Novel ultrasensitive homogeneous electrochemical aptasensor based on dsDNA-templated copper nanoparticles for the detection of ractopamine

2017 ◽  
Vol 5 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Feifan Sheng ◽  
Xiaojun Zhang ◽  
Guangfeng Wang
Keyword(s):  
Copper Nanoparticles ◽  
Signal Amplification ◽  
Ultrasensitive Detection ◽  
Electrochemical Aptasensor ◽  
Hairpin Dna

Herein, we describe a novel homogenous electrochemical aptasensor for the ultrasensitive detection of ractopamine (RAC) based on the signal amplification of a hairpin DNA cascade amplifier (HDCA) and electrocatalysis of dsDNA-templated copper nanoparticles.

Hairpin DNA-fueled dynamic self-assembly of three-arm DNA branched junctions consisting of active DNAzyme structures for enzyme-free ultrasensitive detection of nucleic acids

2016 ◽  
Vol 8 (47) ◽  
pp. 8262-8265 ◽  
Author(s):  
Ke Yang ◽  
Ming Zeng ◽  
Xing He ◽  
Jianming Li ◽  
Dinggeng He
Keyword(s):  
Nucleic Acids ◽  
Self Assembly ◽  
Signal Amplification ◽  
Ultrasensitive Detection ◽  
Hairpin Dna ◽  
Amplification Strategy ◽  
Dual Signal Amplification

An enzyme-free dual signal amplification strategy based on programmable molecular hairpins has been developed for amplified detection of DNA via the hairpin DNA-fueled dynamic self-assembly of three-arm DNAzyme.

Gold nanoparticle-engineered electrochemical aptamer biosensor for ultrasensitive detection of thrombin

2020 ◽  
Vol 12 (29) ◽  
pp. 3729-3733
Author(s):  
Ying Chen ◽  
Junyi Xiang ◽  
Bin Liu ◽  
Zhengbo Chen ◽  
Xia Zuo
Keyword(s):  
Gold Nanoparticle ◽  
Signal Amplification ◽  
Type Structure ◽  
Ultrasensitive Detection ◽  
Electrochemical Aptasensor ◽  
Sandwich Type

An electrochemical aptasensor for the ultrasensitive determination of TB based on sandwich-type structure-triggered signal amplification.

Ultrasensitive detection of specific IgE based on nanomagnetic capture and separation with AuNP-anti-IgE nanobioprobe for signal amplification

2021 ◽  
Author(s):  
Mengda Cao ◽  
Yongxin Liu ◽  
Chen Lu ◽  
Miao Guo ◽  
Lin Li ◽  
...  
Keyword(s):  
Allergic Disease ◽  
Signal Amplification ◽  
Specific Ige ◽  
Ultrasensitive Detection ◽  
Accurate Detection ◽  
Personalized Diagnosis

The accurate detection of allergen specific IgE (sIgE) is fundamental in the diagnosis of allergic disease. The present commercial platforms fail to meet the need for personalized diagnosis, due to...

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).

A Novel Electrochemical Aptasensor for the Ultrasensitive Detection of Adenosine Triphosphate Based on DNA-Templated Copolymers

2021 ◽  
Author(s):  
Xiaoyan He ◽  
Jiandi Dong ◽  
Huimin Han ◽  
Nan Sun ◽  
Wenyu Shi ◽  
...  
Keyword(s):  
Adenosine Triphosphate ◽  
Ultrasensitive Detection ◽  
Electrochemical Aptasensor

Electrochemical aptasensor based on proximity binding-induced DNA networked for enzyme-free and ultrasensitive detection of thrombin

2021 ◽  
pp. 115447
Author(s):  
Wei Li ◽  
Ding Zhao ◽  
Dongdong Tian ◽  
Manman Zhai ◽  
Hongdan Xu ◽  
...  
Keyword(s):  
Ultrasensitive Detection ◽  
Electrochemical Aptasensor

A new enzyme-free quadratic SERS signal amplification approach for circulating microRNA detection in human serum

2015 ◽  
Vol 51 (90) ◽  
pp. 16271-16274 ◽  
Author(s):  
Jing Zheng ◽  
Dandan Ma ◽  
Muling Shi ◽  
Junhui Bai ◽  
Yinhui Li ◽  
...  
Keyword(s):  
Human Serum ◽  
Signal Amplification ◽  
Circulating Microrna ◽  
Ultrasensitive Detection ◽  
Circulating Mirna ◽  
Sers Signal ◽  
Microrna Detection

In this communication, we proposed a new enzyme-free quadratic SERS signal amplification approach for the ultrasensitive detection of circulating miRNA in human serum.

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