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Reference type: Journal
Authors: Jia Q, Ma Y, Peng YX, Liu YH, Zhang WL
Article Title: Selective recognition and separation of luteolin based on the molecular imprinted hollow SnO2 and boronate affinity.
Publication date: 2018
Journal: Chemical Engineering Journal
Volume: 342
Page numbers: 293-303.
DOI: 10.1016/j.cej.2018.02.103
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1385894718303164

Abstract: Molecular imprinted hollow SnO2 microspheres (Ho-SnO2@MIPs) integrated with boronate affinity ability were fabricated via atom transfer radical polymerization, and then they were adopted as ideal adsorbents for cis-diol containing luteolin (LTL) recognition and separation. Ho-SnO2@MIPs possessed uniform size (200 nm), porous and hollow structure, appropriate BET surface area (118.6 m2 g-1), and high-density boronate affinity sites (0.22 mg m-2), endowing them highly specific uptake and fast separation properties. Due to the merit of pH responsive boronate affinity, the reversible interaction of boronic acid groups and LTL was regulated by the pH value facilely, which was benefit for the controlled recognition and release. In the batch mode experiments, the quick binding equilibrium (within 60 min) and a rather high specific binding capacity (46.81 mg g-1) at 298 K were observed, and Ho-SnO2@MIPs also displayed high rebinding selectivity to LTL. By a purification process, a commercially available LTL with 85% purity could be easily extracted and concentrated to 95.28% purity by Ho-SnO2@MIPs, and the purified products possessed the similar antibacterial performance with standard substance
Template and target information: luteolin, LTL
Author keywords: molecular imprinting, hollow structure, selective separation, boronate affinity, Luteolin


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