A facile method to study the bioaccumulation kinetics of amorphous silica nanoparticles by quantum dot embedding

2018 ◽  
Vol 5 (12) ◽  
pp. 2830-2841
Author(s):  
Xiao-Mei Zang ◽  
Jia-Ming Li ◽  
Ying Wang ◽  
Yue-Yue Liu ◽  
Zhong-Bo Wei ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Silica Nanoparticles ◽  
Amorphous Silica ◽  
Kinetics Of

A facile method was developed to study the bioaccumulation kinetics of amorphous silica nanoparticles (AmSiNPs) by embedding the particles with quantum dots (QDs) and then using Cd as the tracer.

Fabrication of mono-dispersed silica-coated quantum dot-assembled magnetic nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (41) ◽  
pp. 32072-32077 ◽  
Author(s):  
San Kyeong ◽  
Cheolhwan Jeong ◽  
Han Young Kim ◽  
Do Won Hwang ◽  
Homan Kang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Quantum Dot ◽  
Silica Nanoparticles ◽  
Fluorescent Properties

Quantum dots-embedded silica nanoparticles with an iron oxide NP core were prepared and exhibited super-paramagnetic and highly fluorescent properties.

A naked-eye pH-modulated ratiometric photoluminescence sensor based on dual-emission quantum dot@silica nanoparticles for Zn2+ and IO3−

RSC Advances ◽  
2015 ◽  
Vol 5 (85) ◽  
pp. 69251-69258 ◽  
Author(s):  
Yang Li ◽  
Qiang Ma ◽  
Guodong Li ◽  
Xingguang Su
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Silica Nanoparticles ◽  
Dual Emission ◽  
Naked Eye

A sensitive and selective ratiometric photoluminescence (PL) sensor comprised of dual-emission quantum dots (QDs)@silica nanoparticles has been developed for the detection of Zn2+ and IO3−.

Quantum Dots: Ultrasensitive, Biocompatible, Quantum-Dot-Embedded Silica Nanoparticles for Bioimaging (Adv. Funct. Mater. 9/2012)

2012 ◽  
Vol 22 (9) ◽  
pp. 1774-1774
Author(s):  
Bong-Hyun Jun ◽  
Do Won Hwang ◽  
Heung Su Jung ◽  
Jaeho Jang ◽  
Hyunsoo Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Silica Nanoparticles

Understanding the Enhanced Kinetics of Enzyme-Quantum Dot Constructs

MRS Advances ◽  
2015 ◽  
Vol 1 (57) ◽  
pp. 3831-3836 ◽  
Author(s):  
Joyce Breger ◽  
Scott Walper ◽  
Mario Ancona ◽  
Michael Stewart ◽  
Eunkeu Oh ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Nerve Agent ◽  
Medical Diagnostics ◽  
Threat Detection ◽  
Hybrid Architectures ◽  
Enzyme Systems ◽  
Device Applications ◽  
Mechanistic Understanding ◽  
Kinetics Of

ABSTRACTBio-inspired, hybrid architectures employing quantum dots (QDs) appended with functionally active biomolecules such as enzymes have the potential to be utilized in numerous applications. Some examples include nanosensors for medical diagnostics, chemical/biological threat detection, as well as “bio-factories” in complex industrial synthetic processes. The main advantage in creating these nanofactories is increased rates in catalysis and efficiency when enzymes are associated with nanoscaffolds, as shown in numerous studies. However, the mechanism for this enhancement remains elusive. Gaining a fundamental, mechanistic understanding of enzyme-QD nanostructures is important in the development of numerous device applications. In this work, we review an array of enzymes attached to QDs and generate a hypothesis in regards to the unique architecture of the enzyme-nanoparticle (NP) construct that leads to increases in catalysis. We highlight work with phosphotiresterase (PTE) attached to two distinctly sized QDs in neutralizing a simulant nerve agent, as well as in other enzyme systems.

Photoluminescent carbon quantum dot grafted silica nanoparticles directly synthesized from rice husk biomass

2017 ◽  
Vol 5 (24) ◽  
pp. 4679-4689 ◽  
Author(s):  
Zhaofeng Wang ◽  
Jingjing Liu ◽  
Weilin Wang ◽  
Zichao Wei ◽  
Fan Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Silica Nanoparticles ◽  
Rice Husk ◽  
Carbon Quantum Dots ◽  
Production Yield ◽  
Rice Husks ◽  
Carbon Quantum Dot ◽  
High Production

Carbon quantum dots grafted silica nanoparticles with high production yield and versatile photoluminescence are directly fabricated from rice husks.

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.

scholarly journals Insights on toxicity, safe handling and disposal of silica aerogels and amorphous nanoparticles

2021 ◽  
Author(s):  
João P. Vareda ◽  
Carlos A. García-González ◽  
Artur J. M. Valente ◽  
Rosana Simón-Vázquez ◽  
Marina Stipetic ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Amorphous Silica ◽  
Silica Aerogels ◽  
Safe Handling ◽  
Synthetic Amorphous Silica ◽  
Amorphous Nanoparticles

The toxicity and ecotoxicity effects, handling and disposal of synthetic amorphous silica nanoparticles and aerogels are reviewed and discussed.

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