Rapid and sensitive detection of Salmonella typhimurium using aptamer-conjugated carbon dots as fluorescence probe

2015 ◽  
Vol 7 (5) ◽  
pp. 1701-1706 ◽  
Author(s):  
Renjie Wang ◽  
Yi Xu ◽  
Tao Zhang ◽  
Yan Jiang

Aptamer-conjugated carbon dot complexes were developed and first used as a novel fluorescence probe for sensitive quantitative detection of Salmonella typhimurium.

RSC Advances ◽  
2016 ◽  
Vol 6 (57) ◽  
pp. 52255-52263 ◽  
Author(s):  
Yusheng Yuan ◽  
Yalan Wang ◽  
Shaopu Liu ◽  
Yuanfang Li ◽  
Ruilin Duan ◽  
...  

A carbon dot-based fluorescence probe was designed for detecting 6-mercaptopurine (6-MP) via fluorescence quenching.


2018 ◽  
Vol 42 (8) ◽  
pp. 6399-6407 ◽  
Author(s):  
Satyabrat Gogoi ◽  
Raju Khan

In the current study, we report the near infrared (NIR) upconversion (in the range of 850–950 nm) properties of carbon nanoparticles and their utility as a fluorescence probe for selective and sensitive detection of glutathione (GSH).


2019 ◽  
Vol 7 (33) ◽  
pp. 10309-10317 ◽  
Author(s):  
Satyabrat Gogoi ◽  
Rashmita Devi ◽  
Hemant Sankar Dutta ◽  
Manobjyoti Bordoloi ◽  
Raju Khan

A dual light emitting fully carbon-based nanohybrid system comprising of glutathione-functionalized reduced carbon dots and graphene quantum dots is fabricated as ratiometric fluorescence probe for As(iii).


RSC Advances ◽  
2021 ◽  
Vol 11 (37) ◽  
pp. 22993-23001
Author(s):  
Weizhen Wu ◽  
Xiaoyi Wu ◽  
Miao He ◽  
Xiaolin Yuan ◽  
Jiaping Lai ◽  
...  

A novel carbon dot/polyacrylamide composite hydrogel film with stable blue fluorescence performance was fabricated by merging a hydrogel film and carbon dots, which was used for highly selective and quantitative detection of ONZ in real samples.


Polymers ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3788
Author(s):  
Hua Zeng ◽  
Zhiyuan Hu ◽  
Chang Peng ◽  
Lei Deng ◽  
Suchun Liu

Due to its lethal effect on the human body and other creatures, Cr(VI) ions have attained widespread public attention, and an effective adsorbent for removing Cr(VI) ions is vital. Chitosan (CS)/cellulose nanocrystals grafted with carbon dots (CNCD) composite hydrogel with strong sorption ability and sensitive detection ability for Cr(VI) was formed. The cellulose nanocrystals (CN) offered a natural skeleton for assembling 3D porous structures, and then improved the sorption ability for Cr(VI); moreover, carbon dots (CD) acted as a fluorescent probe for Cr(VI) and provided Cr(VI) adsorption sites. With a maximum adsorption capacity of 217.8 mg/g, the CS/CNCD composite hydrogel exhibited efficient adsorption properties. Meanwhile, with a detection limit of 0.04 μg/L, this hydrogel was used for selective and quantitative detection of Cr(VI). The determination of Cr(VI) was based on the inner filter effect (IFE) and static quenching. This hydrogel retained its effective adsorption ability even after four repeated regenerations. Furthermore, the economic feasibility of the CS/CNCD composite hydrogel over activated carbon was confirmed using cost analysis. This study provided one new method for producing low-cost adsorbents with effective sorption and sensitive detection for Cr(VI).


The Analyst ◽  
2020 ◽  
Vol 145 (3) ◽  
pp. 1056-1061 ◽  
Author(s):  
Yali Yang ◽  
Haijuan Zhang ◽  
Jia Chen ◽  
Zhan Li ◽  
Liang Zhao ◽  
...  

Red emitting carbon dots derived from p-phenylenediamine were successfully grafted onto the surface of porous silica spheres which served as a new stationary phase for hydrophilic interaction chromatography with enhanced selectivity.


2014 ◽  
Vol 2 (45) ◽  
pp. 7964-7970 ◽  
Author(s):  
Manman Yang ◽  
Hao Li ◽  
Juan Liu ◽  
Weiqian Kong ◽  
Shunyan Zhao ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50802-50811 ◽  
Author(s):  
Ya Peng ◽  
Xinyan Zhou ◽  
Nannan Zheng ◽  
Lingyu Wang ◽  
Xingping Zhou

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.


2015 ◽  
Vol 71 ◽  
pp. 470-475 ◽  
Author(s):  
Ali Barati ◽  
Mojtaba Shamsipur ◽  
Hamid Abdollahi

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