Catalytic hairpin assembly-based electrochemical biosensor with tandem signal amplification for sensitive microRNA assay

2020 ◽  
Vol 56 (70) ◽  
pp. 10191-10194
Author(s):  
Lin Cui ◽  
Jinghua Zhou ◽  
Xiao-Yun Yang ◽  
Jing Dong ◽  
Xiaolei Wang ◽  
...  
Keyword(s):  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Catalytic Hairpin Assembly

We develop a catalytic hairpin assembly-based electrochemical biosensor with tandem signal amplification for sensitive microRNA assay.

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 highly sensitive electrochemical microRNA-21 biosensor based on intercalating methylene blue signal amplification and a highly dispersed gold nanoparticles/graphene/polypyrrole composite

The Analyst ◽  
2021 ◽  
Vol 146 (8) ◽  
pp. 2679-2688
Author(s):  
Chammari Pothipor ◽  
Noppadol Aroonyadet ◽  
Suwussa Bamrungsap ◽  
Jaroon Jakmunee ◽  
Kontad Ounnunkad
Keyword(s):  
Methylene Blue ◽  
Gold Nanoparticles ◽  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Highly Sensitive ◽  
Highly Dispersed ◽  
Polypyrrole Composite ◽  
Amplification Strategy ◽  
Dispersed Gold ◽  
Potential Tool

An ultrasensitive electrochemical biosensor based on a gold nanoparticles/graphene/polypyrrole composite modified electrode and a signal amplification strategy employing methylene blue is developed as a potential tool for the detection of miRNA-21.

rhEPO/EPO discrimination with ultrasensitive electrochemical biosensor based on sandwich-type nano-Au/ZnO sol–gel/nano-Au signal amplification

2013 ◽  
Vol 50 ◽  
pp. 217-223 ◽  
Author(s):  
Liqun Zhang ◽  
Yunxia Wang ◽  
Jingjing Wang ◽  
Jianfeng Shi ◽  
Kun Deng ◽  
...  
Keyword(s):  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Sol Gel ◽  
Sandwich Type

Electrochemical biosensor for detection of pathogenic bacteria based on dual signal amplification of Cu3(PO4)2-mediated click chemistry and DNAzyme

The Analyst ◽  
2021 ◽  
Author(s):  
Hongguo Wei ◽  
Jiayu Wan ◽  
Shengjun Bu ◽  
Wenguang Zhang ◽  
Ma Li ◽  
...  
Keyword(s):  
Click Chemistry ◽  
Magnetic Separation ◽  
Concanavalin A ◽  
Signal Amplification ◽  
Pathogenic Bacteria ◽  
Electrochemical Biosensor ◽  
Inorganic Hybrid ◽  
Highly Sensitive ◽  
Antibody Conjugates ◽  
Dual Signal Amplification

A novel electrochemical biosensor for detecting pathogenic bacteria was designed based on specific magnetic separation and highly sensitive click chemistry. Instead of enzyme-antibody conjugates, organic-inorganic hybrid nanoflowers (Concanavalin A (Con...

A label-free and enzyme-free signal amplification strategy for a sensitive RNase H activity assay

Nanoscale ◽  
2017 ◽  
Vol 9 (42) ◽  
pp. 16149-16153 ◽  
Author(s):  
Chang Yeol Lee ◽  
Hyowon Jang ◽  
Ki Soo Park ◽  
Hyun Gyu Park
Keyword(s):  
Signal Amplification ◽  
Rnase H ◽  
Label Free ◽  
Activity Assay ◽  
G Quadruplex ◽  
Catalytic Hairpin Assembly ◽  
Amplification Strategy

A target-triggered catalytic hairpin assembly with a G-quadruplex specific fluorescent binder, NMM, is employed to develop a novel and sensitive RNase H activity assay.

An enzyme free electrochemical biosensor for sensitive detection of miRNA with a high discrimination factor by coupling the strand displacement reaction and catalytic hairpin assembly recycling

The Analyst ◽  
2017 ◽  
Vol 142 (21) ◽  
pp. 4116-4123 ◽  
Author(s):  
Juan Yao ◽  
Zhang Zhang ◽  
Zhenghua Deng ◽  
Youqiang Wang ◽  
Yongcan Guo
Keyword(s):  
Electrochemical Biosensor ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Discrimination Factor ◽  
Displacement Reaction ◽  
Strand Displacement ◽  
High Discrimination ◽  
Catalytic Hairpin Assembly ◽  
Strand Displacement Reaction

Sensitive and selective detection of miRNA based on the toehold-mediated strand displacement reaction (SDR) and non-enzymatic catalytic hairpin reaction (CHA) recycling.

Ultrasensitive DNA electrochemical biosensor based on MnTBAP biomimetic catalyzed AGET ATRP signal amplification reaction

2020 ◽  
Vol 56 (49) ◽  
pp. 6636-6639
Author(s):  
Haobo Sun ◽  
Yunliang Qiu ◽  
Yajie Lu ◽  
Jinming Kong ◽  
Xueji Zhang
Keyword(s):  
Dna Sequences ◽  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Aget Atrp ◽  
Dna Electrochemical Biosensor ◽  
Amplification Reaction

In this paper, an ultrasensitive, highly selective and green electrochemical biosensor for quantifying DNA sequences (aM DNA) based on a MnTBAP catalyst for AGET ATRP reaction is proposed.

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