title: Dummy-surface molecularly imprinted polymers on magnetic graphene oxide for rapid and selective quantification of acrylamide in heat-processed (including fried) foods.
abstract: Novel nano-sized dummy-surface molecularly imprinted polymers (DSMIPs) on a magnetic graphene oxide (GO-Fe3O4) surface were developed as substrates, using propionamide as a dummy template molecule for the selective recognition and rapid pre-concentration and removal of acrylamide (AM) from food samples. These products showed rapid kinetics, high binding capacity (adsorption at 3.68mg·g-1), and selectivity (imprinting factor α 2.83); the adsorption processes followed the Langmuir-Freundlich isotherm and pseudo-second-order kinetic models. Excellent recognition selectivity toward acrylamide was achieved compared to structural analogs, such as propionic and acrylic acids (selectivity factor β 2.33, and 2.20, respectively). Moreover, DSMIPs-GO-Fe3O4was used to quantify acrylamide in food samples, yielding satisfactory recovery (86.7-94.3%) and low relative standard deviation (<4.85%). Thus, our DSMIPs-GO-Fe3O4-based procedure was demonstrated to be a convenient and practical method for the separation, enrichment, and removal of acrylamide from food samples.
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
authors.forename: Fangjian
authors.initials: F
authors.lastname: Ning
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Qiu
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Department of Biological & Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA. Electronic address: peng_hailong@aliyun.com.
authors.forename: Hailong
authors.initials: H
authors.lastname: Peng
authors.affiliation: College of Biosystem Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Department of Biological & Agricultural Engineering, University of Arkansas, Fayetteville, AR 72701, USA.
authors.forename: Yanbin
authors.initials: Y
authors.lastname: Li
authors.affiliation: Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
authors.forename: Xiaqing
authors.initials: X
authors.lastname: Wu
authors.affiliation: Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
authors.forename: Zhong
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
authors.forename: Linxin
authors.initials: L
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China. Electronic address: huaxiong100@126.com.
authors.forename: Hua
authors.initials: H
authors.lastname: Xiong
mesh_terms: D020106:Acrylamide / Q000032:analysis*; D000327:Adsorption; D005511:Food Handling; D006108:Graphite / Q000737:chemistry*; D006358:Hot Temperature; D054802:Molecular Imprinting / Q000379:methods*; D011108:Polymers / Q000737:chemistry*
chemical_list: D011108:Polymers; D020106:Acrylamide; D006108:Graphite
keywords: Acrylamide; Dummy surface molecular imprinting; Graphene oxide; Magnetic nanoparticles