A core–shell CdTe quantum dots molecularly imprinted polymer for recognizing and detecting p-nitrophenol based on computer simulation

RSC Advances ◽  
2015 ◽  
Vol 5 (90) ◽  
pp. 73424-73433 ◽  
Author(s):  
Yingchun Wang ◽  
Ningwei Wang ◽  
Xiaoni Ni ◽  
Qianqian Jiang ◽  
Wenming Yang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Computer Simulation ◽  
Molecular Imprinting ◽  
Molecularly Imprinted Polymer ◽  
Cdte Quantum Dots ◽  
Core Shell ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Molecular Imprinting Technology

A novel molecular imprinting technology, combined with computer simulation and QDs, was used to detect 4-NP.

Application of Response Surface Methodology to Synthesize Appropriate Molecularly Imprinted Polymer for Diazinon

2014 ◽  
Vol 605 ◽  
pp. 67-70 ◽  
Author(s):  
Mohsen Rahiminezhad ◽  
Seyed Jamaleddin Shahtaheri ◽  
Mohammad Reza Ganjali ◽  
Abbas Rahimi Rahimi Forushani
Keyword(s):  
Molecular Imprinting ◽  
Molecularly Imprinted Polymer ◽  
Binding Sites ◽  
Capillary Electrochromatography ◽  
Template Molecule ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Functional Monomers ◽  
Molecular Imprinting Technology ◽  
Cross Linker

Molecular imprinting technology has become an interesting research area to the preparation of specific sorbent material for environmental and occupational sample preparation techniques (1). In the molecular imprinting technology, specific binding sites have been formed in polymeric matrix, which often have an affinity and selectivity similar to antibody-antigen systems (2). In molecular imprinted technology, functional monomers are arranged in a complementary configuration around a template molecule, then, cross-linker and solvent are also added and the mixture is treated to give a porous material containing nono-sized binding sites. After extraction of the template molecule by washing, vacant imprinted sites will be left in polymer, which are available for rebinding of the template or its structural analogue (3). The stability, convention of preparation and low cost of these materials make them particularly attractive (4). These synthetic materials have been used for capillary electrochromatography (5), chromatography columns (6), sensors (7), and catalyze system (8). Depending on the molecular imprinting approach, different experimental variables such as the type and amounts of functional monomers, porogenic solvent, initiator, monomer to cross-linker ratio, temperature, and etc may alter the properties of the final polymeric materials. In this work, chemometric approach based on Central Composite Design (CCD) was used to design the experiments as well as to find the optimum conditions for preparing appropriate diazinon molecularly imprinted polymer.

scholarly journals Rapid and selective recognition of Vibrio parahaemolyticus assisted by perfluorinated alkoxysilane modified molecularly imprinted polymer film

RSC Advances ◽  
2020 ◽  
Vol 10 (24) ◽  
pp. 14305-14312 ◽  
Author(s):  
Kaiyue Fu ◽  
Huiwen Zhang ◽  
Yuanyuan Guo ◽  
Juan Li ◽  
Heran Nie ◽  
...  
Keyword(s):  
Polymer Film ◽  
Molecular Imprinting ◽  
Molecularly Imprinted Polymer ◽  
Vibrio Parahaemolyticus ◽  
Selective Recognition ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
High Affinity ◽  
Molecular Imprinting Technology

Molecular imprinting technology offers a means of tailor-made materials with high affinity and selectivity for certain analysts.

scholarly journals CdTe0.5S0.5/ZnS Quantum Dots Embedded in a Molecularly Imprinted Polymer for the Selective Optosensing of Dopamine

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 693 ◽  
Author(s):  
Kiana Khadem-Abbassi ◽  
Hervé Rinnert ◽  
Lavinia Balan ◽  
Zahra Doumandji ◽  
Olivier Joubert ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ethylene Glycol ◽  
Molecularly Imprinted Polymer ◽  
Limit Of Detection ◽  
Low Cost ◽  
Core Shell ◽  
Selective Detection ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Cross Linker

This work describes the preparation of molecularly imprinted polymer (MIP)-modified core/shell CdTe0.5S0.5/ZnS quantum dots (QDs). The QDs@MIP particles were used for the selective and sensitive detection of dopamine (DA). Acrylamide, which is able to form hydrogen bonds with DA, and ethylene glycol dimethylacrylate (EGDMA) as cross-linker were used for the preparation of the MIP. Highly cross-linked polymer particles with sizes up to 1 µm containing the dots were obtained after the polymerization. After the removal of the DA template, MIP-modified QDs (QDs@MIP) exhibit a high photoluminescence (PL) with an intensity similar to that of QDs embedded in the nonimprinted polymer (NIP). A linear PL decrease was observed upon addition of DA to QDs@MIP and the PL response was in the linear ranges from 2.63 µM to 26.30 µM with a limit of detection of 6.6 nM. The PL intensity of QDs@MIP was quenched selectively by DA. The QDs@MIP particles developed in this work are easily prepared and of low cost and are therefore of high interest for the sensitive and selective detection of DA in biological samples.

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