Michael Ioelovich

Weizmann Institute of Science, Biological Chemistry, chief chemist

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Michael Ioelovich was graduated Ph.D. in 1974, Latvian Institute of Wood Chemistry; D.Sc. in 1991, Habil. D.Sc. in 1992, Latvian Academy of Sciences, and was elected as Leading Scientist and Professor. His scientific activation and interests are connected with chemistry and technology of plant biomasses, cellulose, pulp and paper, cellulose derivatives, natural and synthetic polymer composites. Prof. M. Ioelovich worked at Institute of Fibers, Weizmann Institute of Science, as well as at various Nano-Tech, Bio-Tech and Chemical companies of Israel. From 2005 to 2013 Prof. M. Ioelovich worked as chief chemist in Chem. Dep. of Designer Energy Co. From 2014 he worked as consult and manager of projects in field of nanotechnology, biomass structure, modification and use, and technologies of biofuels.
Prof. M. Ioelovich published 13 monographs and book chapters, and more than 400 scientific publications in field of structure, chemistry, physics, technology and nanotechnology of biomass, cellulose and synthetic polymers, as well as biochemicals and bioenergy. He is also authors of 14 patents. Prof. M. Ioelovich is member of editorial board of Energy and Ecology, Int. Res, J., Research in Industrial and Engineering Chemistry, South Asian Res. J. of Natural Products, J. of Polymer Chemistry, Academy Journal of Polymer Science, J. SITA, as well as reviewer of various scientific journals such as Bioresources, Bioscience, Energy and Ecology, Green Energy, Material Letter, Carbohydrate Polymers, Cellulose, etc.
Supervisors: Advisor of projects in field of nanotechnology, biomass structure, modification and use, and technologies of biofuels.

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M. Ioelovich. Chitin and Chitosan. Chapter 2. Summari.pdf

In this chapter, preparation, characterization and applications of chitin and chitosan have been ... more In this chapter, preparation, characterization and applications of chitin and chitosan have been described and discussed. These nitrogenated polysaccharides occupy second place prevalence in the nature after cellulose. Diverse physical, physicochemical and chemical methods are applied to characterize structure and properties of these biopolymers. Being nanostructured, chitin and chitosan can be isolated from natural sources in a form of nanoscale particles, fibrils and filaments having unique features such as small dimensions, variety shapes, enhanced specific surface, high sorption and absorption ability, and other specific characteristic in combination with biocompatibility, biodegradability and complex of unique therapeutic properties. In addition, these biopolymers serve as a basis for the production of some therapeutically active substances. Therefore, chitin and chitosan find a great commercial interest in biomedicine, pharmaceutics, cosmetics, personal care and some other areas. Small particles and fibrils made of the biopolymers can be used as fillers for biocomposites and thickeners imparting to liquid systems an increased viscosity and gel consistence. The nanocarriers of nitrogenated polysaccharides can bind various therapeutic active substances, which expand application areas of these biopolymers. Antibacterial non-woven materials made of nanofilaments have an increased absorption ability and accelerate healing process. Some other application areas of the nitrogenated polysaccharides are also described

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Handbook of Nanocellulose and Cellulose Nanocomposites. Editors

Cellulose is a widespread renewable natural polymer, which is the most appropriate for preparatio... more Cellulose is a widespread renewable natural polymer, which is the most appropriate for preparation of various types of nanomaterials. Being typical nanostructured polymer, cellulose contains nanofibrils, nanocrystallites, paracrystalline nanolayers and amorphous nanodomains, which allow produce various kinds of the nanomaterials: cellulose nanofibrils, cellulose nanocrystals, particles o f amorphous nanocellulose and cellulose nanoyarn. Besides bacterial nanocellulose is a natural source of biosynthesized cellulose nanofibrils. In this chapter, the modern methods of structural investigations of various nanocellulose kinds are described. To characterize the structure of nanocellulose (NC), the main structural characteristics should be determined such as dimensions, shape, aspect ratio, specific surface area, charge, parameters of crystalline structure, purity, DP, etc. Effect of structural characteristics of NC of various kinds on their chemical, physico-chemical and physico-mechanical properties is discussed. Furthermore, specific structural features and properties of the nanocellulose kinds are shown.

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Michael Ioelovich

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