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Biocompatible Materials Based on Self-Assembling Peptides on Ti25Nb10Zr Alloy: Molecular Structure and Organization Investigated by Synchrotron Radiation Induced Techniques.
Secchi, Valeria; Franchi, Stefano; Santi, Marta; Vladescu, Alina; Braic, Mariana; Skála, Tomás; Nováková, Jaroslava; Dettin, Monica; Zamuner, Annj; Iucci, Giovanna; Battocchio, Chiara.
Afiliación
  • Secchi V; Department of Science, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy. valeria.secchi@uniroma3.it.
  • Franchi S; Department of Science, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy. stefano.franchi@elettra.eu.
  • Santi M; Department of Science, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy. santimarta3@gmail.com.
  • Vladescu A; National Institute for Optoelectronics, 409 Atomistilor St., 077125 Magurele, Romania. alinava@inoe.ro.
  • Braic M; National Institute for Optoelectronics, 409 Atomistilor St., 077125 Magurele, Romania. mariana.braic@inoe.ro.
  • Skála T; Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holesovickách 2, 18000 Prague, Czech Republic. tomas.skala@elettra.eu.
  • Nováková J; Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holesovickách 2, 18000 Prague, Czech Republic. jaroslava.lavkova@gmail.com.
  • Dettin M; Department of Industrial Engineering, University of Padua, Via Marzolo, 9, Padua 35131, Italy. monica.dettin@unipd.it.
  • Zamuner A; Department of Industrial Engineering, University of Padua, Via Marzolo, 9, Padua 35131, Italy. annj.zamuner@studenti.unipd.it.
  • Iucci G; Department of Science, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy. giovanna.iucci@uniroma3.it.
  • Battocchio C; Department of Science, Roma Tre University of Rome, Via della Vasca Navale 79, 00146 Rome, Italy. chiara.battocchio@uniroma3.it.
Nanomaterials (Basel) ; 8(3)2018 Mar 07.
Article en En | MEDLINE | ID: mdl-29518968
In this work, we applied advanced Synchrotron Radiation (SR) induced techniques to the study of the chemisorption of the Self Assembling Peptide EAbuK16, i.e., H-Abu-Glu-Abu-Glu-Abu-Lys-Abu-Lys-Abu-Glu-Abu-Glu-Abu-Lys-Abu-Lys-NH2 that is able to spontaneously aggregate in anti-parallel ß-sheet conformation, onto annealed Ti25Nb10Zr alloy surfaces. This synthetic amphiphilic oligopeptide is a good candidate to mimic extracellular matrix for bone prosthesis, since its ß-sheets stack onto each other in a multilayer oriented nanostructure with internal pores of 5-200 nm size. To prepare the biomimetic material, Ti25Nb10Zr discs were treated with aqueous solutions of EAbuK16 at different pH values. Here we present the results achieved by performing SR-induced X-ray Photoelectron Spectroscopy (SR-XPS), angle-dependent Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy, FESEM and AFM imaging on Ti25Nb10Zr discs after incubation with self-assembling peptide solution at five different pH values, selected deliberately to investigate the best conditions for peptide immobilization.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Año: 2018 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Suiza
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Año: 2018 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Suiza