Polymer-Templated Perylene-Probe Noncovalent Self-Assembly: A New Strategy for Label-Free Ultrasensitive Fluorescence Turn-On Biosensing

Hazardous volatile organic compounds (VOCs) can significantly impact human health and the environment. Hence, the detection of VOCs has become foremost important. Quinoxaline-based fluorimetric probe (1) unveils a notable “Turn-On”...

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Design of a Fluorescence Turn-on and Label-free Aptasensor Using the Intrinsic Quenching Power of G-Quadruplex to AMT

Analytical Sciences ◽

10.2116/analsci.19p455 ◽

2020 ◽

Vol 36 (8) ◽

pp. 965-970

Author(s):

Dandan WANG ◽

Fenghua GENG ◽

Yongxiang WANG ◽

Yu MA ◽

Guixin LI ◽

...

Keyword(s):

Label Free ◽

Turn On ◽

G Quadruplex ◽

Fluorescence Turn On

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DNA-templated silver nanoclusters–graphene oxide nanohybrid materials: a platform for label-free and sensitive fluorescence turn-on detection of multiple nucleic acid targets

The Analyst ◽

10.1039/c2an35373c ◽

2012 ◽

Vol 137 (11) ◽

pp. 2588 ◽

Cited By ~ 64

Author(s):

Yu Tao ◽

Youhui Lin ◽

Zhenzhen Huang ◽

Jinsong Ren ◽

Xiaogang Qu

Keyword(s):

Graphene Oxide ◽

Nucleic Acid ◽

Silver Nanoclusters ◽

Label Free ◽

Turn On ◽

Nanohybrid Materials ◽

Fluorescence Turn On

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A label-free fluorescence turn-on sensor for rapid detection of cysteine

Talanta ◽

10.1016/j.talanta.2015.02.012 ◽

2015 ◽

Vol 138 ◽

pp. 144-148 ◽

Cited By ~ 8

Author(s):

Xia Chen ◽

Hongli Liu ◽

Chen Wang ◽

Hui Hu ◽

Yuhui Wang ◽

...

Keyword(s):

Rapid Detection ◽

Label Free ◽

Turn On ◽

Fluorescence Turn On

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Nucleic acid-controlled quantum dots aggregation: A label-free fluorescence turn-on strategy for alkaline phosphatase detection

Talanta ◽

10.1016/j.talanta.2017.03.063 ◽

2017 ◽

Vol 169 ◽

pp. 64-69 ◽

Cited By ~ 10

Author(s):

Zhenzhen Hu ◽

Jian Chen ◽

Yongxin Li ◽

Yan Wang ◽

Qingfeng Zhang ◽

...

Keyword(s):

Quantum Dots ◽

Alkaline Phosphatase ◽

Nucleic Acid ◽

Label Free ◽

Turn On ◽

Fluorescence Turn On

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Label-free fluorescence turn on detection of tiopronin with tunable dynamic range based on the ensemble of Alizarin Red S/copper ion

Talanta ◽

10.1016/j.talanta.2012.07.021 ◽

2012 ◽

Vol 99 ◽

pp. 774-779 ◽

Cited By ~ 7

Author(s):

Zhanguang Chen ◽

Zhen Wang ◽

Junhui Chen ◽

Wenhua Gao

Keyword(s):

Dynamic Range ◽

Copper Ion ◽

Alizarin Red S ◽

Label Free ◽

Alizarin Red ◽

Turn On ◽

Fluorescence Turn On

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Improved Detection of Hg2+ in Aqueous Solution with High Sensitivity and Selectivity by Using Mercury-Specific DNA, Sybr Green I and Gold Nanoparticles

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.239-242.934 ◽

2011 ◽

Vol 239-242 ◽

pp. 934-939

Author(s):

Hui Xu ◽

Shuli Gao ◽

Jian Nong Chen ◽

Quan Wen Liu

Keyword(s):

Gold Nanoparticles ◽

High Sensitivity ◽

Sybr Green ◽

Sybr Green I ◽

Fluorescence Signal ◽

Potassium Ions ◽

Label Free ◽

Turn On ◽

Sensitivity And Selectivity ◽

Fluorescence Turn On

We report a label-free, fast, fluorescence turn on assay for Hg2+detecton by using mercury-specific DNA (MSD), Sybr Green I (SG) and gold nanoparticles (AuNPs). SG efficiently discriminates MSD and MSD/Hg2+complex. The addition of gold nanoparticle decreases the background fluorescence signal further for MSD. The fluorescence intensity of MSD/Hg2+complex keeps constant after addition of AuNPs. This property improves the signal-to-background ratio and decreases the detection limitation further. In addition, the method shows improved selectivity compared with that in the absence of AuNPs. This strategy could be applied to the detection of potassium ions and showed good generality.

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