Versatile Self‐Assembly and Biosensing Applications of DNA and Carbon Quantum Dots Coordinated Cerium Ions

2017 ◽  
Vol 23 (43) ◽  
pp. 10413-10422 ◽  
Author(s):  
Ling Wang ◽  
Yitong Wang ◽  
Xiaofeng Sun ◽  
Geping Zhang ◽  
Shuli Dong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Self Assembly ◽  
Carbon Quantum Dots

Fluorescent hybrid nanospheres induced by single-stranded DNA and magnetic carbon quantum dots

2019 ◽  
Vol 43 (12) ◽  
pp. 4965-4974 ◽  
Author(s):  
Ling Wang ◽  
Guangzhen Wang ◽  
Yitong Wang ◽  
Huizhong Liu ◽  
Shuli Dong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Self Assembly ◽  
Building Blocks ◽  
Carbon Quantum Dots ◽  
Single Stranded Dna ◽  
Magnetic Carbon

Assembled DNA nanospheres were preparedviaself-assembly with magnetic CQDGd as the building blocks and negatively charged ssDNA as the assembly units.

Synthesis of luminescent 3D microstructures formed by carbon quantum dots and their self-assembly properties

2014 ◽  
Vol 50 (50) ◽  
pp. 6592-6595 ◽  
Author(s):  
D. Mazzier ◽  
M. Favaro ◽  
S. Agnoli ◽  
S. Silvestrini ◽  
G. Granozzi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Self Assembly ◽  
Carbon Quantum Dots ◽  
Emission Properties ◽  
Self Assembling ◽  
Characteristic Emission

Novel star shaped carbon quantum dots–(poly-γ-benzyl-l-glutamate) conjugates displayed a self-assembling propensity to generate spherical microstructures that retain the characteristic emission properties of the native dots.

scholarly journals Metal free and efficient photoelectrocatalytic removal of organic contaminants over g-C3N4 nanosheet films decorated with carbon quantum dots

RSC Advances ◽  
2017 ◽  
Vol 7 (89) ◽  
pp. 56335-56343 ◽  
Author(s):  
Zisheng Zhang ◽  
Shuanglong Lin ◽  
Xingang Li ◽  
Hong Li ◽  
Wenquan Cui
Keyword(s):  
Quantum Dots ◽  
Self Assembly ◽  
Organic Contaminants ◽  
Carbon Quantum Dots ◽  
Ultrasonic Dispersion ◽  
Composite Photocatalyst ◽  
Metal Free ◽  
Assembly Method ◽  
Semiconductor Photocatalyst

As a typical metal-free semiconductor photocatalyst, a composite photocatalyst comprised of g-C3N4 nanosheets decorated with carbon quantum dots (CQDs/g-C3N4) was synthesized via a simple ultrasonic dispersion self-assembly method.

Specific Antibiofilm of Carbon Quantum Dots by Destroying P. gingivalis Biofilm Related Proteins Self-assembly

2020 ◽  
Author(s):  
gaofeng liang ◽  
Hao Shi ◽  
Yijun Qi ◽  
Jinghua Li ◽  
Aihua Jing ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Self Assembly ◽  
Energy Dispersive Spectrometer ◽  
Carbon Quantum Dots ◽  
Antibacterial Drug ◽  
Obvious Effect ◽  
Prevotella Nigrescens ◽  
Transmission Electron ◽  
Related Proteins ◽  
Drug Resistant Strains

Abstract Biofilms protected bacteria from antibiotics and produced drug-resistant strains, especially the main pathogen of periodontitis- Porphyromonas gingivalis ( P. gingivalis ). In this investigation, the carbon quantum dots (TCDs and MCDs) were prepared by hydrothermal method with clinic antibacterial drug-Tinidazole and Metronidazole and exhibited unique antibiofilm properties. The transmission electron microscope (TEM) images showed that the TCDs and MCDs had uniform sizes and the results of UV-vis and energy dispersive spectrometer (EDS) confirmed their important carbon polymerization structures. The prepared TCDs and MCDs were characterized by infrared spectroscopy and still kept the activity of nitro group, which still had an obvious effect on P. gingivalis . Interestingly, the results showed that they both have significant antibacterial effect on P. gingivalis , while the effect of TCDs was better than MCDs. However the TCDs has almost ineffect on other bacteria including Escherichia coli ( E. coli ), Staphylococcus aureus ( S. aureus ) and Prevotella nigrescens ( P. nigrescens ), the MCDs still have obviously antibacterial ability to P. ningrescens . Importantly, the TCDs can penetrate the biofilms to further effectively inhibited the growth of P. gingivalis under the biofilms. Furtherly, we revealed the hydrophilic TCDs destroy P. gingivalis ’ adhesion and impair toxicity by inhibiting the major virulence factors and related genes involved in biofilm formation of P. gingivalis, thus affect the self-assembly of biofilm related proteins. The findings may not only develop a new promising method for improve the periodontitis treatment efficiency by penetrating P. gingivalis biofilm with preparation of nano-level antibacterial drugs.

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