ONE STEP GREEN SYNTHESIS OF CARBON QUANTUM DOTS AND ITS APPLICATION TOWARDS THE BIOELECTROANALYTICAL AND BIOLABELING STUDIES

2015 ◽  
Vol 182 ◽  
pp. 588-595 ◽  
Author(s):  
Rayammarakkar M. Shereema ◽  
Vandana Sankar ◽  
K.G Raghu ◽  
Talasila P. Rao ◽  
S.Sharath Shankar
RSC Advances ◽  
2017 ◽  
Vol 7 (35) ◽  
pp. 21969-21973 ◽  
Author(s):  
Zhan Wang ◽  
Lijun Cao ◽  
Yamei Ding ◽  
Rui Shi ◽  
Xiangjing Wang ◽  
...  

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.


2017 ◽  
Vol 4 (5) ◽  
pp. 161051 ◽  
Author(s):  
Yin-Cheng Yen ◽  
Chia-Chi Lin ◽  
Ping-Yu Chen ◽  
Wen-Yin Ko ◽  
Tzu-Rung Tien ◽  
...  

The green synthesis of nanowired photocatalyst composed of carbon quantum dots-titanium hybrid-semiconductors, CQDs/TiO 2 , are reported. Where graphite-based CQDs with a size less than 5 nm are directly synthesized in pure water electrolyte by a one-step electrochemistry approach and subsequently electrodeposited onto as-prepared TiO 2 nanowires through a voltage-driven reduction process. Electron paramagnetic resonance studies show that the CQDs can generate singlet oxygen and/or oxygen radicals to decompose the kinetic H 2 O 2 intermediate species upon UV light illumination. With the effect of peroxidase-like CQDs, photocurrent density of CQDs/TiO 2 is remarkably enhanced by a 6.4 factor when compared with that of as-prepared TiO 2 .


2021 ◽  
pp. 111414
Author(s):  
Jalaja Prasad Malavika ◽  
Chellappan Shobana ◽  
Murugesan Ragupathi ◽  
Ponnuchamy Kumar ◽  
Yun Sung Lee ◽  
...  

2016 ◽  
Vol 4 (14) ◽  
pp. 2412-2420 ◽  
Author(s):  
Aneeya K. Samantara ◽  
Santanu Maji ◽  
Arnab Ghosh ◽  
Bamaprasad Bag ◽  
Rupesh Dash ◽  
...  

A facile one-step approach has been developed for the synthesis of carbon quantum dots (CQDs) from Good’s buffer.


Toxins ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 438 ◽  
Author(s):  
Manyu Shao ◽  
Ming Yao ◽  
Sarah De Saeger ◽  
Liping Yan ◽  
Suquan Song

An eco-friendly and efficient one-step approach for the synthesis of carbon quantum dots (CDs) that encapsulated molecularly imprinted fluorescence quenching particles (MIFQP) and their application for the determination of zearalenone (ZEA) in a cereal sample are described in this study. CDs with high luminescence were first synthesized, and then encapsulated in the silica-based matrix through a non-hydrolytic sol-gel process. The resulting ZEA-imprinted particles exhibited not only an excellent specific molecular recognition of ZEA, but also good photostability and obvious template binding-induced fluorescence quenching. Under the optimized conditions, the fluorescence intensity of MIFQP was inversely proportional to the concentration of ZEA. By validation, the detection range of these fluorescence quenching materials for ZEA was between 0.02 and 1.0 mg L−1, and the detection limit was 0.02 mg L−1 (S/N = 3). Finally, the MIFQP sensor was successfully applied for ZEA determination in corn with recoveries from 78% to 105% and the relative standard deviation (RSD %) was lower than 20%, which suggests its potential in actual applications.


2018 ◽  
Vol 42 (8) ◽  
pp. 5814-5821 ◽  
Author(s):  
Daraksha Bano ◽  
Vijay Kumar ◽  
Vikas Kumar Singh ◽  
Syed Hadi Hasan

On–off–on detection of Hg2+ and GSH using green-synthesized CQDs from T. indica leaves for the first time.


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