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Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
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S.V.Tsygankova, A.A.Chinarev, A.B.Tuzikov, I.S.Zaitsev, N.Severin, A.A.Kalachev, J.P.Rabe, N.V.Bovin
Assembly of oligoglicine layers on mica surface.
Biomater. Nanobiotechnol., 2, pp. 90 - 96, (2011)

Assembly of [Gly7-NHCH2-]4C, [Gly7-NHCH2-]3C CH3 and [Gly4NH(CH2)5-]2 peptides on mica surface in aqueous solution was studied. The peptides are capable of forming atomically smooth (2.65-4.3 nm in height) layers assembled as polyglycine II. Monomers in the layers are situated normally to the surface. Formation of analogous flat 2D structures also takes place in solution but much more slowly than on mica surface, i.e. negatively charged surface plays an active role promoting the assembly.

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