scholarly journals Carbon quantum dots as a fluorophore for “inner filter effect” detection of metronidazole in pharmaceutical preparations

RSC Advances ◽  
2019 ◽  
Vol 9 (65) ◽  
pp. 38174-38182 ◽  
Author(s):  
Jianghong Tang ◽  
Yaheng Zhang ◽  
Yuhai Liu ◽  
Dan Liu ◽  
Hengfei Qin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Absorption Band ◽  
Hydrothermal Process ◽  
Pharmaceutical Preparations ◽  
Inner Filter Effect ◽  
Carbon Quantum Dots ◽  
Houttuynia Cordata ◽  
Filter Effect

CDs were prepared using Houttuynia cordata via hydrothermal process, the absorption band of MNZ can well overlap the excitation bands of CDs, a simple, rapid approach for detection of MNZ was established on the basis of IFE.

Simple and sensitive fluorescence sensor for methotrexate detection based on the inner filter effect of N, S co-doped carbon quantum dots

2019 ◽  
Vol 1047 ◽  
pp. 179-187 ◽  
Author(s):  
Yanan Zhao ◽  
Shiying Zou ◽  
Danqun Huo ◽  
Changjun Hou ◽  
Mei Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Inner Filter Effect ◽  
Carbon Quantum Dots ◽  
Fluorescence Sensor ◽  
Filter Effect ◽  
Co Doped

Fluorometric discrimination of tyrosine isomers based on the inner filter effect of chiral Au nanoparticles on MoS2 quantum dots

2021 ◽  
Author(s):  
Qianqian Zhao ◽  
Datong Wu ◽  
Zhengzhi Yin ◽  
Wenrong Cai ◽  
Haifeng Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Au Nanoparticles ◽  
Inner Filter Effect ◽  
Filter Effect

A fluorescent chiral sensor is proposed based on the inner filter effect (IFE) of chiral Au nanoparticles (AuNPs) on MoS2 quantum dots (MoS2 QDs), which can be used for the...

Dual mode detection of amifostine based on gold nanoparticles and sulfanilic acid functionalized graphene quantum dots

2018 ◽  
Vol 42 (14) ◽  
pp. 12126-12133 ◽  
Author(s):  
Ning Li ◽  
Weidan Na ◽  
Hua Liu ◽  
Xingguang Su
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Fluorescence Detection ◽  
Graphene Quantum Dots ◽  
Inner Filter Effect ◽  
Sulfanilic Acid ◽  
Functionalized Graphene ◽  
Dual Mode ◽  
Mode Detection ◽  
Filter Effect

Visual and fluorescence detection of amifostine based on the inner filter effect of gold nanoparticles on sulfanilic acid functionalized graphene quantum dots.

Glutathione Regulated Inner Filter Effect of MnO2Nanosheets on Boron Nitride Quantum Dots for Sensitive Assay

2019 ◽  
Vol 91 (9) ◽  
pp. 5762-5767 ◽  
Author(s):  
Chao Peng ◽  
Huanhuan Xing ◽  
Xiushuang Fan ◽  
Yuan Xue ◽  
Jing Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Inner Filter Effect ◽  
Sensitive Assay ◽  
Filter Effect

Phosphorescent inner filter effect-based sensing of xanthine oxidase and its inhibitors with Mn-doped ZnS quantum dots

Nanoscale ◽  
2018 ◽  
Vol 10 (18) ◽  
pp. 8477-8482 ◽  
Author(s):  
Dandan Tang ◽  
Jinyi Zhang ◽  
Rongxin Zhou ◽  
Ya-Ni Xie ◽  
Xiandeng Hou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Uric Acid ◽  
Xanthine Oxidase ◽  
Inner Filter Effect ◽  
Filter Effect ◽  
Spectral Overlap ◽  
Mn Doped ◽  
Enzymatic Product

Large bandgap semiconductor ZnS QDs (Mn-doped) were explored for inner filter effect-based sensing of xanthine oxidase and its inhibitors, due to the maximum spectral overlap between the absorption of uric acid (the enzymatic product of xanthine oxidase) and the excitation of Mn-doped ZnS QDs.

UV-emitting polyelectrolyte-modified MoS2 quantum dots for selective determination of nitrophenol in water samples based on inner filter effect

2020 ◽  
Vol 98 (5) ◽  
pp. 222-227
Author(s):  
Keke Ning ◽  
Guoqiang Xiang ◽  
Cuicui Wang ◽  
Jingxing Wang ◽  
Xiaohong Qiao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Water Samples ◽  
Sodium Molybdate ◽  
Inner Filter Effect ◽  
Pond Water ◽  
Emission Peak ◽  
Selective Determination ◽  
Uv Emission ◽  
Filter Effect

In this work, poly(sodium 4-styrenesulfonate) (PSS) modified molybdenum disulfide quantum dots (MoS2-PSS QDs) were synthesized via a simple hydrothermal method using l-cysteine and anhydrous sodium molybdate as precursors and PSS as a modification reagent, and a selective and sensitive fluorescent sensing method for the determination of p-nitrophenol (p-NP) based on their UV emission was developed. The obtained MoS2-PSS QDs have an obvious UV emission peak (390 nm) with quantum yield of 5.13%. The strong absorption peak of p-NP at 400 nm has large spectral overlap with the UV emission peak (390 nm) of MoS2-PSS QDs. Because of this p-NP absorption, the fluorescence of MoS2-PSS QDs at 390 nm is quenched with the introduction of p-NP via the inner filter effect (IFE) and the decreased fluorescence intensity was linearly proportional to the p-NP concentration in the range of 1–20 μmol/L, leading to a detection limit of 0.13 μmol/L for p-NP. The MoS2 QDs-based fluorescent probe for p-NP is sensitive and selective and was successfully applied in the determination of p-NP in the pond water samples with satisfactory results.

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