Highly sensitive naked-eye and fluorescence “turn-on” detection of Cu2+ using Fenton reaction assisted signal amplification

2010 ◽  
Vol 46 (48) ◽  
pp. 9220 ◽  
Author(s):  
Yi-Bin Ruan ◽  
Chun Li ◽  
Jie Tang ◽  
Juan Xie
Keyword(s):  
Signal Amplification ◽  
Fenton Reaction ◽  
Naked Eye ◽  
Turn On ◽  
Highly Sensitive ◽  
Fluorescence Turn On

Naked-Eye Detection of Hg(II) Ions by Visible Light-Induced Polymerization Initiated by a Hg(II)-Selective Photoredox Catalyst

2021 ◽  
Author(s):  
Hyungwook Kim ◽  
Young Jae Jung ◽  
Jungkyu K. Lee
Keyword(s):  
Visible Light ◽  
Signal Amplification ◽  
Eye Detection ◽  
Naked Eye ◽  
Turn On ◽  
Novel Strategy ◽  
Amplification Strategy ◽  
Naked Eye Detection

We developed a novel strategy for signal amplification strategy using a visible light-induced photopolymerization, initiated by a selective turn-on photoredox catalyst. As photoredox catalysts, fluorescein derivatives are able to initiate...

scholarly journals Graphene quantum dots based fluorescence turn-on nanoprobe for highly sensitive and selective imaging of hydrogen sulfide in living cells

2018 ◽  
Vol 6 (4) ◽  
pp. 779-784 ◽  
Author(s):  
Nan Li ◽  
Aung Than ◽  
Jie Chen ◽  
Fengna Xi ◽  
Jiyang Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Hydrogen Sulfide ◽  
Real Time ◽  
Dynamic Change ◽  
Graphene Quantum Dots ◽  
Living Cells ◽  
Real Time Monitoring ◽  
Turn On ◽  
Highly Sensitive ◽  
Fluorescence Turn On

Graphene quantum dots-based fluorescent turn-on nanoprobe is developed for real-time monitoring the triggered dynamic change of intracellular H2S.

Real-time naked-eye multiplex detection of toxins and bacteria using AIEgens with the assistance of graphene oxide

2017 ◽  
Vol 196 ◽  
pp. 363-375 ◽  
Author(s):  
Ruoyu Zhang ◽  
Xiaolei Cai ◽  
Guangxue Feng ◽  
Bin Liu
Keyword(s):  
Graphene Oxide ◽  
Real Time ◽  
Human Life ◽  
Fluorescent Light ◽  
Multiplex Detection ◽  
Detection Model ◽  
Naked Eye ◽  
Turn On ◽  
Fluorescence Turn On ◽  
Naked Eye Detection

Toxins and bacteria in water or food pose a threat to human life and could potentially be exploited for bioterrorism. Real-time naked-eye detection of these contaminants is highly desirable to provide a direct and simple analytical method and address the challenges of the existing strategies. Using the detection of ricin and B. subtilis as an example, a naked-eye multiplex detection model is established. In this work, a green fluorogen with aggregation-induced emission (AIE) characteristics was encapsulated in silica nanoshells. The resulting green AIE nanoparticles (NPs) were further functionalized with ricin binding aptamers (RBA), which were used together with graphene oxide (GO) to provide a fluorescence turn-on approach recognizable by naked eye for the specific sensing of ricin. The platform is compatible with a red emissive fluorescent light-up probe (AIE-2Van) for B. subtilis detection. The success of the multiplex is validated by different colours, that is, green for ricin and red for B. subtilis, which are clearly recognizable by naked eye in the same solution.

Graphene nanosensor for highly sensitive fluorescence turn-on detection of Hg2+based on target recycling amplification

RSC Advances ◽  
2014 ◽  
Vol 4 (73) ◽  
pp. 39082 ◽  
Author(s):  
Yulian Wei ◽  
Wenjiao Zhou ◽  
Yunying Xu ◽  
Yun Xiang ◽  
Ruo Yuan ◽  
...  
Keyword(s):  
Target Recycling ◽  
Turn On ◽  
Highly Sensitive ◽  
Recycling Amplification ◽  
Fluorescence Turn On

A new mode to light up an adjacent DNA-scaffolded silver probe pair and its application for specific DNA detection

2014 ◽  
Vol 50 (100) ◽  
pp. 15991-15994 ◽  
Author(s):  
Bin-Cheng Yin ◽  
Jin-Liang Ma ◽  
Huynh-Nhu Le ◽  
Shilong Wang ◽  
Zengguang Xu ◽  
...  
Keyword(s):  
Signal Amplification ◽  
Fluorescence Enhancement ◽  
Dna Detection ◽  
Probe Pair ◽  
Exonuclease Iii ◽  
Silver Nanocluster ◽  
Turn On ◽  
Fluorescence Turn On

By fluorescence enhancement of a proximity-dependent DNA-scaffolded silver nanocluster probe pair and exonuclease III-mediated signal amplification, we present a new fluorescence turn-on mode and its application for specific DNA detection.

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