Simultaneous detection of folic acid and methotrexate by an optical sensor based on molecularly imprinted polymers on dual-color CdTe quantum dots

2017 ◽  
Vol 996 ◽  
pp. 64-73 ◽  
Author(s):  
Ali A. Ensafi ◽  
Parisa Nasr-Esfahani ◽  
B. Rezaei
Keyword(s):  
Quantum Dots ◽  
Folic Acid ◽  
Optical Sensor ◽  
Molecularly Imprinted Polymers ◽  
Simultaneous Detection ◽  
Cdte Quantum Dots ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Dual Color

scholarly journals Deposition of CdTe quantum dots on microfluidic paper chips for rapid fluorescence detection of pesticide 2,4-D

The Analyst ◽  
2019 ◽  
Vol 144 (4) ◽  
pp. 1282-1291 ◽  
Author(s):  
Zhong Zhang ◽  
Xin Ma ◽  
Mengfan Jia ◽  
Bowei Li ◽  
Jianhui Rong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Detection ◽  
Molecularly Imprinted Polymers ◽  
Cdte Quantum Dots ◽  
Sensitive Detection ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Specific Recognition

Novel fluorescent microfluidic paper chips were developed by the combination of molecularly imprinted polymers and microfluidic paper chips with CdTe quantum dots for the specific recognition and sensitive detection of the pesticide 2,4-D.

scholarly journals Dummy Molecularly Imprinted Polymers-Capped CdTe Quantum Dots for the Fluorescent Sensing of 2,4,6-Trinitrotoluene

2013 ◽  
Vol 5 (16) ◽  
pp. 8146-8154 ◽  
Author(s):  
Shoufang Xu ◽  
Hongzhi Lu ◽  
Jinhua Li ◽  
Xingliang Song ◽  
Aixiang Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Molecularly Imprinted Polymers ◽  
Cdte Quantum Dots ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Fluorescent Sensing

Do voltammetry electrodes modified with MIPs really work? The role of large molecules: folic acid as a probe

2014 ◽  
Vol 6 (17) ◽  
pp. 6658-6667 ◽  
Author(s):  
Abigail Vasconcelos Pereira ◽  
Priscila Cervini ◽  
Éder Tadeu Gomes Cavalheiro
Keyword(s):  
Folic Acid ◽  
Molecularly Imprinted Polymers ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Large Molecules

There are many uncertainties concerning the use of molecularly imprinted polymers (MIPs) as electrode modifiers.

scholarly journals Fluorescent Nanosensor based on Molecularly Imprinted Polymers Coated on Graphene Quantum Dots for Fast Detection of Antibiotics

2018 ◽  
Author(s):  
Tongchang Zhou ◽  
Arnab Halder ◽  
Yi Sun
Keyword(s):  
Quantum Dots ◽  
Fluorescence Intensity ◽  
Molecularly Imprinted Polymers ◽  
Limit Of Detection ◽  
Sol Gel ◽  
Graphene Quantum Dots ◽  
Carboxyl Groups ◽  
One Pot ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

In this work, we firstly explored a mild, clean, and highly efficient approach for the synthesis of graphene quantum dots (GQDs). GQDs with carboxyl groups or amino groups, were prepared from one-pot environmentally friendly method assisted by hydrogen peroxide, respectively. It was proved that carboxyl groups played an important role in the fluorescence quenching. Based on these findings, we developed a novel fluorescent nanosensor by combining molecularly imprinted polymers (MIPs) with carboxyl functionalized GQDs for the determination of tetracycline (TC) in aqueous samples. The nanocomposite was prepared using a sol-gel process. GQDs-MIPs showed strong fluorescent emission at 410 nm when excited at 360 nm, which was subsequently quenched in the presence of TC. Under optimum conditions, the fluorescence intensity of GQDs-MIPs decreased in response to the increase of TC concentration with good linearity rage of 1.0-104 µg L-1. The limit of detection was determined to be 1 µg L-1. The fluorescence intensity of GQDs-MIPs was more strongly quenched by TC compared to the corresponding non-imprinted polymers, GQDs-NIPs. With the high sensitivity, the material was also successfully worked for the detection of TC in real spiked milk samples.

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