A highly sensitive electrochemical aptasensor for detection of microcystin-LR based on a dual signal amplification strategy

The Analyst ◽  
2019 ◽  
Vol 144 (5) ◽  
pp. 1671-1678 ◽  
Author(s):  
Xiaoqiang Liu ◽  
Yunfei Tang ◽  
Peipei Liu ◽  
Liwei Yang ◽  
Lele Li ◽  
...  
Keyword(s):  
Horseradish Peroxidase ◽  
Signal Amplification ◽  
Electrochemical Aptasensor ◽  
Ternary Composite ◽  
Highly Sensitive ◽  
Amplification System ◽  
Amplification Strategy ◽  
Dual Signal Amplification ◽  
Signal Amplification System

In this work, a sensitive and selective electrochemical aptasensor for detection of microcystin-LR was developed based on a dual signal amplification system consisted of a novel ternary composite and horseradish peroxidase.

Highly sensitive colorimetric immunoassay for Escherichia coli O157:H7 based on probe of pseudo enzyme and dual signal amplification

2018 ◽  
Vol 10 (35) ◽  
pp. 4301-4309 ◽  
Author(s):  
Haoran Huang ◽  
Zunyi Wu ◽  
Jianfeng Huang ◽  
Guangying Zhao ◽  
Wenchao Dou
Keyword(s):  
Signal Amplification ◽  
Quantitative Detection ◽  
Escherichia Coli O157 ◽  
E Coli ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Amplification System ◽  
Colorimetric Immunoassay ◽  
Dual Signal Amplification ◽  
Signal Amplification System

A sensitive colorimetric immunoassay was established for quantitative detection of E. coli O157:H7. Au@Pt with peroxidase-like activity was combined with flaky reduced graphene oxide to form a chromogenic probe of pseudo enzyme. HRP was modified on rGO-NR–Au@Pt and a dual signal amplification system was realized.

An electrochemical aptasensor for detection of IFN-γ using graphene and a dual signal amplification strategy based on the exonuclease-mediated surface-initiated enzymatic polymerization

The Analyst ◽  
2015 ◽  
Vol 140 (22) ◽  
pp. 7784-7791 ◽  
Author(s):  
Chang Liu ◽  
Guiming Xiang ◽  
Dongneng Jiang ◽  
Linlin Liu ◽  
Fei Liu ◽  
...  
Keyword(s):  
Signal Amplification ◽  
Enzymatic Polymerization ◽  
Electrochemical Aptasensor ◽  
Target Recycling ◽  
Ifn Γ ◽  
Amplification Strategy ◽  
Dual Signal Amplification

A novel aptasensor based on exonuclease-catalyzed target recycling and surface-initiated enzymatic polymerization for amplification.

A highly sensitive photoelectrochemical VEGF165 biosensor with a dual signal amplification strategy by using AgVO3 as a photoactive material

2019 ◽  
Vol 55 (56) ◽  
pp. 8076-8078 ◽  
Author(s):  
Huimei Da ◽  
Yaling Liu ◽  
Mengjie Li ◽  
Ruo Yuan ◽  
Hongyan Liu ◽  
...  
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Growth Factor ◽  
Signal Amplification ◽  
Sensitive Detection ◽  
Vascular Endothelial ◽  
Background Signal ◽  
Highly Sensitive ◽  
Amplification Strategy ◽  
Dual Signal Amplification ◽  
Endothelial Growth Factor

We developed a novel “signal-on” photoelectrochemical (PEC) aptasensor with a near-zero background signal by using AgVO3 as a single photoactive material for the sensitive detection of vascular endothelial growth factor (VEGF165).

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