Selective and sensitive mercuric (ii) ion detection based on quantum dots and nicking endonuclease assisted signal amplification

2013 ◽  
Vol 43 ◽  
pp. 84-87 ◽  
Author(s):  
Jing Ma ◽  
Yanhong Chen ◽  
Zhun Hou ◽  
Wei Jiang ◽  
Lei Wang
Keyword(s):  
Quantum Dots ◽  
Signal Amplification ◽  
Ion Detection ◽  
Nicking Endonuclease

Sensitive mutant DNA biomarker detection based on magnetic nanoparticles and nicking endonuclease assisted fluorescence signal amplification

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20020-20024 ◽  
Author(s):  
Na Li ◽  
Zhong Feng Gao ◽  
Bei Hua Kang ◽  
Nian Bing Li ◽  
Hong Qun Luo
Keyword(s):  
Magnetic Nanoparticles ◽  
Signal Amplification ◽  
Fluorescence Signal ◽  
Biomarker Detection ◽  
Background Signal ◽  
Sensitive Mutant ◽  
Nicking Endonuclease ◽  
Low Background ◽  
Target Dna ◽  
Fluorescence Signal Amplification

Amplified fluorescence target DNA detection was developed combining nicking endonuclease assisted target recycling and magnetic nanoparticles with low background signal.

Quantum Dots as Components of Electrochemical Sensing Platforms for the Detection of Environmental and Food Pollutants: a Review

2017 ◽  
Vol 100 (4) ◽  
pp. 950-961 ◽  
Author(s):  
María Pedrero ◽  
Susana Campuzano ◽  
José M Pingarrón
Keyword(s):  
Quantum Dots ◽  
Signal Amplification ◽  
Cost Effective ◽  
Ease Of Use ◽  
Electrochemical Sensing ◽  
Multiplexed Detection ◽  
Sensing Platforms ◽  
Target Analytes

Abstract The determination of organic and inorganic environmental and food pollutants is a key matter of concern in analytical chemistry due to their effects as a serious threat to human health. Focusing on this issue, several methodologies involving the use of nanostructured electrochemical platforms have been recently reported in the literature. Among these methods, those employing the use of quantum dots (QDs) stand out because of features such as signal amplification, good reproducibility and selectivity, and the possibility for multiplexed detection, and because they preserve the outstanding characteristics of electrochemical methodologies with respect to simplicity, ease-of-use, and cost-effective instrumentation. This review describes recent electrochemical strategies, in which design QDs play a key role, for the determination of pollutants in food and environmental samples. The particular role of QDs in the reported methodologies, their preparation, and the electrochemical platform design, as well as the advantages that QDs provide in the analysis of target analytes, are critically discussed.

Allergen immobilisation and signal amplification by quantum dots for use in a biosensor assay of IgE in serum

2014 ◽  
Vol 52 ◽  
pp. 82-88 ◽  
Author(s):  
Geoffrey W. Platt ◽  
Francesco Damin ◽  
Marcus J. Swann ◽  
Isabelle Metton ◽  
Gilbert Skorski ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Signal Amplification

A FRET based aptasensor coupled with non-enzymatic signal amplification for mercury (II) ion detection

Talanta ◽  
2016 ◽  
Vol 155 ◽  
pp. 305-313 ◽  
Author(s):  
Ketsarin Chu-mong ◽  
Chongdee Thammakhet ◽  
Panote Thavarungkul ◽  
Proespichaya Kanatharana ◽  
Chittanon Buranachai
Keyword(s):  
Signal Amplification ◽  
Ion Detection ◽  
Enzymatic Signal Amplification

Synthesis of amphiphilic carbon quantum dots with phosphorescence properties and their multifunctional applications

2016 ◽  
Vol 4 (42) ◽  
pp. 10146-10153 ◽  
Author(s):  
Jing Tan ◽  
Jie Zhang ◽  
Wang Li ◽  
Liqun Zhang ◽  
Dongmei Yue
Keyword(s):  
Quantum Dots ◽  
Cell Imaging ◽  
Carbon Quantum Dots ◽  
Ion Detection ◽  
Two Photon

Amphiphilic quantum dots with phosphorescence properties have been synthesized and applied for ion detection and two-photon cell imaging.

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