Where is the Best Substitution Position of Amino Groups on Carbon Dots: A Computational Strategy toward Long-Wavelength Red Emission

2021 ◽  
Author(s):  
Nengjie Cao ◽  
Quan Wang ◽  
Xianggui Zhou ◽  
Yixun Gao ◽  
Yancong Feng ◽  
...  
Keyword(s):  
Carbon Dots ◽  
High Stability ◽  
Amino Groups ◽  
Red Emission ◽  
Fluorescent Material ◽  
Long Wavelength ◽  
Optoelectronic Applications ◽  
Low Cytotoxicity ◽  
Computational Strategy

Carbon dots (CDs) are a promising fluorescent material in biological and optoelectronic applications owing to their high biocompatibility, low cytotoxicity, and high stability. Red emission CDs are not only widely...

A deep-red emission fluorescent probe for detection of viscosity in living cells and mice

2019 ◽  
Vol 11 (20) ◽  
pp. 2626-2629 ◽  
Author(s):  
Shiying Gao ◽  
Yanyan Ma ◽  
Weiying Lin
Keyword(s):  
Fluorescent Probe ◽  
High Stability ◽  
Living Cells ◽  
Living Systems ◽  
Red Emission ◽  
Low Cytotoxicity ◽  
In Cells

A deep-red emission fluorescent probe HY for detecting viscosity in living systems was developed. The probe exhibited ideal properties including good selectivity, high stability and low cytotoxicity. Importantly, the probe HY has been successfully utilized for monitoring viscosity variations in cells and living mice.

One-Step Fabrication of Functional Carbon Dots with Long Wavelength Emission for Gene Delivery and Bio-imaging

2021 ◽  
Author(s):  
Xiao-Qi Yu ◽  
Ping Chen ◽  
Xi He ◽  
Xiao-Li Tian ◽  
Ji Zhang
Keyword(s):  
Drug Delivery ◽  
Gene Delivery ◽  
Carbon Dots ◽  
Fluorescent Material ◽  
Long Wavelength ◽  
Bio Imaging ◽  
One Step ◽  
New Type ◽  
Wavelength Emission

As a new-type of fluorescent material, carbon dots (CDs) are promising nanoscale reagents with the potential to integrate the functions of bio-imaging and gene / drug delivery. Most of reported...

scholarly journals Synthesis of aminated polystyrene and its self-assembly with nanoparticles at oil/water interface

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 317-327
Author(s):  
Chenliang Shi ◽  
Ling Lin ◽  
Yukun Yang ◽  
Wenjia Luo ◽  
Maoqing Deng ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Self Assembly ◽  
Carbon Dots ◽  
Chain Transfer ◽  
Functionalized Polymers ◽  
Amino Groups ◽  
One Dimensional ◽  
Reversible Addition ◽  
Oil Water ◽  
Chain Transfer Polymerization

AbstractThe influence of density of amino groups, nanoparticles dimension and pH on the interaction between end-functionalized polymers and nanoparticles was extensively investigated in this study. PS–NH2 and H2N–PS–NH2 were prepared using reversible addition–fragmentation chain transfer polymerization and atom transfer radical polymerization. Zero-dimensional carbon dots with sulfonate groups, one-dimensional cellulose nanocrystals with sulfate groups and two-dimensional graphene with sulfonate groups in the aqueous phase were added into the toluene phase containing the aminated PS. The results indicate that aminated PS exhibited the strongest interfacial activity after compounding with sulfonated nanoparticles at a pH of 3. PS ended with two amino groups performed better in reducing the water/toluene interfacial tension than PS ended with only one amino group. The dimension of sulfonated nanoparticles also contributed significantly to the reduction in the water/toluene interfacial tension. The minimal interfacial tension was 4.49 mN/m after compounding PS–NH2 with sulfonated zero-dimensional carbon dots.

