Influence of Polymeric Blends on Bioceramics of Hydroxyapatite
Bioceramics are used to repair, rebuild, and replace parts of the human body, e.g., bones, joints and teeth, in the form of powder, coatings or prostheses. The synthetic hydroxyapatite [Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>(OH)<sub>2</sub> (HAP)]...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/10/1429 |
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| author | Eduardo da Silva Gomes Antônia Millena de Oliveira Lima Sílvia Rodrigues Gavinho Manuel Pedro Fernandes Graça Susana Devesa Ana Angélica Mathias Macêdo |
| author_facet | Eduardo da Silva Gomes Antônia Millena de Oliveira Lima Sílvia Rodrigues Gavinho Manuel Pedro Fernandes Graça Susana Devesa Ana Angélica Mathias Macêdo |
| author_sort | Eduardo da Silva Gomes |
| collection | DOAJ |
| description | Bioceramics are used to repair, rebuild, and replace parts of the human body, e.g., bones, joints and teeth, in the form of powder, coatings or prostheses. The synthetic hydroxyapatite [Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>(OH)<sub>2</sub> (HAP)] based on calcium phosphate has been widely used in the medical and dental areas due to the chemical similarity with the inorganic component of human bone tissue. In this work, hydroxyapatite nanocrystalline powders were synthesized by the solid-state reaction method and sintered with a galactomannan and chitosan blend. The bioceramics studied were prepared from 70%, 80% and 90% of hydroxyapatite with 30%, 20% and 10% of galactomannan and chitosan blends, respectively. The influence of the blend content on the bioceramics was investigated through structural, vibrational, thermal, morphological and dielectric characterizations. It was observed that the increase in the blend percentage promoted an increase in the grain size, which was followed by a decrease in the density and hardness of the samples. The sample with a higher amount of polymeric blend also presented a higher dielectric constant and higher losses. |
| first_indexed | 2024-03-10T21:20:00Z |
| format | Article |
| id | doaj.art-b7ef19020d2d466a9b0ab9f5c6bff2f9 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T21:20:00Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-b7ef19020d2d466a9b0ab9f5c6bff2f92023-11-19T16:09:06ZengMDPI AGCrystals2073-43522023-09-011310142910.3390/cryst13101429Influence of Polymeric Blends on Bioceramics of HydroxyapatiteEduardo da Silva Gomes0Antônia Millena de Oliveira Lima1Sílvia Rodrigues Gavinho2Manuel Pedro Fernandes Graça3Susana Devesa4Ana Angélica Mathias Macêdo5Federal Institute of Maranhão (IFMA)—Campus Imperatriz, Research Laboratory, Imperatriz 65919-050, BrazilFederal Institute of Maranhão (IFMA)—Campus Imperatriz, Research Laboratory, Imperatriz 65919-050, BrazilI3N and Physics Department, University of Aveiro, 3810-193 Aveiro, PortugalI3N and Physics Department, University of Aveiro, 3810-193 Aveiro, PortugalCEMMPRE, Centre for Mechanical Engineering, Materials and Processes, Department of Mechanical Engineering, University of Coimbra, Rua Luís Reis Santos, 3030-788 Coimbra, PortugalFederal Institute of Maranhão (IFMA)—Campus Imperatriz, Research Laboratory, Imperatriz 65919-050, BrazilBioceramics are used to repair, rebuild, and replace parts of the human body, e.g., bones, joints and teeth, in the form of powder, coatings or prostheses. The synthetic hydroxyapatite [Ca<sub>10</sub>(PO<sub>4</sub>)<sub>6</sub>(OH)<sub>2</sub> (HAP)] based on calcium phosphate has been widely used in the medical and dental areas due to the chemical similarity with the inorganic component of human bone tissue. In this work, hydroxyapatite nanocrystalline powders were synthesized by the solid-state reaction method and sintered with a galactomannan and chitosan blend. The bioceramics studied were prepared from 70%, 80% and 90% of hydroxyapatite with 30%, 20% and 10% of galactomannan and chitosan blends, respectively. The influence of the blend content on the bioceramics was investigated through structural, vibrational, thermal, morphological and dielectric characterizations. It was observed that the increase in the blend percentage promoted an increase in the grain size, which was followed by a decrease in the density and hardness of the samples. The sample with a higher amount of polymeric blend also presented a higher dielectric constant and higher losses.https://www.mdpi.com/2073-4352/13/10/1429hydroxyapatitegalactomannanchitosanpolymeric blendbioceramics |
| spellingShingle | Eduardo da Silva Gomes Antônia Millena de Oliveira Lima Sílvia Rodrigues Gavinho Manuel Pedro Fernandes Graça Susana Devesa Ana Angélica Mathias Macêdo Influence of Polymeric Blends on Bioceramics of Hydroxyapatite Crystals hydroxyapatite galactomannan chitosan polymeric blend bioceramics |
| title | Influence of Polymeric Blends on Bioceramics of Hydroxyapatite |
| title_full | Influence of Polymeric Blends on Bioceramics of Hydroxyapatite |
| title_fullStr | Influence of Polymeric Blends on Bioceramics of Hydroxyapatite |
| title_full_unstemmed | Influence of Polymeric Blends on Bioceramics of Hydroxyapatite |
| title_short | Influence of Polymeric Blends on Bioceramics of Hydroxyapatite |
| title_sort | influence of polymeric blends on bioceramics of hydroxyapatite |
| topic | hydroxyapatite galactomannan chitosan polymeric blend bioceramics |
| url | https://www.mdpi.com/2073-4352/13/10/1429 |
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