title: [Methods of nanoparticles control in food and biological objects. Report 1. Use of microscopic and chromatography investigation methods].
abstract: One of the promising applications of modern nanotechnology are food productions, which includes the improvement of food packaging, creation of new forms of nutrients that are characterized by improved assimilation and technological characteristics, quality control through the creation of compact and cheap test kits. All these applications of nanomaterials related to the risks of the possibility of receipt of potentially toxic nanoparticles in the diet. The task of regulation and hygienic standardization requires developing of the methods, their qualitative and quantitative analysis for such complex, multicomponent systems, which are the agricultural commodities and food products. The best hope in this plan are assigned to a group of approaches related to the microscopic visualization of artificial nanoparticles in the biological objects. While the typical size of nanoparticles (<100 nm) are below the theoretical maximum-resolution light optical methods, transmission electron microscopy often allows not only to identify nanoparticles on their size and shape, but also a qualitative and quantitative analysis their chemical composition with the use of additional analytical options. Another group of elaborate methods used in solving the problems of qualitative and quantitative analysis of nanoparticles are chromatographic methods, in particular, the exclusion, hydrodynamic, high-performance liquid chromatography, and the flow-field fractionation. Limitation of chromatographic approaches related with the need of complex sample preparation, as well as specific difficulties in nanoparticles detecting in chromatographic fractions. Transmission electron microscopy and high-performance liquid chromatography methods are officially recommended in Russia for the analysis of artificial nanoparticles in natural biological systems, including food products.
authors: R V
authors: RV
authors: Raspopov
authors: I V
authors: IV
authors: Gmoshinskiĭ
authors: K I
authors: KI
authors: Popov
authors: O V
authors: OV
authors: Krasnoiarova
authors: S A
authors: SA
authors: Khotimchenko
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005504:Food Analysis / Q000379:methods*; D005506:Food Contamination / Q000032:analysis* / Q000517:prevention & control; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000032:analysis*; D010316:Particle Size; D011108:Polymers / Q000032:analysis
chemical_list: D011108:Polymers