Paper carbon dot based fluorescence sensor for distinction of organic and inorganic sulphur in analytes

RSC Advances ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 57327-57334 ◽  
Author(s):  
Sristi Majumdar ◽  
Upama Baruah ◽  
Gitanjali Majumdar ◽  
Debajit Thakur ◽  
Devasish Chowdhury
Keyword(s):  
Fluorescence Sensor ◽  
Carbon Dot ◽  
Inorganic Sulphur

In this work a paper carbon dot (PCDs) based fluorescence sensor was developed which can distinguish between the organic and inorganic sulphur in analytes.

Carbon Dot based Fluorescence sensor for Retinoic acid

2018 ◽  
Vol 3 (2) ◽  
pp. 673-677 ◽  
Author(s):  
Sristi Majumdar ◽  
Tuhin Bhattacharjee ◽  
Debajit Thakur ◽  
Devasish Chowdhury
Keyword(s):  
Retinoic Acid ◽  
Fluorescence Sensor ◽  
Carbon Dot

Dual-Emissive Near-Infrared Carbon Dot-Based Ratiometric Fluorescence Sensor for Lysozyme

2022 ◽  
Author(s):  
Wan Ji ◽  
Jialuo Yu ◽  
Jianxia Cheng ◽  
Longwen Fu ◽  
Zhiyang Zhang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Fluorescence Sensor ◽  
Ratiometric Fluorescence ◽  
Carbon Dot

Fluorescence turn-on and turn-off sensing of pesticides by carbon dot-based sensor

2019 ◽  
Vol 43 (30) ◽  
pp. 12137-12151 ◽  
Author(s):  
Paulami Mandal ◽  
Dibakar Sahoo ◽  
Priyatosh Sarkar ◽  
Kaushik Chakraborty ◽  
Sukhen Das
Keyword(s):  
Aqueous Solution ◽  
Green Chemistry ◽  
Fluorescence Sensor ◽  
Carbon Dot ◽  
Turn On ◽  
Fluorescence Turn On

Green chemistry C-Dot-based ‘turn-on’ and ‘turn-off’ fluorescence sensor for pesticides [imidacloprid (LOD ∼ 0.013 μM) and tetradifon (LOD ∼ 0.04 μM)] in aqueous solution.

scholarly journals “Turn on” Fluorescence Sensor of Glutathione Based on Inner Filter Effect of Co-Doped Carbon Dot/Gold Nanoparticle Composites

2021 ◽  
Vol 23 (1) ◽  
pp. 190
Author(s):  
Thi-Hoa Le ◽  
Ji-Hyeon Kim ◽  
Sang-Joon Park
Keyword(s):  
Gold Nanoparticle ◽  
Fluorescence Intensity ◽  
Limit Of Detection ◽  
Inner Filter Effect ◽  
Fluorescence Sensor ◽  
Fluorescence Emission Spectrum ◽  
Nitrogen And Phosphorus ◽  
Carbon Dot ◽  
Filter Effect ◽  
Co Doped

Glutathione (GSH) is a thiol that plays a significant role in nutrient metabolism, antioxidant defense and the regulation of cellular events. GSH deficiency is related to variety of diseases, so it is useful to develop novel approaches for GSH evaluation and detection. In this study we used nitrogen and phosphorus co-doped carbon dot-gold nanoparticle (NPCD–AuNP) composites to fabricate a simple and selective fluorescence sensor for GSH detection. We employed the reductant potential of the nitrogen and phosphorus co-doped carbon dots (NPCDs) themselves to form AuNPs, and subsequently NPCD–AuNP composites from Au3+. The composites were characterized by using a range of spectroscopic and electron microscopic techniques, including electrophoretic light scattering and X-ray diffraction. The overlap of the fluorescence emission spectrum of NPCDs and the absorption spectrum of AuNPs resulted in an effective inner filter effect (IFE) in the composite material, leading to a quenching of the fluorescence intensity. In the presence of GSH, the fluorescence intensity of the composite was recovered, which increased proportionally to increasing the GSH concentration. In addition, our GSH sensing method showed good selectivity and sensing potential in human serum with a limit of detection of 0.1 µM and acceptable results.

Synthesis and Characterization of a pH Fluorescence Sensor with Tunable Response Range

2012 ◽  
Vol 40 (1) ◽  
pp. 77
Author(s):  
Yong-Shan MA ◽  
Feng-Xia ZHANG ◽  
Pei-Gang LI ◽  
Jun-Sen WU ◽  
Hui-Xue REN
Keyword(s):  
Fluorescence Sensor ◽  
Synthesis And Characterization ◽  
Response Range

Non-enzymatic determination of purine nucleotides using a carbon dot modified glassy carbon electrode

2019 ◽  
Vol 11 (30) ◽  
pp. 3866-3873 ◽  
Author(s):  
R. Karthikeyan ◽  
D. James Nelson ◽  
S. Abraham John
Keyword(s):  
Glassy Carbon ◽  
Low Cost ◽  
Phosphate Buffer Solution ◽  
Purine Nucleotides ◽  
Buffer Solution ◽  
Solution Ph ◽  
Carbon Dot ◽  
Enzymatic Determination ◽  
Sensitive Determination

Selective and sensitive determination of one of the purine nucleotides, inosine (INO) using a low cost carbon dot (CD) modified glassy carbon (GC) electrode in 0.2 M phosphate buffer solution (pH 7.2) was demonstrated in this paper.

A facile and sensitive ratiometric fluorescence sensor for rapid visual monitoring of trace resorcinol

2021 ◽  
Vol 330 ◽  
pp. 129390
Author(s):  
Wang Ren ◽  
Ying Zhang ◽  
Wen Yong Liang ◽  
Xiu Pei Yang ◽  
Wei Dong Jiang ◽  
...  
Keyword(s):  
Fluorescence Sensor ◽  
Ratiometric Fluorescence ◽  
Visual Monitoring
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