期刊
TRENDS IN FOOD SCIENCE & TECHNOLOGY
卷 111, 期 -, 页码 642-669出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tifs.2021.03.003
关键词
Active food packaging; Controlled release; Dummy template molecules; Molecular sieves; Nanostructures; Sensors; Solid phase extraction
资金
- Federal University of Santa Catarina (UFSC)
- National Council for Scientific and Technological Development (CNPq) [405432/2018-6]
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)
- Universidad Nacional de Mar del Plata (UNMdP)
- Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT) [PICT-2017-1362]
MIPs are synthetic materials capable of selectively binding to target molecules, widely used in food chemistry for sample preparation and other food applications. The final properties of MIPs are influenced by the polymerization method, reagent ratio, and design structure.
Background: Molecularly imprinted polymers (MIPs) are bio-inspired synthetic materials capable of being selectively attached to a target molecule. These materials are synthesized by using a template molecule (the same target molecule or a dummy template molecule (similar structure to the target molecule)), a crosslinker, a functional monomer and an initiator via different polymerization mechanisms (mainly free radical polymerization (FRP) and reversible deactivation radical polymerization (RDRP, such as atom transfer radical polymerization (ATRP), iniferter polymerization, nitroxide-mediated radical polymerization (NMP) and reversible addition-fragmentation chain transfer (RAFT) polymerization)) and methods (e.g. bulk polymerization, emulsion polymerization, Pickering emulsion polymerization, precipitation, surface imprinting, suspension polymerization). Scope and approach: Different MIP structures (hydrogels, membranes (electrospun nanofibers and films) and particles (core-shell and hollow-shell nanoparticles, microbeads, nanopillars and nanotubes)) for food applications (sensors for the detection of food contaminants and the quantification of food nutrients and nutraceuticals, active food packaging applications and sample preparation: removal, preconcentration and detection of target analytes) were comprehensively reviewed and analyzed based on the literature published during the last six years (2016-2021), and highlighting other pioneering or interesting works from other dates. Key findings and conclusions: MIPs have been used primarily in food chemistry as a valuable tool for sample preparation, and other food applications are booming. Finally, the final properties of the resulting MIPs are determined by the selected polymerization method, the ratio of the reagents used and the designed structure.
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