scholarly journals Study on the Influence of Carbon Quantum Dots on Electrogenerated Chemiluminescence Energy Transfer Sensing System of DNA

2012 ◽  
Vol 70 (11) ◽  
pp. 1283 ◽  
Author(s):  
Fan Yang ◽  
Lingli Wang ◽  
Zhihui Guo
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Carbon Quantum Dots ◽  
Electrogenerated Chemiluminescence ◽  
Sensing System

Electrogenerated chemiluminescence detection of trace level pentachlorophenol using carbon quantum dots

The Analyst ◽  
2013 ◽  
Vol 138 (7) ◽  
pp. 2038 ◽  
Author(s):  
Jiezhen Li ◽  
Niya Wang ◽  
ThanhThuy Tran.T ◽  
Chen'an Huang ◽  
Lan Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Quantum Dots ◽  
Electrogenerated Chemiluminescence ◽  
Chemiluminescence Detection ◽  
Trace Level

FRET Study Between Carbon Quantum Dots and Malachite Green by Steady-State and Time-Resolved Fluorescence Spectroscopy

2020 ◽  
Vol 10 (3) ◽  
pp. 178-188
Author(s):  
Bipin Rooj ◽  
Ankita Dutta ◽  
Debojyoti Mukherjee ◽  
Sahidul Islam ◽  
Ujjwal Mandal
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Fluorescence Spectroscopy ◽  
Malachite Green ◽  
Dye Degradation ◽  
Fluorescence Emission ◽  
Carbon Quantum Dots ◽  
Time Resolved Fluorescence ◽  
Physical Processes ◽  
Time Resolved

Background: Understanding the interaction between different organic dyes and carbon quantum dots helps us to understand several photo physical processes like electron transfer, energy transfer, molecular sensing, drug delivery and dye degradation processes etc. Objective: The primary objective of this study is to whether the carbon quantum dots can act as an electron donor and can participate in the different photo physical processes. Methods: In this work, Carbon Quantum Dots (CQDLs) are synthesized in most economical and simple carbonization method where petals of Nelumbo nucifera L. are used as a carbon precursor. The synthesized CQDLs were characterized by using experimental techniques like UV−Vis absorption, FT-IR, Transmission Electron Microscopy (TEM), steadystate and time-resolved fluorescence spectroscopy. Results: The spectral analysis shows that the so synthesized CQDLs are spherical in shape and its diameter is around 4.2 nm. It shows the fluorescence emission maximum at 495 nm with a quantum yield of 4%. In this work the interaction between Carbon Quantum Dots (CQDLs) and an organic dye Malachite Green (MG) is studied using fluorescence spectroscopic technique under ambient pH condition (At pH 7). The quenching mechanism of CQDLs with MG was investigated using Stern-Volmer equation and time-resolved fluorescence lifetime studies. The results show that the dominant process of fluorescence quenching is attributed to Forster Resonance Energy Transfer (FRET) having a donor acceptor distance of 53 Å where CQDLs act as a donor and MG acts as an acceptor. Conclusion: This work has a consequence that CQDLs can be used as a donor species for different photo physical processes such as photovoltaic cell, dye sensitized solar cell, and also for antioxidant activity study.

Glycine-functionalized carbon quantum dots as chemiluminescence sensitization for detection of m-phenylenediamine

2015 ◽  
Vol 7 (3) ◽  
pp. 1133-1139 ◽  
Author(s):  
Zhengyu Yan ◽  
Yan Yu ◽  
Jianqiu Chen
Keyword(s):  
Quantum Dots ◽  
Potassium Permanganate ◽  
Carbon Quantum Dots ◽  
Sensing System ◽  
System P

A novel sensing system has been designed for the detection of m-phenylenediamine based on carbon quantum dots (CQDs)-improved chemiluminescence (CL) in a luminol–potassium permanganate (KMnO4) system.

Enhancing Nonradiative Energy Transfer between Nitridized Carbon Quantum Dots and Monolayer WS2

2019 ◽  
Vol 123 (41) ◽  
pp. 25456-25463
Author(s):  
Weitao Su ◽  
Jiake Li ◽  
Fei Chen ◽  
Li Fu ◽  
Su Ding ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Transfer ◽  
Carbon Quantum Dots ◽  
Nonradiative Energy Transfer

Sensitive and selective sensing system of metallothioneins based on carbon quantum dots and gold nanoparticles

2020 ◽  
Vol 1125 ◽  
pp. 177-186 ◽  
Author(s):  
Lian Duan ◽  
Xiaoyu Du ◽  
Huijun Zhao ◽  
Yue Sun ◽  
Wen Liu
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Carbon Quantum Dots ◽  
Sensing System
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