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BZB Group
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NutraLease Ltd.
Executive Summary
Prof. Nissim Garti and Dr. Yana Berkovich of the Casali Institute of Applied Chemistry, Hebrew University of Jerusalem
Copolymer Self-Assemblies for Synthesis of Inorganic-Organic Nano-particulated Compositions
Application Organic-inorganic compositions - hybrids of organic polymers and silica glasses - are used as optical transparent coatings. Optical transparent coatings have wide range of applications in glass and plastic surfaces: e.g. lenses, screens, etc.
Innovation & Advantages · Abrasion resistance is a critical factor in optical coatings. Coatings made of oxide nanoparticles augment the abrasion resistance. · Optical transparency dictates particle sizes below 20 nm. The present technology enables synthesis of nano particles in the range of 5 to 20 nm. · Compared with the Sol Gel coating technology, it enables better regulation of the particle size and higher concentration of the reinforcing elements (up to 50% of the coating).
The Technology The synthesis of low nano-range particles starting from molecular precursors can be done via selective nucleation over growth. Organized solutions of short chain amphipiles (surfactants) provide a microheterogeneous reaction field, which directs colloidal synthesis of inorganic phases. The complementary important factors regulating the structure formation of the growing inorganic phases in the polymer amphiphiles (copolymers) are dictated by the nature of the interfaces. Processes recognition provides a controlled synthesis of inorganic materials that exhibit uniform nanoscale particle size, organized assembly, and composite structures.
The key factor in the synthesis of inorganic phases, with the desired morphology, is determined by strong interactions of the inorganic precursors, or formed nuclei, with the organic surface. It dictates that processes on the interfaces should be competitive over analogous processes in bulk solutions.
The Market Optical Transparency Coating for the glass and plastic industries markets.
Project Status Based on the research, a range of formulations in water and water-organic solutions useful for transparent water nonpermeable coatings on glass and plastic surfaces has been successfully prepared. They include organic copolymer with, TEOS (teraethylorthosilicate), aluminum isopropoxide or colloidal silica, and organically functionalized oxysilane in different ratios.
Future studies may allow us to evaluate “composition - properties” functions of the coatings and develop the optimal technological parameters. The formulation compositions may be wildly varied and correspondingly physical properties can be modified. Tailor made preparations, as per application can be provided.
Intellectual Property International patents have been filed.
About the Researcher Prof. Garti is a researcher and lecturer at the Casali Institute of Applied Chemistry at the Hebrew University of Jerusalem. He is an expert in the area of colloid chemistry, food colloids, surface science, emulsion technology, self assemblies of amphihiles, crystallization phenomena and organic and enzymatic processes in dispersed systems. Prof. Garti is an international consultant and is involved on a regular basis with research projects carried by leading food and biotechnology companies. Prof. Garti has published over 230 original scientific papers, has written over 30 review chapters in books, edited three books and has been granted 65 Israeli and international patents.
The Business Opportunity Licensing of the technology in the framework of a royalty bearing agreement and research funding for completion of the research and full adaptation of the technology to standardized industrial processes.
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