Monodisperse hollow-shell structured molecularly imprinted polymers for photocontrolled extraction α-cyclodextrin from complex samples. (30th May 2019)

• Record Type: Journal Article
• Authors: Fan, Haoran; Wang, Jinpeng; Meng, Qingran; Jin, Zhengyu
• Is Part Of: Food chemistry. Volume 281(2019)
• Page Start: 1
• Page End: 7
• Publication Date: 2019-05-30
• Subjects: Hollow-shell structure -- Surface imprinting technique -- α-Cyclodextrin -- Photocontrolled extraction; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2018.12.084
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: Photoresponsive hollow-shell structured material (PHSMIPs) were prepared. PHSMIPs had faster mass transfer rate for α-cyclodextrin (α-CD). PHSMIPs had higher binding capacity and better recognition ability for α-CD. PHSMIPs were successfully utilized for extraction of α-CD in practical production. Abstract: In present study, monodisperse photoresponsive hollow-shell structured molecularly imprinted polymers (PHSMIPs) were fabricated based on surface imprinting technique and first proposed for selective recognition and adsorption of α-cyclodextrin (α-CD) from complex samples. The structure and the binding properties of PHSMIPs and photoresponsive surface molecularly imprinted polymers (PSMIPs) were compared. Results showed the average diameter of PHSMIPs were about 480 nm with an approximately 40 nm shell. PHSMIPs possessed BET surface areas of 273.4 m 2 /g, the pore volume of 0.333 cm 3 /g, and average pore diameters of 4.3 nm. PHSMIPs displayed higher binding capacity, better recognition ability, and faster mass transfer rate toward α-CD than PSMIPs. Furthermore, PHSMIPs was successfully used in the separation of α-CD in real reaction solution, indicating potential application for purification and selective extraction of α-CD from complex environment.