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Edyta Proniewicz, Prompong Pienpinijtham, Yukihiro Ozaki, Younkyoo Kim and Leonard M. Proniewicz Influence of backbone length and synthetic mutations on orientation of neurotensin fragments adsorbed onto a colloidal silver surface: SERS studies Journal of Raman Spectroscopy 44

Version of Record online: 25 SEP 2012 | DOI: 10.1002/jrs.4157

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The SERS spectra of N-terminal fragments of human NT (NT1-6, NT1-8, and NT1-11) and also its six specifically mutated C-terminal fragments: NT8-13, [Dab9]NT8-13, [Lys8,Lys9]NT8-13, [Lys8-(®)-Lys9]NT8-13, [Lys9,Trp11,Glu12]NT8-13, and NT9-13 adsorbed onto nanometer-sized colloidal silver particles in an aqueous solution at pH level of the solution 2 are presented. A comparison was made between the structures of the native and mutated fragments to determine how changes in peptide length and mutations of the structure influenced the NT adsorption properties.

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