Biomimetics: A Molecular Perspective by Raz Jelinek

By Raz Jelinek

Open booklet organic platforms have continuously encouraged mankind within the production of latest structures and applied sciences. lately the interfaces among the organic and non-biological worlds look more and more blurred as a result of major advances either in our figuring out of organic phenomena, in addition to the improvement of refined capability to govern organic structures for various functions. Biomimetics as a self-discipline exhibits how biology and organic procedures are manifested in various features of chemistry, physics and engineering. This ebook goals to methodically describe man made and artificial assemblies mimicking organic and dwelling structures - from drug discovery to microelectronics and laptop sciences.

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Specifically, periodic multilayer morphology of cellulose microfibrils (Fig. 11b) results in reflection of blue light; slight variations in microfibril orientations on the fruit surface produce the dramatic gloss and greenish-purple hues giving the fruit their unusual appearance. The Pollia condensata fruit exhibit other remarkable features. The thickness of the corrugated multilayer structure at the fruit surface was found to vary between adjacent fruit coating cells, subsequently producing slight spatial variations in the reflected light – responsible for the “pixel”-like surface color appearance.

Similar to the lotus effect discussed above, water de-wetting here is accomplished through surface display of abundant microscopic cavities. Different from the lotus plant (or other plants and organisms displaying water-repelling surfaces), however, the surface cavities on the pitcher’s surface do not entrap air, but rather a lubricating fluid responsible for the ejection of the non-polar liquids. Biomimetic synthetic omniphobic surfaces have been reported, primarily based upon nano- or microporous substrates comprising gel materials, cross-linked fibers, and similar designs.

A) Retaining of adhesive forces upon repeated applications of the adhesive, as compared to a complete loss of adhesive force for a conventional acrylic adhesive; (b) removal of acrylic patch results in skin damage and redness; (c) removal of the multi-pillar “dry” adhesive is smooth and less harmful to the skin. E. , Adv. Mater. 2011 23, 3949–3953. Copyright (2011) John Wiley and Sons. 42 3 Biomimetic surfaces Indeed, eliminating the need for chemical additives is among the most attractive practical aspects of synthetic surfaces whose morphological features are designed to imitate the strong physical adhesive forces recorded in various organisms.

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