Understanding the Citric Acid-Urea Co-Directed Microwave Assisted Synthesis and Ferric Ion Modulation of Fluorescent Nitrogen Doped Carbon Dots: A Turn On Assay for Ascorbic Acid

2019 ◽  
Vol 4 (3) ◽  
pp. 816-824 ◽  
Author(s):  
J. S. Anjali Devi ◽  
R. S. Aparna ◽  
B. Aswathy ◽  
John Nebu ◽  
A. O. Aswathy ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Citric Acid ◽  
Carbon Dots ◽  
Microwave Assisted Synthesis ◽  
Ferric Ion ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Turn On ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Microwave-assisted synthesis of nitrogen doped carbon dots using prickly pear as the carbon source and its application as highly selective sensor for Cr(VI) and as patterning agent

2021 ◽  
Author(s):  
Shreya Bhatt ◽  
Gaurav Vyas ◽  
Parimal Paul
Keyword(s):  
Carbon Dots ◽  
Microwave Assisted Synthesis ◽  
Nitrogen Doped ◽  
Water Dispersible ◽  
Microwave Assisted ◽  
Bio Imaging ◽  
Natural Carbon ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon ◽  
Selective Sensor

Preparation of water dispersible carbon dots from inexpensive natural carbon precursors and its application for purposes such as sensing, bio-imaging, patterning agent etc. is showing growing interest in recent years....

Nitrogen doped carbon dots: mechanism investigation and their application for label free CA125 analysis

2019 ◽  
Vol 7 (19) ◽  
pp. 3053-3058 ◽  
Author(s):  
Yuanyuan Liu ◽  
Liping Jiang ◽  
Bijun Li ◽  
Xinyue Fan ◽  
Wei Wang ◽  
...  
Keyword(s):  
Nitrogen Doping ◽  
Competitive Adsorption ◽  
High Sensitivity ◽  
Label Free ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Turn On ◽  
Sensitivity And Selectivity ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Nitrogen-doped CDs (N-CDs) were firstly prepared by using pear juice as the carbon source and ethanediamine as a nitrogen doping precursor with a microwave assisted pyrolysis technique. Based on the fluorescence recovery induced by competitive adsorption and desorption, a label-free “turn on” fluorescence assay with high sensitivity and selectivity was proposed for the analysis of CA125.

Boronic acid functionalized nitrogen doped carbon dots for fluorescent turn-on detection of dopamine

2017 ◽  
Vol 184 (10) ◽  
pp. 4081-4090 ◽  
Author(s):  
J. S. Anjali Devi ◽  
A. H. Anulekshmi ◽  
S. Salini ◽  
R. S. Aparna ◽  
Sony George
Keyword(s):  
Boronic Acid ◽  
Carbon Dots ◽  
Nitrogen Doped ◽  
Turn On ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

Nitrogen-doped carbon dots as fluorescent probe for detection of curcumin based on the inner filter effect

RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 95054-95060 ◽  
Author(s):  
Qingyan Zhang ◽  
Caihong Zhang ◽  
Zengbo Li ◽  
Jinyin Ge ◽  
Chenzhong Li ◽  
...  
Keyword(s):  
Citric Acid ◽  
Carbon Source ◽  
Nitrogen Source ◽  
Carbon Dots ◽  
Inner Filter Effect ◽  
Nitrogen Doped ◽  
Filter Effect ◽  
One Step ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

A facile, economical and green one-step hydrothermal method for N-doped CDs was presented by using citric acid as carbon source and urea as nitrogen source. The fluorescence of N-doped CDs quenched dramatically from curcumin via inner filter effect.

scholarly journals Synthesis And Excited State Processes of Arrays Containing Amine-Rich Carbon Dots and Unsymmetrical Rylene Diimides

2020 ◽  
Author(s):  
Luka Dordevic ◽  
Michele Cacioppo ◽  
Francesca Arcudi ◽  
Tobias Scharl ◽  
Philipp Haines ◽  
...  
Keyword(s):  
Excited State ◽  
Carbon Dots ◽  
Electronic Communication ◽  
Time Resolved ◽  
Nitrogen Doped ◽  
Microwave Assisted ◽  
Donor Acceptor ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon ◽  
Energy Processes

<p>Combining carbon dots (CDs) with π-extended chromophores is an attractive way to study the electronic and energy processes of the former as a key step to many applications, including photosensing, photocatalysis, or photosensitization. CDs, in conjugation with chromophores, can have value in preparing donor-acceptor hybrids, and can also be used as scaffolds to support electronic communication between dyes. In this work, we conjugate two different rylene diimides, naphthalene and perylene diimides (NDI and PDI, respectively), with amorphous nitrogen-doped carbon dots. We take advantage of the imidization reaction between the amine rich surface of the carbon dots and the monimide monoanhydride precursors of NDIs and PDIs, under microwave assisted conditions. The resulting (nano)hybrids were characterized also by spectroscopic methods. In particular, time-resolved spectroscopy for the multichromophoric array, consisting of CDs and both rylene diimides, allowed us to elucidate the complex inter-chromophoric interactions taking place in the excited state.</p>

Facile synthesis of nitrogen-doped carbon dots with robust fluorescence in a strongly alkaline solution and a reversible fluorescence ‘off–on’ switch between strongly acidic and alkaline solutions

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108203-108208 ◽  
Author(s):  
Yingbo Liu ◽  
Liang Zhou ◽  
Yanan Li ◽  
Ruiping Deng ◽  
Hongjie Zhang
Keyword(s):  
Citric Acid ◽  
Alkaline Solution ◽  
Carbon Dots ◽  
Ammonium Hydroxide ◽  
Alkaline Solutions ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

In this study, hydrophilic nitrogen-doped carbon dots (N-CDs) have been hydrothermally prepared using citric acid and various concentrations of ammonium hydroxide.

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