Biocomposites and Hybrid Biomaterials of Calcium Orthophosphates (CaPO4) with Polymers

2018 ◽  
Author(s):  
Sergey V. Dorozhkin
Keyword(s):  
Calcium Orthophosphates ◽  
Hybrid Biomaterials

Bioactive Silk Fibroin-Based Hybrid Biomaterials for Musculoskeletal Engineering: Recent Progress and Perspectives

2021 ◽  
Author(s):  
Rongjie Wu ◽  
Haotao Li ◽  
Yuliang Yang ◽  
Qiujian Zheng ◽  
Shengliang Li ◽  
...  
Keyword(s):  
Silk Fibroin ◽  
Recent Progress ◽  
Hybrid Biomaterials

scholarly journals Microwave-Assisted Fabrication of Mesoporous Silica-Calcium Phosphate Composites for Dental Application

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 53
Author(s):  
Adrian Szewczyk ◽  
Adrianna Skwira ◽  
Marta Ginter ◽  
Donata Tajer ◽  
Magdalena Prokopowicz
Keyword(s):  
Calcium Phosphate ◽  
Mesoporous Silica ◽  
Octacalcium Phosphate ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
Coating Solution ◽  
X Ray ◽  
Microwave Assisted ◽  
Calcium Orthophosphates ◽  
Different Types

Herein, the microwave-assisted wet precipitation method was used to obtain materials consisting of mesoporous silica (SBA-15) and calcium orthophosphates (CaP). Composites were prepared through immersion of mesoporous silica in different calcification coating solutions and then exposed to microwave radiation. The composites were characterized in terms of molecular structure, crystallinity, morphology, chemical composition, and mineralization potential by Fourier-transform infrared spectroscopy (FTIR), powder X-ray diffraction (XRD), and scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy (SEM-EDX). The application of microwave irradiation resulted in the formation of different types of calcium orthophosphates such as calcium deficient hydroxyapatite (CDHA), octacalcium phosphate (OCP), and amorphous calcium phosphate (ACP) on the SBA-15 surface, depending on the type of coating solution. The composites for which the progressive formation of hydroxyapatite during incubation in simulated body fluid was observed were further used in the production of final pharmaceutical forms: membranes, granules, and pellets. All of the obtained pharmaceutical forms preserved mineralization properties.

scholarly journals Dispersive evaluation and surface chemistry of advanced, multifunctional silica/lignin hybrid biomaterials

2013 ◽  
Vol 11 (11) ◽  
pp. 1860-1873 ◽  
Author(s):  
Magdalena Nowacka ◽  
Łukasz Klapiszewski ◽  
Małgorzata Norman ◽  
Teofil Jesionowski
Keyword(s):  
Zeta Potential ◽  
Surface Charge ◽  
Electrochemical Sensors ◽  
Relevant Information ◽  
Structural Features ◽  
Kraft Lignin ◽  
Morphological Properties ◽  
Wide Range ◽  
Hybrid Biomaterials

AbstractAdvanced silica/lignin hybrid biomaterials were obtained using hydrated or fumed silicas (Aerosil®200) and Kraft lignin as precursors, which is a cheap and biodegradable natural polymer. To extend the possible range of applications, the silicas were first modified with N-2-(aminoethyl)-3-aminopropyltrimethoxsysilane, and then with Kraft lignin, which had been oxidized with sodium periodate. The SiO2/lignin hybrids and precursors were characterised by means of determination of their physicochemical and dispersive-morphological properties. The effectiveness of silica binding to lignin was verified by FT-IR spectroscopy. The zeta potential value provides relevant information regarding interactions between colloid particles. Measurement of the zeta potential values enabled an indirect assessment of stability for the studied hybrid systems. Determination of zeta potential and density of surface charge also permitted the quantitative analysis of changes in surface charge, and indirectly confirmed the effectiveness of the proposed method for synthesis of SiO2/lignin hybrid materials. A particularly attractive feature for practical use is their stability, especially electrokinetic stability. It is expected that silica/lignin hybrids will find a wide range of applications (polymer fillers, biosorbents, electrochemical sensors), as they combine the unique properties of silica with the specific structural features of lignin. This makes these hybrids biomaterials advanced and multifunctional.

Synthetic amorphous calcium phosphates (ACPs):preparation, structure, properties and biomedical applications

2021 ◽  
Author(s):  
Sergey V Dorozhkin
Keyword(s):  
Physical Properties ◽  
Biomedical Applications ◽  
Calcium Phosphates ◽  
Amorphous State ◽  
Calcium Orthophosphates ◽  
Structure Properties

Amorphous calcium phosphates (ACPs) represent a metastable amorphous state of other calcium orthophosphates (abbreviated as CaPO4) possessing variable compositional but rather identical glass-like physical properties, in which there are neither...

Studies on the Availability of Calcium Orthophosphates to Chickens and Turkeys

1962 ◽  
Vol 78 (2) ◽  
pp. 155-161 ◽  
Author(s):  
M. B. Gillis ◽  
H. M. Edwards ◽  
R. J. Young
Keyword(s):  
Calcium Orthophosphates

scholarly journals Preparation of hybrid biomaterials for bone tissue engineering

2007 ◽  
Vol 10 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Vilma Conceição Costa ◽  
Hermes Souza Costa ◽  
Wander Luiz Vasconcelos ◽  
Marivalda de Magalhães Pereira ◽  
Rodrigo Lambert Oréfice ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Hybrid Biomaterials

In situ polymerization of pyrrole in animal tissue in the formation of hybrid biomaterials

Biomaterials ◽  
1995 ◽  
Vol 16 (8) ◽  
pp. 657-661 ◽  
Author(s):  
Eugene Khor ◽  
Hwee Chze Li ◽  
Aileen Wee
Keyword(s):  
In Situ Polymerization ◽  
Animal Tissue ◽  
Hybrid Biomaterials
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