Fluorometric determination of pesticides and organophosphates using nanoceria as a phosphatase mimic and an inner filter effect on carbon nanodots

2019 ◽  
Vol 186 (2) ◽  
Author(s):  
Jinchao Wei ◽  
Yu Yang ◽  
Jiayi Dong ◽  
Shuangpeng Wang ◽  
Peng Li
Keyword(s):  
Inner Filter Effect ◽  
Carbon Nanodots ◽  
Fluorometric Determination ◽  
Filter Effect

Nitrogen and chlorine dual-doped carbon nanodots for determination of curcumin in food matrix via inner filter effect

2019 ◽  
Vol 280 ◽  
pp. 195-202 ◽  
Author(s):  
Qin Hu ◽  
Lu Gao ◽  
Sheng-qi Rao ◽  
Zhen-quan Yang ◽  
Tao Li ◽  
...  
Keyword(s):  
Inner Filter Effect ◽  
Carbon Nanodots ◽  
Food Matrix ◽  
Filter Effect

scholarly journals Highly Luminescent and Biocompatible P and N Co-Doped Passivated Carbon Nanodots for the Sensitive and Selective Determination of Rifampicin Using the Inner Filter Effect

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2275 ◽  
Author(s):  
Baraa Al-Hashimi ◽  
Heshu Sulaiman Rahman ◽  
Khalid Mohammad Omer
Keyword(s):  
Limit Of Detection ◽  
Low Cost ◽  
Fluorescence Emission ◽  
Inner Filter Effect ◽  
Single Step ◽  
Carbon Nanodots ◽  
Pharmaceutical Dosage Forms ◽  
Selective Determination ◽  
Filter Effect

The determination of rifampicin in pharmaceutical dosage forms using a rapid, sensitive, selective, biocompatible, and low-cost method is of vital importance in the pharmaceutical analysis field to ensure its concentration is within the effective range when administered. In this study, nitrogen-and-phosphorous-doped carbon nanodots (CNDs) were prepared using a single-step hydrothermal method with ciprofloxacin as the starting material. The CNDs showed a highly intense blue fluorescence emission centered at 450 nm, with a photoluminescence quantum yield of about 51%. Since the absorption of rifampicin was the same as the excitation spectrum of CNDs, inner filter effect (IFE) quenching occurred and it was used as a successful detection platform for the analysis of rifampicin in capsules. The detection platform showed a dynamic linear range from 1 to 100 μM (R2 = 0.9940) and the limit of detection was 0.06 μM (when S/N = 3). The average spike recovery percentage for rifampicin in the capsule samples was 100.53% (n = 5). Moreover, the sub-chronic cytotoxicity of CNDs was evaluated on healthy male mice (Balb/c) drenched with different amounts of CNDs (10 and 50 mg/kg). During this study period, no mortalities or toxicity signs were recorded in any of the experimental subjects. Based on the cytotoxicity experiment, the proposed nano-probe is considered safe and biocompatible.

Selective determination of acetone by carbon nanodots based on inner filter effect

2019 ◽  
Vol 216 ◽  
pp. 290-295 ◽  
Author(s):  
Liman Sai ◽  
Xingyang Wang ◽  
Quanhong Chang ◽  
Wangzhou Shi ◽  
Lei Huang
Keyword(s):  
Inner Filter Effect ◽  
Carbon Nanodots ◽  
Selective Determination ◽  
Filter Effect

Sensitive Naked‐eye and Fluorescence Determination of Acetylcholinesterase Activity using Cu/Ag Nanoclusters Based on Inner Filter Effect

2019 ◽  
Vol 4 (25) ◽  
pp. 7639-7644
Author(s):  
Yanyue Li ◽  
Yanling Hu ◽  
Yu He ◽  
Yili Ge ◽  
Gongwu Song ◽  
...  
Keyword(s):  
Inner Filter Effect ◽  
Acetylcholinesterase Activity ◽  
Naked Eye ◽  
Fluorescence Determination ◽  
Filter Effect ◽  
Ag Nanoclusters
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