scholarly journals Selective Recognition of Gallic Acid Using Hollow Magnetic Molecularly Imprinted Polymers with Double Imprinting Surfaces

Polymers ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 175
Author(s):  
Jiawei Li ◽  
Xinji Zhou ◽  
Yu Yan ◽  
Dianling Shen ◽  
Danqing Lu ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Molecularly Imprinted Polymers ◽  
Response Strength ◽  
Separation And Purification ◽  
Complex Matrix ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Magnetic Molecularly Imprinted Polymers ◽  
Better Than

Gallic acid is widely used in the field of food and medicine due to its diversified bioactivities. The extraction method with higher specificity and efficiency is the key to separate and purify gallic acid from complex biological matrix. Herein, using self-made core-shell magnetic molecularly imprinted polymers (MMIP) with gallic acid as template, a hollow magnetic molecularly imprinted polymer (HMMIP) with double imprinting/adsorption surfaces was prepared by etching the mesoporous silica intermediate layer of MMIP. The characterization and adsorption research showed that the HMMIP had larger specific surface area, higher magnetic response strength and a more stable structure, and the selectivity and saturated adsorption capacity (2.815 mmol/g at 318 K) of gallic acid on HMMIP were better than those of MMIP. Thus, in addition to MMIP, the improved HMMIP had excellent separation and purification ability to selectively extract gallic acid from complex matrix with higher specificity and efficiency.

Simple and selective detection of quercetin in extracts of plants and food samples by dispersive-micro-solid phase extraction based on core–shell magnetic molecularly imprinted polymers

2018 ◽  
Vol 42 (19) ◽  
pp. 16144-16153 ◽  
Author(s):  
Arash Asfaram ◽  
Maryam Arabi ◽  
Abbas Ostovan ◽  
Hossein Sadeghi ◽  
Mehrorang Ghaedi
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Food Samples ◽  
Selective Detection ◽  
Phase Extraction ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Magnetic Molecularly Imprinted Polymers

In the present study, a D-μ-SPE clean-up method was established for the analysis of quercetin in extracts of plants and food samples using a magnetic molecularly imprinted polymer as the sorbent by HPLC-UV detection.

Synthesis, characterization and application of core–shell magnetic molecularly imprinted polymers for selective recognition of clozapine from human serum

RSC Advances ◽  
2015 ◽  
Vol 5 (89) ◽  
pp. 73268-73278 ◽  
Author(s):  
Jaber Javidi ◽  
Mohsen Esmaeilpour ◽  
Mehdi Rajabnia Khansari
Keyword(s):  
Human Serum ◽  
Molecularly Imprinted Polymer ◽  
Molecularly Imprinted Polymers ◽  
Selective Recognition ◽  
Core Shell ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Magnetic Molecularly Imprinted Polymers

In this article, a magnetic molecularly imprinted polymer (MMIPs) based on Fe3O4@SiO2 has been synthesized for simply extraction of clozapine (CLZ) from human serum.

Magnetic surface molecularly imprinted polymeric microspheres using gallic acid as a segment template for excellent recognition of ester catechins

2018 ◽  
Vol 10 (27) ◽  
pp. 3317-3324 ◽  
Author(s):  
Bin Wang ◽  
Huiyun Deng ◽  
Mao Wu ◽  
Shu Xiang ◽  
Qiang Ma ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Molecularly Imprinted Polymers ◽  
Magnetic Surface ◽  
Polymeric Microspheres ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Magnetic Molecularly Imprinted Polymers

The magnetic molecularly imprinted polymers (MMIPs) with gallic acid as a segment template can simultaneously recognize and separate ester catechins as a whole form tea samples.

