Fabrication of fluorescence enhancement of quantum dots on a gold colloid formed film for oligonucleotide DNA detection

2017 ◽  
Vol 9 (3) ◽  
pp. 434-442 ◽  
Author(s):  
Jie Yang ◽  
Ji-Tao Song ◽  
Wei Hu ◽  
Yan Huang ◽  
Li-Juan Deng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Fluorescence Enhancement ◽  
Dna Detection ◽  
Gold Colloid ◽  
Target Dna

This paper reported a method based on metal-enhanced quantum dot fluorescence on a gold colloid formed film for target DNA detection.

Quantum material accompanied nonenzymatic cascade amplification for ultrasensitive photoelectrochemical DNA sensing

2017 ◽  
Vol 5 (37) ◽  
pp. 7775-7780 ◽  
Author(s):  
Guangming Wen ◽  
Xiaojie Yang ◽  
Yongzhao Wang
Keyword(s):  
Quantum Dots ◽  
Signal Amplification ◽  
Dna Detection ◽  
Dna Sensing ◽  
Target Dna ◽  
Cascade Amplification

A novel cascade photoelectrochemical (PEC) signal amplification sensing strategy was designed and applied in target DNA detection by introducing quantum dots (QD) as the accompanying tag.

scholarly journals Quantum Dots: A Quantum Dot Photoswitch for DNA Detection, Gene Transfection, and Live-Cell Imaging (Small 22/2012)

Small ◽  
2012 ◽  
Vol 8 (22) ◽  
pp. 3381-3381 ◽  
Author(s):  
Yuzhou Wu ◽  
Klaus Eisele ◽  
Mikheil Doroshenko ◽  
Gerardo Algara-Siller ◽  
Ute Kaiser ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Live Cell Imaging ◽  
Cell Imaging ◽  
Dna Detection ◽  
Gene Transfection ◽  
Live Cell

scholarly journals Plasmon-Enhanced Blue-Light Emission of Stable Perovskite Quantum Dot Membranes

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 770 ◽  
Author(s):  
Kai Gu ◽  
Hongshang Peng ◽  
Siwei Hua ◽  
Yusong Qu ◽  
Di Yang
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Blue Light ◽  
Polyvinylidene Fluoride ◽  
Fluorescence Enhancement ◽  
Light Emission ◽  
Electrospun Nanofibers ◽  
Layer By Layer ◽  
Blue Light Emission ◽  
Molecular Group

A series of stable and color-tunable MAPbBr3−xClx quantum dot membranes were fabricated via a cost-efficient high-throughput technology. MAPbBr3−xClx quantum dots grown in-situ in polyvinylidene fluoride electrospun nanofibers exhibit extraordinary stability. As polyvinylidene fluoride can prevent the molecular group MA+ from aggregating, MAPbBr3−xClx quantum dots are several nanometers and monodisperse in polyvinylidene fluoride fiber. As-prepared MAPbBr3−xClx quantum dot membranes exhibit the variable luminous color by controlling the Cl− content of MAPbBr3−xClx quantum dots. To improve blue-light emission efficiency, we successfully introduced Ag nanoparticle nanofibers into MAPbBr1.2Cl1.8 quantum dot membranes via layer-by-layer electrospinning and obtained ~4.8 folds fluorescence enhancement for one unit. Furthermore, the originality explanation for the fluorescence enhancement of MAPbBr3−xClx quantum dots is proposed based on simulating optical field distribution of the research system.

A quantum dot-based fluorescence sensor for sensitive and enzymeless detection of creatinine

2016 ◽  
Vol 8 (30) ◽  
pp. 5911-5920 ◽  
Author(s):  
Narjes Tajarrod ◽  
Mohammad Kazem Rofouei ◽  
Majid Masteri-Farahani ◽  
Reza Zadmard
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Fluorescence Enhancement ◽  
Thioglycolic Acid ◽  
Fluorescence Sensor ◽  
Water Soluble ◽  
Core Shell

A schematic illustration of a sensitive creatinine probe using fluorescence enhancement of water-soluble thioglycolic acid capped ZnS:Mn/ZnS core/shell quantum dots.

A CdTe–MPA quantum dot fluorescence enhancement flow method for chlorhexidine determination

2014 ◽  
Vol 6 (12) ◽  
pp. 4240-4246 ◽  
Author(s):  
João A. C. Barbosa ◽  
Vera L. R. G. Abreu ◽  
S. Sofia M. Rodrigues ◽  
Christian Frigerio ◽  
João L. M. Santos
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Fluorescence Enhancement ◽  
Water Soluble ◽  
Cdte Quantum Dots ◽  
Mercaptopropionic Acid ◽  
Flow Method

In this work the fluorescence enhancement that water-soluble CdTe quantum dots (QDs) capped with 3-mercaptopropionic acid (MPA) exhibit in the presence of a biguanide compound, chlorhexidine, was investigated.

NiAg-graphene quantum dot-graphene hybrid with high oxidase-like catalytic activity for sensitive colorimetric detection of malathion

2021 ◽  
Author(s):  
Xu Dan ◽  
Ruiyi Li ◽  
Qinsheng Wang ◽  
Yongqiang Yang ◽  
Haiyan Zhu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Catalytic Activity ◽  
Quantum Dot ◽  
Colorimetric Detection ◽  
Graphene Quantum Dots ◽  
Functionalized Graphene ◽  
Graphene Quantum Dot ◽  
Nickel Silver

The paper reports the synthesis of nickel-silver-graphene quantum dot-graphene hybrid. Histidine-functionalized graphene quantum dots (His-GQDs) were bonded to graphene oxide (GO) and then combined with Ni2+ and Ag+ to form...

scholarly journals Effect of Growth Temperature on the Characteristics of CsPbI3-Quantum Dots Doped Perovskite Film

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4439
Author(s):  
Shui-Yang Lien ◽  
Yu-Hao Chen ◽  
Wen-Ray Chen ◽  
Chuan-Hsi Liu ◽  
Chien-Jung Huang
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Quantum Dots ◽  
Quantum Dot ◽  
Growth Temperature ◽  
Electron Mobility ◽  
Surface Defects ◽  
Different Temperatures ◽  
Pb Doping ◽  
Pristine Film

In this study, adding CsPbI3 quantum dots to organic perovskite methylamine lead triiodide (CH3NH3PbI3) to form a doped perovskite film filmed by different temperatures was found to effectively reduce the formation of unsaturated metal Pb. Doping a small amount of CsPbI3 quantum dots could enhance thermal stability and improve surface defects. The electron mobility of the doped film was 2.5 times higher than the pristine film. This was a major breakthrough for inorganic quantum dot doped organic perovskite thin films.

Carbon quantum dot-sensitized hollow TiO2 spheres for high-performance visible light photocatalysis

2021 ◽  
Author(s):  
Xianfeng Zhang ◽  
Zongqun Li ◽  
Shaowen Xu ◽  
Yaowen Ruan
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
High Performance ◽  
Carbon Quantum Dots ◽  
Visible Light Photocatalysis ◽  
Carbon Quantum Dot ◽  
Visible Light Photocatalytic

TiO2/CQD composites were synthesized through carbon quantum dots covalently attached to the surface of hollow TiO2 spheres for visible light photocatalytic degradation of organics.

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