By Charles E. Carraher Jr., Cynthia Butler, Yoshinobu Naoshima, Dorothy Sterling (auth.), Charles G. Gebelein, Charles E. Carraher Jr. (eds.)
Some have expected that the arriving a number of many years could be the many years of "biotechnology," in which melanoma, start defects, existence span raises, cosmetics, biodegradation, oil spills and exploration, stable waste disposal, and nearly each point of our fabric existence can be tormented by this new sector of technological know-how. there'll even be an extension of emphasis on vast molecules: DNA, enzymes, polysaccharides, lignins, proteins, hemoglobin, etc. Biotechnology has been outlined in a variety of methods. in a single feel, this box is older than human historical past and references to the human use of biotechnology-derived fabrics are available within the oldest human writings, equivalent to the Bible. during this booklet, biotechnology refers back to the direct utilization of evidently happening fabrics or their makes use of as a feedstock, together with the linked organic actions and purposes of those fabrics. Bioactive polymers, nonetheless, are polymers which exert a few form of task on dwelling organisms. those polymers are utilized in agriculture, managed unencumber platforms, medication and plenty of different components. The papers during this e-book describe polymers which primarily mix beneficial properties of biotechnology and bioactivity.
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Additional resources for Biotechnology and Bioactive Polymers
Hylan gel slurry was injected intradermally and subdermally in mice and was found to produce a minimal reaction at 24 hours, thereafter (up to 7 weeks) there was no significant tissue reaction. Intradermal injection of [ 3 H]hylan gel slurry in guinea pigs revealed a minimal tissue reaction after 1 week, and measurement of radioactivity in the tissue at 1, 2 and 4 weeks revealed only a slight decrease in the total amount of injected radioactivity. Immunogenic activity of hylan gel slurry was evaluated in rabbits adjuvant; unmodified hylan gel slurry, degraded hylan gel slurry and hylan gel slurry-ovalbumin conjugate were used to immunize rabbits.
Band, N. Larsen, A. Leshchiner and B. Morales, in: "Proc. Fifth Ind. Conf. " (1988). 26. N. E. Larsen, M. B. Kling, E. A. Balazs, E. L. Leshchiner, Transactions: Sixteenth Annual Meeting of The Society for Biomaterials, Charleston, South Carolina, 302, May 20-23, 1990. 33 ADSORPTION OF METAL IONS ON CHITOSAN AND CHEMICALLY MODIFIED CHITOSAN AND THEIR APPLICATION TO HYDROMETALLURGY Katsutoshi Inoue, Kazuharu Yoshizuka and Yoshinari Baba Department of Applied Chemistry Saga University Honjo-machi, Saga 840, Japan Crosslinked copper(II)-complexed chitosan was prepared to avoid the dissolution in various aqueous acidic media since chitosan, as it is, dissolves in aqueous solutions of organic acids and inorganic acids in some concentration regions except for sulfuric acid solutions.
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