Molecularly Imprinted Polymer Particles and Beads: A Survey of Modern Synthetic Techniques

2020 ◽  
Vol 16 ◽  
Author(s):  
Nasrullah Shah ◽  
Zubair Ullah Khan ◽  
Manzoor Hussain ◽  
Touseef Rehan ◽  
Abbas Khan ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Stationary Phases ◽  
Special Focus ◽  
Specific Function ◽  
Separation And Purification ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Molecular Imprinting Technology ◽  
Shape And Size

Abstract: Molecular imprinting technology is based on incorporating template molecules in the polymer matrix followed by their extraction to leave specific cavities similar in shape and size to the incorporated template molecules. The resultant molecularly imprinted polymers (MIPs) then show antibody-like and enzyme-like behavior. MIPs are used as selective adsorbents, stationary phases, sensors, drug delivery agents, ultrafiltration systems and as catalysts etc. To achieve a specific function, MIPs are synthesized in various forms like beads, particles, membranes, fibers and composites. MIP beads and particles have prime importance due to their use in multiple applications. In this article, we present a survey of various polymerization techniques used for the synthesis of MIP beads and particles along with special focus on the studies presenting their use in separation and purification

Application progress of magnetic molecularly imprinted polymer chemical sensors in the detection of biomarkers

The Analyst ◽  
2022 ◽  
Author(s):  
Ying Wang ◽  
Xiaomin Yang ◽  
Lin Pang ◽  
Pengfei Geng ◽  
Fang Mi ◽  
...  
Keyword(s):  
Chemical Sensors ◽  
Molecularly Imprinted Polymers ◽  
Essential Role ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Magnetic Molecularly Imprinted Polymer ◽  
Magnetic Molecularly Imprinted Polymers ◽  
Highly Sensitive ◽  
Detection Of Biomarkers ◽  
Highly Sensitive Detection

Specific recognition and highly sensitive detection of biomarkers play an essential role in identifying, early diagnosis and prevention of many diseases. Magnetic molecularly imprinted polymers (MMIP) have been widely used...

Molecularly Imprinted Polymers and Room Temperature Ionic Liquids: Impact of Template on Polymer Morphology

2007 ◽  
Vol 60 (1) ◽  
pp. 51 ◽  
Author(s):  
Katherine Booker ◽  
Michael C. Bowyer ◽  
Chris J. Lennard ◽  
Clovia I. Holdsworth ◽  
Adam McCluskey
Keyword(s):  
Low Temperature ◽  
Molecularly Imprinted Polymers ◽  
Reaction Times ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Volatile Organic Carbon ◽  
Aconitic Acid ◽  
Significant Acceleration ◽  
Microscopy Examination ◽  
Better Than

Molecularly imprinted polymers (MIPs) were generated for trans-aconitic acid 1 and cocaine 2 in a variety of porogens (CH3CN, CHCl3, [bmim][BF4], and [bmim][PF6]). MIP synthesis in either [bmim][BF4] or [bmim][PF6] resulted in significant acceleration of polymerization rates and, in the case of low temperature polymerizations, reactions were complete in less than 2 h, while no product was observed in the corresponding volatile organic carbon (VOC) porogen. In all instances, MIPs generated in [bmim][BF4] or [bmim][PF6] returned imprinting selectivities (I values) on par with or better than the corresponding MIP generated in VOCs. Imprinting values ranged between I = 1 and 2.9, with rebinding limited to 1 h. MIP synthesis conducted at low temperature (5°C) afforded the highest I values. Scanning electron microscopy examination of MIP morphology highlighted an unexpected template effect with MIP structure varying between discrete nanoparticles and robust monoliths. This template–monomer interaction was also observed in the rates of polymerizations with differences noted in reaction times for 1 and 2 MIPs, thus providing indirect conformation of our previously proposed use of molecular modelling–nuclear magnetic resonance titrations (the MM-NMR method) in the design phase of MIP generation. In addition, considerable batch-to-batch rebinding selectivities were observed.

Determination of active ingredients in Chinese medicine Danning Tablets using dispersion solid-phase extraction by molecular imprinting nanomaterials coupled with HPLC-DAD

2017 ◽  
Vol 9 (17) ◽  
pp. 2585-2589 ◽  
Author(s):  
Jieping Luo ◽  
Ning Chen ◽  
Zaiyue Yang ◽  
Jiyong Han ◽  
Wanying Zhu ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Molecularly Imprinted Polymers ◽  
Solid Phase ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Pretreatment Method ◽  
Magnetic Molecularly Imprinted Polymers

A reliable pretreatment method of magnetic molecularly imprinted polymers/dispersive solid-phase extraction was developed for selectivity and enrichment of targets.

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