron Transfer ◽  
Sensitive Detection ◽  
Label Free ◽  
Electrochemical Aptasensor ◽  
Signal Probe

In this work, a label-free electrochemical aptasensor for sensitive detection of thrombin was fabricated and characterized.

A label-free electrochemical aptasensor based on the core–shell Cu-MOF@TpBD hybrid nanoarchitecture for the sensitive detection of PDGF-BB

The Analyst ◽  
2021 ◽  
Author(s):  
Ya Li ◽  
Zhiling Liu ◽  
Wenbo Lu ◽  
Man Zhao ◽  
He Xiao ◽  
...  
Keyword(s):  
Hybrid Nanocomposites ◽  
Sensitive Detection ◽  
Core Shell ◽  
Label Free ◽  
Electrochemical Aptasensor ◽  
The Core

A novel label-free electrochemical aptasensor based on core–shell Cu-MOF@TpBD hybrid nanocomposites has been prepared for the sensitive detection of PDGF-BB.

Electrochemical Detection of Bacteria Using Graphene Oxide Electrodeposited on Titanium Implants

2014 ◽  
Vol 96 ◽  
pp. 45-53 ◽  
Author(s):  
Sirinrath Sirivisoot ◽  
Yardnapar Parcharoen ◽  
Thomas J. Webster
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Electrochemical Sensors ◽  
Direct Electron Transfer ◽  
Orthopedic Implants ◽  
Titanium Implants ◽  
Cyclic Voltammograms ◽  
Label Free ◽  
Bacteria Growth ◽  
E Coli

Graphene oxide was electrodeposited on titanium (Ti-GO) and anodized titanium (ATi-GO) as label-free sensors for the detection of challenging living organisms, specificallyEscherichia coli(E. coli) andStaphylococcus aureus(S. aureus). The graphene modification contributed to two sets of oxidation-reduction peaks in cyclic voltammograms (CVs) of bacteria growth on the electrode surfaces (ATi-GO) that resulted in increasing direct electron transfer and stimulating excretion of mediating molecules for higher electron transfer between electrodes and bacteria. Additionally, similar wave patterns of CVs were found whenE. coliorS. aureuswere grown and electrocatalyzed on ATi-GO. The results suggest that bacteria on titanium implant surfaces could be easily detected by using mediatorless ATi-GO sensors electrochemically. These finding open another interesting method in using ATi-GO asin situelectrochemical sensors for label-free, close to real-time detection of bacteria infection in orthopedic implants.

A label-free electrochemical aptasensor based on leaf-like vanadium disulfide-Au nanoparticles for the sensitive and selective detection of platelet-derived growth factor BB

2015 ◽  
Vol 7 (19) ◽  
pp. 8277-8284 ◽  
Author(s):  
Xue Liu ◽  
Hong-Lei Shuai ◽  
Ke-Jing Huang
Keyword(s):  
Growth Factor ◽  
Hydrothermal Method ◽  
Au Nanoparticles ◽  
Platelet Derived Growth Factor ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Label Free ◽  
Electrochemical Aptasensor ◽  
Facile Hydrothermal Method

In this work, an electrochemical aptasensor for the sensitive detection of platelet-derived growth factor BB (PDGF-BB) is fabricated based on leaf-like VS2 nanosheets which are prepared by a facile hydrothermal method.

Graphene-based label-free electrochemical aptasensor for rapid and sensitive detection of foodborne pathogen

2017 ◽  
Vol 409 (29) ◽  
pp. 6893-6905 ◽  
Author(s):  
Shalini Muniandy ◽  
Ignatius Julian Dinshaw ◽  
Swe Jyan Teh ◽  
Chin Wei Lai ◽  
Fatimah Ibrahim ◽  
...  
Keyword(s):  
Foodborne Pathogen ◽  
Sensitive Detection ◽  
Label Free ◽  
Electrochemical Aptasensor
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