Oral Presentation for Green Chemistry Conference- Sihem Chehlatt
Sihem Chehlatt
National School of Biotechnology “Taoufik Khaznadar” (ENSB), Algeria
Title : Preparation and study of bioactive ceramics containing different wt% B2O3 prepared from local raw materials


Abstract: Wollastonite (CaSiO3) ceramics have been proposed as a medical material for artificial bone and dental root. In this work, powders were synthesized by mixture of (CaO) and (SiO2). The samples were sintered at different temperaturs (1050-1150) for 2h. Moreover, amounts of B2O3 (wt%) have been added. The in vitro bioactivity of both CaSiO3 and B2O3-CaSiO3 ceramics was investigated by soaking the powders in simulated body fluid (SBF) for various time periods to analyze the growth of hydroxyapatite (HA) on the surface of the powders. All the materials showed to be highly bioactive through the formation of a homogeneous HA on their surfaces. The B2O3-CaSiO3 showed strong hydration in the early stages of soaking in the SBF, and the hydration was favorable for formation of carbonated HA. The results obtained indicate that the addition of B2O3 improved the biological properties of pure wollastonite.

Audience Takeaway:

  • Helps participants  to learn new ways to prepare bio-ceramics
  • The method of preparation and research results can be used to teach students new, simple and inexpensive methods for preparing vital subjects.
  • Provides possible solutions to health problems as a medical material for damaged bone replacement (artificial bone) and dentistry (dental root).


Dr. Sihem Chehlatt studied physics at Constantine University 1, Algeria. She then joined the research group of Prof. Harabi at the Bio-Ceramics Laboratory, Constantine University 1. She received her PhD degree in 2012 in Materials Science (Department of Physics, University of Constantine 1, Algeria).Professor at the National Higher School of Biotechnology and a member of the teaching team in Master of Health and Biomaterials. The field of research is bio-ceramics and biomaterials used in various applications, (the main objective is to form research teams of physicists, chemists, biologists and doctors to develop bio-ceramics and their applications in many fields).