27 Result(s)
within
Article
Zhao-Sheng Liu
Chemistry
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Article
Chiral Separation of Binaphthol Enantiomers on Molecularly Imprinted Polymer Monolith by Capillary Electrochromatography
A novel enantioseparational monolithic stationary phase for binaphthol based on a molecular imprinting method was introduced and evaluated in capillary electrochromatography (CEC). The monolithic stationary wa...
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Preparation and Characterization of a Low-Density Imprinted Monolithic Column
This work is a first effort to prepare a low-density imprinted monolithic column for LC. The new molecularly imprinted polymer monolith was prepared with 30% (w/w) monomers in the pre-polymerization mixture while...
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Characterization of Convection for Molecularly Imprinted Monolith
Convection of molecularly imprinted polymers monolith in LC mode was discussed in this paper. On the MIPs monolith reported here, a flat van Deemter plot of height equivalent to a theoretical plate (HETP) vers...
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Preparation of Molecularly Imprinted Coatings with Ternary Porogen for CEC
In this paper, a new ternary porogen was reported to prepare MIP coatings in a capillary for polar template, zopiclone. The porogen system was composed of a mixture of toluene, isooctane and dimethyl sulfoxide...
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Preparation and characterization of an imprinted monolith by atom transfer radical polymerization assisted by crowding agents
A method based on reverse atom transfer radical polymerization (R-ATRP) and molecular crowding has been used for design and synthesis of monolithic molecularly imprinted polymers (MIPs) capable of recognizing ...
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Synthesis and theoretical study of molecularly imprinted monoliths for HPLC
Molecularly imprinted monoliths integrate the high permeability of monolithic materials and the high selectivity and affinity of molecularly imprinted polymers (MIP). Thus, in recent years, development of this...
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Rapid preparation of molecularly imprinted polymer by frontal polymerization
Frontal polymerization was successfully applied, for the first time, to obtain molecularly imprinted polymers (MIPs). The method provides a solvent-free polymerization mode, and the reaction can be completed i...
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Novel Cell Membrane Capillary Chromatography for Screening Active Compounds from Natural Products
Cell membrane chromatography (CMC) is a useful method for the simultaneous isolation and identification of active compounds from natural products. However, it suffers from high cell membrane consumption and is...
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Carprofen-imprinted monolith prepared by reversible addition–fragmentation chain transfer polymerization in room temperature ionic liquids
To obtain fast separation, ionic liquids were used as porogens first in combination with reversible addition–fragmentation chain transfer (RAFT) polymerization to prepare a new type of molecularly imprinted po...
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Article
Chiral separation of racemic mandelic acids by use of an ionic liquid-mediated imprinted monolith with a metal ion as self-assembly pivot
A new chiral stationary phase based on molecularly imprinted polymers (MIP) was prepared in ionic liquid by use of the metal pivot concept. Imprinted monoliths were synthesized by use of a mixture of R-mandelic a...
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Article
Thermoresponsive ketoprofen-imprinted monolith prepared in ionic liquid
A thermoresponsive imprinted monolith with the ability of molecular recognition for ketoprofen was prepared for the first time. The smart monolith was synthesized in a stainless steel column using acrylamide (...
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Article
Macromolecular crowding-assisted fabrication of liquid-crystalline imprinted polymers
A macromolecular crowding-assisted liquid-crystalline molecularly imprinted monolith (LC-MIM) was prepared successfully for the first time. The imprinted stationary phase was synthesized with polymethyl methac...
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Article
Separation of Epigallocatechin Gallate from Natural Plant Extracts Using Crowding Agents—Assisted Imprinted Polymers
A methodology-based molecularly imprinted polymer (MIP) was proposed to separate epigallocatechin gallate (EGCG) from natural plant extracts. A molecular crowding agent was introduced to improve the affinity a...
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Article
Comparison of multi-recognition molecularly imprinted polymers for recognition of melamine, cyromazine, triamterene, and trimethoprim
Three fragmental templates, including 2,4-diamino-6-methyl-1,3,5-triazine (DMT), cyromazine (CYR), and trimethoprim (TME), were used to prepare the fragment molecularly imprinted polymers (FMIPs), respectively...
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Article
Effect of minimizing amount of template by addition of macromolecular crowding agent on preparation of molecularly imprinted monolith
One of the main challenges in the preparation of molecularly imprinted polymers (MIPs) is the substantial initial amount of template needed because of the requirement of high load capacities for most applicati...
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Article
Enhancement of selective separation on molecularly imprinted monolith by molecular crowding agent
In this study, a new molecularly imprinted polymer chiral stationary phase (MIP-CSP) was prepared utilizing molecular crowding agent for improvement the selective separation ability. S-amlodipine (S-AML), methacr...
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Molecularly imprinted polymer prepared with polyhedral oligomeric silsesquioxane through reversible addition–fragmentation chain transfer polymerization
Polyhedral oligomeric silsesquioxane (POSS) was utilized to prepare imprinted polymer through reversible addition–fragmentation chain transfer polymerization (RAFT) successfully. The imprinted polymer was made...
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Article
Improvement of imprinting effect of ionic liquid molecularly imprinted polymers by use of a molecular crowding agent
We aimed to improve the imprinting effect of ionic liquid molecularly imprinted polymers (MIPs) by use of a molecular crowding agent. The ionic liquid 1-vinyl-3-ethylimidazolium tetrafluoroborate ([VEIm][BF4]) wa...
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Article
A strategy of utilizing Zn(II) as metallic pivot in room temperature ionic liquid to prepare molecularly imprinted polymers for compound with intramolecular hydrogen bonds
A method of preparing molecularly imprinted polymers (MIPs) with Zn(II) as a metallic pivot was adopted to solve the problem of imprinting compound with intramolecular hydrogen bonds by forming stronger coordi...
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Enhanced molecular recognition for imprinted monolithic column containing polyhedral oligomeric silsesquioxanes by dendritic effect of mesoporous molecular sieve scaffolds
The dendritic effect of nano mesoporous molecular sieve was first used to enhance molecular recognition of molecularly imprinted polymers (MIPs)-based polyhedral oligomeric silsesquioxanes (POSS). In this stud...
