ISBN: 9400733178

Biological substances appeared in marine environments at the dawn of evolution. At that moment, the ?rst organisms acquired the ability to synthesize polymer chains which were the basis, … Meer...

Biological substances appeared in marine environments at the dawn of evolution. At that moment, the ?rst organisms acquired the ability to synthesize polymer chains which were the basis, in their turn, for the formation of the building blocks that fueled the so-called self-assembling process. They, in their turn, produced more complicated structures. The phenomenon of three main organic structural and sc- folding polymers (chitin, cellulose, and collagen) probably determined the further development and evolution of bioorganic structures and, of course, the organisms themselves. Allthethreebiopolymers, notwithstandingtheirdifferencesinchemical composition, have the common principles in their organization: nano'brils with the diameter 1. 5 2 nm, the ability to self-assemble, production of ?brillar and ?ber-like structures with hierarchical organization from nano up to macrolevels, the ability to perform both the role of scaffolds and the templates for biomineralization and formation of the rigid skeletal structures. Chitin and collagen in particular played the determining role in the formation of skeletal structure in marine invertebrate organisms. These two biopolymers possess all the qualities needed to refer to them simul- neously as biological materials and biomaterials, the latter thanks to their successful application in biomedicine. The fact that modern science ?nds chitin and collagen both in unicellular and in multicellular invertebrates in fossil and modern species co science,science and math,science and scientists,science and technology Science & Math, Springer<

2012, ISBN: 9789400733176

Stuttgart:: Wissenschaftliche Verlagsgesellschaft, 1947-1957., 1947. Series: Grosse Naturforscher. 22 volumes [other volumes in the series continued after no. 22]. Sm. 8vo. Approx. 200 p… Meer...

Stuttgart:: Wissenschaftliche Verlagsgesellschaft, 1947-1957., 1947. Series: Grosse Naturforscher. 22 volumes [other volumes in the series continued after no. 22]. Sm. 8vo. Approx. 200 pp. each. Figs., some indexing. Printed boards, dust-jackets; jacket extremities a bit worn. Very good. Scarce set. Albertus Magnus / Heinrich Balss; Ernst Abbe / Norbert Gunther; Humphry Davy & J. Jakob Berzelius / Wilhelm Prandtl; Max von Pettenkofer / Karl Kisskalt; Hermann von Helmholtz / Hermann Ebert; Robert Wilhelm Bunsen / Georg Lockemann; Friedrich Wohler / Johannes Valentin; Paul Ehrlich / Hans Loewe; James Cook / Edwin Hennig; Adolf von Baeyer / Karl Schmorl; Hans Spemann / Otto Mangold; Oskar von Miller / Ludwig Nockher; Georg Agricola / Hans Hartmann; Alexander von Humboldt / Ewald Banse; Naturschutz Heimatschutz / Richard Bochalli, Robert Koch / Walther Schoenichen; Georg Schweinfurth / Konrad Gunther; Wladimir Koppen / Else Wegener-Koppen; Fridtjof Nansen / Ludwig Nockher ; Galileo Galilei / Hans-Christian Freisleben; Julius von Payer / Martin Muller; Gregor Mendel / Ingo Krumbiegel., Wissenschaftliche Verlagsgesellschaft, 1947-1957., 1947, Springer, 2012-11-06. 2010. Paperback. Good., Springer, 2012-11-06<