Aptamer-mediated ‘turn-off/turn-on’ nanozyme activity of gold nanoparticles for kanamycin detection

2014 ◽  
Vol 50 (100) ◽  
pp. 15856-15859 ◽  
Author(s):  
Tarun Kumar Sharma ◽  
Rajesh Ramanathan ◽  
Pabudi Weerathunge ◽  
Mahsa Mohammadtaheri ◽  
Hemant Kumar Daima ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
High Affinity ◽  
Turn On ◽  
Highly Sensitive ◽  
Ssdna Aptamer

A new ultrafast and highly sensitive ‘turn-off/turn-on’ biosensing approach that combines the intrinsic peroxidase-like activity of gold nanoparticles (GNPs) with the high affinity and specificity of a ssDNA aptamer is presented.

A phenanthrene[9,10-d]imidazole-phenol-based fluorescent probe combined ESIPT and AIE for “turn-on” detection of Cu2+ with a green-emitting and improved stokes shift and its application

2021 ◽  
Author(s):  
Jiahui Du ◽  
Bing Zhao ◽  
Wei Kan ◽  
Haochun Yin ◽  
Tianshu Song ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Stokes Shift ◽  
Fluorescent Sensors ◽  
Turn On ◽  
Highly Sensitive

Development of highly sensitive and selective fluorescent sensors toward Cu2+ has gained considerable attention in view of its application of environmental and biological fields. However, the strategy of sensing by...

Synthesis and application of polycation-stabilized gold nanoparticles as a highly sensitive sensor for molecular cysteine determination

2021 ◽  
pp. 106481
Author(s):  
Quang Khanh Nguyen ◽  
Thi Hieu Hoang ◽  
Xuan Thanh Bui ◽  
Thi Anh Huong Nguyen ◽  
Tien Duc Pham ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Highly Sensitive ◽  
Sensitive Sensor

scholarly journals A dual colorimetric probe for rapid environmental monitoring of Hg2+ and As3+ using gold nanoparticles functionalized with d-penicillamine

RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5456-5465
Author(s):  
Su-Jin Yoon ◽  
Yun-Sik Nam ◽  
Yeonhee Lee ◽  
In Hwan Oh ◽  
Kang-Bong Lee
Keyword(s):  
Gold Nanoparticles ◽  
Environmental Monitoring ◽  
Colorimetric Assay ◽  
Colorimetric Probe ◽  
Highly Sensitive ◽  
Dual Detection

A highly sensitive and selective colorimetric assay for the dual detection of Hg2+ and As3+ using gold nanoparticles (AuNPs) conjugated with d-penicillamine (DPL) was developed.

Hydrophobic collapse-driven nanoparticle coating with poly-adenine adhesives

2021 ◽  
Vol 57 (31) ◽  
pp. 3801-3804
Author(s):  
Dan Zhu ◽  
Jiang Li ◽  
Lianhui Wang ◽  
Qian Li ◽  
Lihua Wang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Nanoparticle Coating ◽  
Hydrophobic Collapse ◽  
High Affinity ◽  
Strong Adhesion

Poly-adenine DNA shows strong adhesion to gold nanoparticles with high affinity via hydrophobic collapse.

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.

A highly-sensitive “turn on” probe based on coumarin β-diketone for hydrazine detection in PBS and living cells

2021 ◽  
Vol 252 ◽  
pp. 119510
Author(s):  
Rui Chen ◽  
Guang-Jin Shi ◽  
Jia-Jia Wang ◽  
Hai-Feng Qin ◽  
Qi Zhang ◽  
...  
Keyword(s):  
Living Cells ◽  
Turn On ◽  
Highly Sensitive

Highly sensitive detection of hesperidin using AuNPs/rGO modified glassy carbon electrode

The Analyst ◽  
2018 ◽  
Vol 143 (1) ◽  
pp. 297-303 ◽  
Author(s):  
Yang Gao ◽  
Xiufeng Wu ◽  
Hui Wang ◽  
Wenbo Lu ◽  
Mandong Guo
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

The highly sensitive and selective electrochemical sensor of hesperidin based on gold nanoparticles (AuNPs) and reduced graphene oxide (rGO) modified glassy carbon electrode (GCE) is reported.

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