One-Pot Green Synthesis of Nitrogen-Doped Carbon Quantum Dots for Cell Nucleus Labeling and Copper(II) Detection

2017 ◽  
Vol 12 (22) ◽  
pp. 2916-2921 ◽  
Author(s):  
Jiliang Ci ◽  
Ye Tian ◽  
Shigenori Kuga ◽  
Zhongwei Niu ◽  
Min Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Cell Nucleus ◽  
Carbon Quantum Dots ◽  
One Pot ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

scholarly journals One-step and green synthesis of nitrogen-doped carbon quantum dots for multifunctional electronics

RSC Advances ◽  
2017 ◽  
Vol 7 (35) ◽  
pp. 21969-21973 ◽  
Author(s):  
Zhan Wang ◽  
Lijun Cao ◽  
Yamei Ding ◽  
Rui Shi ◽  
Xiangjing Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Carbon Quantum Dots ◽  
Limiting Behavior ◽  
Nitrogen Doped ◽  
Current Limiting ◽  
One Step ◽  
Nitrogen Doped Carbon

A facile one-step and green synthesis of nitrogen-doped CQDs has been developed, the N-doped CQD-based device exhibits multifunctional memory and current limiting behavior.

scholarly journals Environment-dependent Emission Tuning in the Multicolor Nitrogen-doped Carbon Quantum Dots

2021 ◽  
Author(s):  
Dineshkumar Sengottuvelu ◽  
Abdul Kalam Shaik ◽  
Satish Mishra ◽  
Mahsa Abbaszadeh ◽  
Nathan Hammer ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solid State ◽  
Large Scale ◽  
Low Cost ◽  
Visible Region ◽  
Carbon Quantum Dots ◽  
One Pot ◽  
Nitrogen Doped ◽  
Emission Changes ◽  
Nitrogen Doped Carbon

Carbon quantum dots (CQDs) are fascinating luminous materials from the carbonaceous family and are increasingly being investigated in many optoelectronic applications due to their unique photoluminescence (PL) characteristics. Herein, we report the synthesis of nitrogen-doped carbon quantum dots (NCQDs) from citric acid and m-phenylenediamine using a one-pot hydrothermal approach. The environment-dependent emission changes of NCQDs were extensively investigated in various solvents, in solid-state, and in physically assembled PMMA-PnBA-PMMA copolymer gels in 2-ethyl hexanol. The NCQDs display bright emission in various solvents as well as in solid-state and a temperature-dependent enhanced emission in gels. In detail, these NCQDs exhibit multicolor PL emission across the visible region and its enhancement upon changing the environment (solutions and polymer matrices). The NCQDs also exhibit excitation-dependent PL and solvatochromism, which are rarely observed in CQDs. Most CQDs are non-emissive in the aggregated or solid-state due to the aggregation-caused quenching (ACQ) effect, limiting their solid-state applications. However, these NCQDs display a strong solid-state emission centered at 568 nm ascribed to the presence of abundant surface functional groups, which helps to prevent the - interaction between the NCQDs and to overcome the ACQ effect in the solid-state. Interestingly, the NCQD containing gels display a significant fluorescence enhancement than the NCQDs in 2-ethyl hexanol solution because of the interaction between the polar PMMA blocks and NCQDs. This research opens up the development of large-scale, low-cost multicolor phosphor for the fabrication of optoelectronic devices, sensing, and bioimaging applications.

scholarly journals Fluorescent-Nitrogen-Doped Carbon Quantum Dots Derived from Citrus Lemon Juice: Green Synthesis, Mercury(II) Ion Sensing, and Live Cell Imaging

ACS Omega ◽  
2020 ◽  
Vol 5 (8) ◽  
pp. 3889-3898 ◽  
Author(s):  
Aschalew Tadesse ◽  
Mebrahtu Hagos ◽  
Dharmasoth RamaDevi ◽  
Kaloth Basavaiah ◽  
Neway Belachew
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Live Cell Imaging ◽  
Cell Imaging ◽  
Carbon Quantum Dots ◽  
Lemon Juice ◽  
Live Cell ◽  
Nitrogen Doped ◽  
Ion Sensing ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon quantum dots from biomass via simple one-pot method and exploration of their application

2018 ◽  
Vol 434 ◽  
pp. 1079-1085 ◽  
Author(s):  
Qiming Yang ◽  
Jialong Duan ◽  
Wen Yang ◽  
Xueming Li ◽  
Jinghui Mo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
One Pot ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon
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