Proximity-based electrochemical biosensor for highly sensitive determination of methyltransferase activity using gold nanoparticle-based cooperative signal amplification

2015 ◽  
Vol 182 (13-14) ◽  
pp. 2329-2336 ◽  
Author(s):  
Zhang Zhang ◽  
Shangchun Sheng ◽  
Xianqing Cao ◽  
Yiyan Li ◽  
Juan Yao ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Signal Amplification ◽  
Electrochemical Biosensor ◽  
Methyltransferase Activity ◽  
Highly Sensitive ◽  
Sensitive Determination

Electrochemiluminescence signal amplification combined with a conformation-switched hairpin DNA probe for determining the methylation level and position in the Hsp53 tumor suppressor gene

2014 ◽  
Vol 50 (22) ◽  
pp. 2932-2934 ◽  
Author(s):  
Hui Zhang ◽  
Meixing Li ◽  
Mengxing Fan ◽  
Jinxing Gu ◽  
Ping Wu ◽  
...  
Keyword(s):  
Tumor Suppressor ◽  
Tumor Suppressor Gene ◽  
Methylation Level ◽  
Signal Amplification ◽  
Suppressor Gene ◽  
Dna Probe ◽  
P53 Tumor Suppressor Gene ◽  
Highly Sensitive ◽  
Sensitive Determination

An electrochemiluminescence approach for highly sensitive determination of methylation in the human p53 tumor suppressor gene is reported.

A high performance electrochemical biosensor based on Cu2O–carbon dots for selective and sensitive determination of dopamine in human serum

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54102-54108 ◽  
Author(s):  
Qitong Huang ◽  
Xiaofeng Lin ◽  
Changqing Lin ◽  
Yong Zhang ◽  
Shirong Hu ◽  
...  
Keyword(s):  
Composite Film ◽  
Human Serum ◽  
Cuprous Oxide ◽  
Carbon Dots ◽  
High Performance ◽  
Electrochemical Biosensor ◽  
Reliable Determination ◽  
Highly Sensitive ◽  
Sensitive Determination

A green and facile method was developed by synthesizing a cuprous oxide–carbon dots/Nafion (Cu2O–CDs/NF) composite film for highly sensitive and reliable determination of dopamine (DA).

Cross Double Point Discharge as Enhanced Excitation Source for Highly Sensitive Determination of Arsenic, Mercury and Lead by Optical Emission Spectrometry

2021 ◽  
Author(s):  
Lin He ◽  
Peixia Li ◽  
Kai Li ◽  
Tao Lin ◽  
Jin Luo ◽  
...  
Keyword(s):  
Double Point ◽  
Hydride Generation ◽  
Optical Emission ◽  
Sample Introduction ◽  
Excitation Source ◽  
Emission Spectrometry ◽  
Highly Sensitive ◽  
Point Discharge ◽  
Sensitive Determination

A new cross double point discharge (CrossPD) microplasma was designed as an excitation source to construct a miniaturized optical emission spectrometer with hydride generation (HG) for sample introduction. The CrossPD...

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.

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