Cerium-doped calcium phosphates precipitated on bacterial cellulose platform by mineralization

Full text
Author(s):	Sousa, Ricardo Barbosa ; Dametto, Alessandra Cristina ; Sabio, Rafael Miguel ; de Carvalho, Renata Aquino ; Vieira, Ewerton Gomes ; do Amaral Oliveira, Andre Felipe ; Ribeiro, Lara Kelly ; Barud, Hernane S. ; Silva-Filho, Edson C. Total Authors: 9
Document type:	Journal article
Source:	CERAMICS INTERNATIONAL; v. 46, n. 17, p. 6-pg., 2020-12-01.
Abstract
Bacterial cellulose (BC) membranes biosynthesized by Komagataeibacter rhaeticus AF1 strain were used as a platform for precipitating cerium-doped calcium phosphates (Ce:CaP), which were synthetized by successive soaking of BC membranes in solutions containing Ca2+, PO43- and Ce3+ precursor ions. After obtaining the as-prepared composites, BC-Ce:CaP was submitted to a thermal treatment at 600 degrees C for 3 h, and Ce:CaP was characterized by scanning electronic microscopy (SEM), energy dispersive X-ray spectrometry (EDX), thermogravimetric analysis (TG), derivative thermogravimetric analysis (DTG) and X-ray diffraction (XRD). Ce:CaP presented hydroxyapatite, chlorapatite and buchwaldite (sodium calcium phosphate) phases and revealed a trabecular structure composed per nanowires with interconnected pores. Furthermore, BC-Ce:CaP and Ce:CaP show cell viability and has been suggested for use as a mineral scaffold. (AU)

FAPESP's process:	18/25512-8 - Biocelulose-based Cell Culture Platform
Grantee:	Hernane da Silva Barud
Support Opportunities:	Regular Research Grants