Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivity
In this work ternary bioactive glasses with the molar composition 63 % SiO2, 28 % CaO, and 9 % P2O5 have been prepared via sol-gel processing route leading to xerogel or aerogel glasses, depending on the drying conditions. Two types of drying methods were used: atmospheric pressure drying (evaporati...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SciCell s.r.o.
2018-12-01
|
| Series: | Nova Biotechnologica et Chimica |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/nbec.2018.17.issue-2/nbec-2018-0016/nbec-2018-0016.xml?format=INT |
| _version_ | 1811345272703287296 |
|---|---|
| author | Ksouri Dalila Khireddine Hafit Aksas Ali Valente Tiago Bir Fatima Slimani Nadir Cabal Belén Torrecillas Ramón Santos José Domingos |
| author_facet | Ksouri Dalila Khireddine Hafit Aksas Ali Valente Tiago Bir Fatima Slimani Nadir Cabal Belén Torrecillas Ramón Santos José Domingos |
| author_sort | Ksouri Dalila |
| collection | DOAJ |
| description | In this work ternary bioactive glasses with the molar composition 63 % SiO2, 28 % CaO, and 9 % P2O5 have been prepared via sol-gel processing route leading to xerogel or aerogel glasses, depending on the drying conditions. Two types of drying methods were used: atmospheric pressure drying (evaporative), to produce xerogels, and supercritical fluids drying, to obtain aerogels. Both dried gels were subjected to heat-treatment at three different temperatures: 400, 600 and 800 ºC in order to the removal of synthesis byproducts and structural modifications. The resulting materials were characterized by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA) and differential thermal analysis (DTA), and by in vitro bioactivity tests in simulated body fluid. The influence of the drying and the sintering temperature of their structure, morphology, and bioactivity of the final products were evaluated. The results show a good bioactivity of xerogel and aerogel bioactive glass powders with the formation of an apatite layer after one day of immersion in SBF solution for aerogel bioactive glass powders and a particle size less than 10 nm. An apatite layer formed after 3 days in the case of xerogel bioactive glass powders and a particle size around 100 nm. |
| first_indexed | 2024-04-13T20:01:39Z |
| format | Article |
| id | doaj.art-e18672cda4f241c79f1f16cc842949f7 |
| institution | Directory Open Access Journal |
| issn | 1339-004X |
| language | English |
| last_indexed | 2024-04-13T20:01:39Z |
| publishDate | 2018-12-01 |
| publisher | SciCell s.r.o. |
| record_format | Article |
| series | Nova Biotechnologica et Chimica |
| spelling | doaj.art-e18672cda4f241c79f1f16cc842949f72022-12-22T02:32:12ZengSciCell s.r.o.Nova Biotechnologica et Chimica1339-004X2018-12-0117215015910.2478/nbec-2018-0016nbec-2018-0016Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivityKsouri Dalila0Khireddine Hafit1Aksas Ali2Valente Tiago3Bir Fatima4Slimani Nadir5Cabal Belén6Torrecillas Ramón7Santos José Domingos8Laboratoire de Génie de l’Environnement (LGE), Faculté de Technologie, Université de Bejaia,Bejaia, 06000, AlgerieLaboratoire de Génie de l’Environnement (LGE), Faculté de Technologie, Université de Bejaia,Bejaia, 06000, AlgerieLaboratoire de Génie de l’Environnement (LGE), Faculté de Technologie, Université de Bejaia,Bejaia, 06000, AlgerieDepartment of Materials, Faculty of Engineering, University of Porto (FEUP),Lisbon, PortugalLaboratoire de Génie de l’Environnement (LGE), Faculté de Technologie, Université de Bejaia,Bejaia, 06000, AlgerieDepartment of Materials, Faculty of Engineering, University of Porto (FEUP),Lisbon, PortugalNanomaterials and Nanotechnology Research Center (CINN), CSIC - University of Oviedo (UO), Avda de la Vega 4-6, El Entrego 33940,San Martín del Rey Aurelio, SpainNanomaterials and Nanotechnology Research Center (CINN), CSIC - University of Oviedo (UO), Avda de la Vega 4-6, El Entrego 33940,San Martín del Rey Aurelio, SpainDepartment of Materials, Faculty of Engineering, University of Porto (FEUP),Lisbon, PortugalIn this work ternary bioactive glasses with the molar composition 63 % SiO2, 28 % CaO, and 9 % P2O5 have been prepared via sol-gel processing route leading to xerogel or aerogel glasses, depending on the drying conditions. Two types of drying methods were used: atmospheric pressure drying (evaporative), to produce xerogels, and supercritical fluids drying, to obtain aerogels. Both dried gels were subjected to heat-treatment at three different temperatures: 400, 600 and 800 ºC in order to the removal of synthesis byproducts and structural modifications. The resulting materials were characterized by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA) and differential thermal analysis (DTA), and by in vitro bioactivity tests in simulated body fluid. The influence of the drying and the sintering temperature of their structure, morphology, and bioactivity of the final products were evaluated. The results show a good bioactivity of xerogel and aerogel bioactive glass powders with the formation of an apatite layer after one day of immersion in SBF solution for aerogel bioactive glass powders and a particle size less than 10 nm. An apatite layer formed after 3 days in the case of xerogel bioactive glass powders and a particle size around 100 nm.http://www.degruyter.com/view/j/nbec.2018.17.issue-2/nbec-2018-0016/nbec-2018-0016.xml?format=INTAerogel Bioactive glass Bioactivity Sol-gel 63S |
| spellingShingle | Ksouri Dalila Khireddine Hafit Aksas Ali Valente Tiago Bir Fatima Slimani Nadir Cabal Belén Torrecillas Ramón Santos José Domingos Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivity Nova Biotechnologica et Chimica Aerogel Bioactive glass Bioactivity Sol-gel 63S |
| title | Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivity |
| title_full | Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivity |
| title_fullStr | Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivity |
| title_full_unstemmed | Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivity |
| title_short | Synthesis of ternary bioactive glass derived aerogel and xerogel: study of their structure and bioactivity |
| title_sort | synthesis of ternary bioactive glass derived aerogel and xerogel study of their structure and bioactivity |
| topic | Aerogel Bioactive glass Bioactivity Sol-gel 63S |
| url | http://www.degruyter.com/view/j/nbec.2018.17.issue-2/nbec-2018-0016/nbec-2018-0016.xml?format=INT |
| work_keys_str_mv | AT ksouridalila synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity AT khireddinehafit synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity AT aksasali synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity AT valentetiago synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity AT birfatima synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity AT slimaninadir synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity AT cabalbelen synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity AT torrecillasramon synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity AT santosjosedomingos synthesisofternarybioactiveglassderivedaerogelandxerogelstudyoftheirstructureandbioactivity |