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.

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.

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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