Hierarchical computational screening of layered lead-free metal halide perovskites for optoelectronic applications

2021 ◽  
Author(s):  
Qiuqi Li ◽  
Dan Cao ◽  
Xueyin Liu ◽  
Xiangyu Zhou ◽  
Xiaoshuang Chen ◽  
...  
Keyword(s):  
High Stability ◽  
Screening Method ◽  
Optoelectronic Properties ◽  
Metal Halide ◽  
Lead Free ◽  
Computational Screening ◽  
Halide Perovskites ◽  
Optoelectronic Applications ◽  
Free Metal

A hierarchical computational screening method is used to find layered lead-free metal halide perovskites with high stability and outstanding optoelectronic properties.

scholarly journals Strongly tricolor-emitting carbon dots synthesized by a combined aging–annealing route and their bio-application

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50802-50811 ◽  
Author(s):  
Ya Peng ◽  
Xinyan Zhou ◽  
Nannan Zheng ◽  
Lingyu Wang ◽  
Xingping Zhou
Keyword(s):  
Carbon Dots ◽  
High Stability ◽  
Fluorescence Probe ◽  
Cell Cytotoxicity ◽  
Very High

A novel way has been established to make the FCDs with a very high QY, high stability, low cell cytotoxicity, and outstanding performance as a fluorescence probe.

Optical properties of hemicyanines with terminal amino groups and their applications in near-infrared fluorescent imaging of nucleoli

2014 ◽  
Vol 2 (40) ◽  
pp. 7065-7072 ◽  
Author(s):  
Jia-Tao Miao ◽  
Chen Fan ◽  
Ru Sun ◽  
Yu-Jie Xu ◽  
Jian-Feng Ge
Keyword(s):  
Optical Properties ◽  
Near Infrared ◽  
Water Solubility ◽  
Stokes Shift ◽  
Fluorescent Imaging ◽  
Amino Groups ◽  
Long Wave ◽  
Terminal Amino ◽  
Wave Emission ◽  
Low Cytotoxicity

A cellular dye with properties of long-wave emission, large Stokes shift, water solubility, low cytotoxicity, and good photostability is reported.

scholarly journals A Review of Carbon Dots Produced from Biomass Wastes

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2316
Author(s):  
Chao Kang ◽  
Ying Huang ◽  
Hui Yang ◽  
Xiu Fang Yan ◽  
Zeng Ping Chen
Keyword(s):  
Carbon Dots ◽  
Raw Materials ◽  
Low Cost ◽  
Disease Diagnosis ◽  
Good Choice ◽  
Biomass Waste ◽  
Renewable Raw Materials ◽  
Wide Availability ◽  
Low Cytotoxicity ◽  
Synthetic Approaches

The fluorescent carbon dot is a novel type of carbon nanomaterial. In comparison with semiconductor quantum dots and fluorescence organic agents, it possesses significant advantages such as excellent photostability and biocompatibility, low cytotoxicity and easy surface functionalization, which endow it a wide application prospect in fields of bioimaging, chemical sensing, environmental monitoring, disease diagnosis and photocatalysis as well. Biomass waste is a good choice for the production of carbon dots owing to its abundance, wide availability, eco-friendly nature and a source of low cost renewable raw materials such as cellulose, hemicellulose, lignin, carbohydrates and proteins, etc. This paper reviews the main sources of biomass waste, the feasibility and superiority of adopting biomass waste as a carbon source for the synthesis of carbon dots, the synthetic approaches of carbon dots from biomass waste and their applications. The advantages and deficiencies of carbon dots from biomass waste and the major influencing factors on their photoluminescence characteristics are summarized and discussed. The challenges and perspectives in the synthesis of carbon dots from biomass wastes are also briefly outlined.

Thiophene-based pyridine derivatives: synthesis, crystal structures, two-photon absorption properties and bio-imaging applications in the near-IR region

2016 ◽  
Vol 40 (10) ◽  
pp. 8809-8814 ◽  
Author(s):  
Shasha Xu ◽  
Yingzhong Zhu ◽  
Rui Li ◽  
Jian Su ◽  
Shengli Li ◽  
...  
Keyword(s):  
Cross Sections ◽  
High Stability ◽  
Photon Absorption ◽  
Pyridine Derivatives ◽  
Absorption Properties ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Near Ir ◽  
Bio Imaging ◽  
Low Cytotoxicity

Two novel D–π–A structural chromophores showing large 2PA active cross-sections, low cytotoxicity and high stability in near-IR bio-imaging.

Sign in / Sign up

Export Citation Format

Share Document