A ratiometric nanosensor based on fluorescent carbon dots for label-free and highly selective recognition of DNA

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44587-44597 ◽  
Author(s):  
Shan Huang ◽  
Lumin Wang ◽  
Fawei Zhu ◽  
Wei Su ◽  
Jiarong Sheng ◽  
...  

A ratiometric nanosensor based on fluorescent carbon dots for label-free and highly selective recognition of DNA.

Author(s):  
Sathish Rajendran ◽  
Daggupati Venkata Ramanaiah ◽  
Subrata Kundu ◽  
Susanta Kumar Bhunia

2020 ◽  
Vol 187 (8) ◽  
Author(s):  
Shuai Chang ◽  
Bin Bin Chen ◽  
Jian Lv ◽  
Essy Kouadio Fodjo ◽  
Ruo Can Qian ◽  
...  

NANO ◽  
2016 ◽  
Vol 11 (01) ◽  
pp. 1650012 ◽  
Author(s):  
Dan Zhang ◽  
Yingnan Jiang ◽  
Chuanxi Wang

A one-step facile method of synthesizing fluorescent carbon dots (CDs) has been demonstrated, whereby fluorescent CDs are produced through hydrothermal treatment of glucose in the presence of H3BO3 with a fluorescence quantum yield of 14.5%. It is found that spherical CDs have an average size of 3.7[Formula: see text]nm as well as good monodispersion in aqueous solution. The added Cr (VI) selectively leads to the inner filter effect (IFE)-based fluorescence quenching of the CDs. Such fluorescence responses can be used for well quantifying Cr (VI) in the range of 0.05–200[Formula: see text][Formula: see text]M. Significantly, the CDs possess negligible cytotoxicity, excellent biocompatibility and high selectivity. All these features are favorable for label-free monitoring of Cr (VI) in complex biological samples. It was then successfully applied for the fluorescence imaging of intracellular Cr (VI). As an efficient chemosensor, the CDs hold great promise in broadening their applications in biological systems.


2021 ◽  
pp. 150372
Author(s):  
Preeyanuch Supchocksoonthorn ◽  
Rattanavinan Hanchaina ◽  
Ma Concepcion Alvior Sinoy ◽  
Mark Daniel G. de Luna ◽  
Thaned Kangsamaksin ◽  
...  

2018 ◽  
Vol 42 (16) ◽  
pp. 13297-13307 ◽  
Author(s):  
N. Murugan ◽  
Ashok K. Sundramoorthy

Fluorescent carbon dots were derived from Borassus flabellifer flowers by thermal pyrolysis method and used for label-free highly selective and sensitive detection of Fe3+ ions.


RSC Advances ◽  
2020 ◽  
Vol 10 (60) ◽  
pp. 36253-36264
Author(s):  
Shagun Kainth ◽  
Banibrata Maity ◽  
Soumen Basu

The role of passivation in CDs using different nitrogen precursors to evaluate its sensing proficiency towards creatinine quantification.


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