Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Electrodeposition and biomineralization of nano-beta-tricalcium phosphate on graphenated carbon nanotubes

Full text
Author(s):
Metoki, N. [1] ; Rosa, C. M. R. [2] ; Zanin, H. [3] ; Marciano, F. R. [2] ; Eliaz, N. [1] ; Lobo, A. O. [2]
Total Authors: 6
Affiliation:
[1] Tel Aviv Univ, Dept Mat Sci & Engn, IL-6997801 Tel Aviv - Israel
[2] Univ Vale Paraiba, Inst Res & Dev, Lab Biomed Nanotechnol Nanobio, Av Shishima Hifumi 2911, BR-12244000 Sao Jose Dos Campos, SP - Brazil
[3] Univ Vale Paraiba, Inst Res & Dev, Lab Energy Storage & Supply ES&S, Av Shishima Hifumi 2911, BR-12244000 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: SURFACE & COATINGS TECHNOLOGY; v. 297, p. 51-57, JUL 15 2016.
Web of Science Citations: 7
Abstract

Nano-calcium-phosphate (n-CaP) is an attractive, biocompatible material for increasing osteointegration. Among nanomaterials, functionalized carbon-based materials are emerging materials, which have excellent mechanical properties, biocompatibility and chemical stability. These properties may further enhance the n-CaP performance. It has been shown that stoichiometric n-CaP can be electrodeposited on graphene and carbon nanotubes (CNTs) by employing fast and low-cost electrodeposition techniques. Here, we present, for the first time, a crystalline, needle-like nano-beta-tricalcium phosphate (n-beta-TCP) electrodeposited on reduced graphene oxide (rGO) nanosheets. The rGO was grown on CNT, as a composite biomaterial, in a one-step process, followed by electrodeposition of n-CaP. The results show that, in acidic pH, needle-like crystals appear on the surface. It is speculated that the carboxyl (carboxylic acid)/carboxylate functional groups attached directly to the rGO are essential in accelerating OH- formation and deposition of needle-like n-CaP crystals. High-resolution scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, and X-ray diffraction elucidated homogeneous, highly crystalline, n-CaP (beta-tricalcium phosphate) crystals. This composite presented an excellent in vitro biomineralization after soaking in simulated body fluid. (C) 2016 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 11/20345-7 - Study of nanoparticle-incorporated diamond-like carbon films for biomedical applications
Grantee:Fernanda Roberta Marciano
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 11/17877-7 - Development of new polymeric scaffolds by electrospinning technique with incorporation of vertically aligned carbon nanotubes and nanohidroxyapatite for bone tissue regeneration
Grantee:Anderson de Oliveira Lobo
Support Opportunities: Research Grants - Young Investigators Grants