Thin Films Of Synthetic Melanin

dc.creatorDeziderio S.N.
dc.creatorBrunello C.A.
dc.creatorDa Silva M.I.N.
dc.creatorCotta M.A.
dc.creatorGraeff C.F.O.
dc.date2004
dc.date2015-06-26T14:25:38Z
dc.date2015-11-26T14:15:09Z
dc.date2015-06-26T14:25:38Z
dc.date2015-11-26T14:15:09Z
dc.date.accessioned2018-03-28T21:16:02Z
dc.date.available2018-03-28T21:16:02Z
dc.identifier
dc.identifierJournal Of Non-crystalline Solids. , v. 338-340, n. 1 SPEC. ISS., p. 634 - 638, 2004.
dc.identifier223093
dc.identifier10.1016/j.jnoncrysol.2004.03.058
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-2942538107&partnerID=40&md5=42e3208cf2afb4189a2a741fc657d4b8
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/94808
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/94808
dc.identifier2-s2.0-2942538107
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1242721
dc.descriptionWe have developed a new synthetic route to melanin, using different organic solvents, namely dimethyl sulfoxide and N,N-dimethyl formamide. Contrary to conventional water based melanin thin films can be made with organic solvents. Thin films were made either by room temperature solvent evaporation (casting) or using spin coating. X-ray diffraction, thermogravimetry, infrared transmission spectroscopy, UV-VIS transmission spectroscopy, electron spin resonance, atomic force microscopy (AFM) and temperature dependent conductivity have been used to characterize the material obtained. The new synthetic material is found to be similar to melanin made in water, however with an increase in thermal stability. AFM results shows that the thin films are made of graphitic-like planar structures, with root mean square roughness of ~0.3 nm, separated by steps ranging from 1 to 3 nm in height. These sheets have lateral extensions of several microns, which make this new material potentially interesting as a 2D organic polymer. © 2004 Elsevier B.V. All rights reserved.
dc.description338-340
dc.description1 SPEC. ISS.
dc.description634
dc.description638
dc.descriptionProta, G., (1992) Melanins and Melagenesis, , San Diego: Academic
dc.descriptionZajac, G.W., Gallas, J.M., Cheng, J., Eisner, M., Moss, S.C., Alvarado-Swaisgood, A.E., (1994) Biochim. Biophys. Acta, 1199, p. 271
dc.descriptionNofsinger, J.B., Forest, S.E., Eibest, L.M., Gold, K.A., Simon, J.D., (2000) Pig. Cell Res., 13, p. 179
dc.descriptionClancy, C.M.R., Simon, J.D., (2001) Biochemistry, 40, p. 13353
dc.descriptionGonçalves, P.J., Brunello, C.A., Graeff, C.F.O., (2002) Molec. Cryst. Liq. Cryst., 374, p. 39
dc.descriptionOliveira, H.P., Graeff, C.F.O., Zanta, C.L.P.S., Galina, A.C., Gonçalves, P.J., (2000) J. Mater. Chem., 10, p. 371
dc.descriptionBernier, P., Lefrante, S., Bidan, G., (1999) Advances in Synthetic Metals: Twenty Years of Progress in Science and Technology, , Lausanne: Elsevier
dc.descriptionJastrzebska, M., Kocot, A., Tayber, L., (2002) J. Photochem. Photobiol. B, 66, p. 201
dc.languageen
dc.publisher
dc.relationJournal of Non-Crystalline Solids
dc.rightsfechado
dc.sourceScopus
dc.titleThin Films Of Synthetic Melanin
dc.typeActas de congresos


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