Abstract
Cement industry causes many respiratory diseases due to the formation of bypass cement dust (BCD) as by-product. For this purpose a new study to get ride BCD from the environment by prepared three selected bioglasses samples with composition Na2O(10) + P2O5(90-x) + BCD(x) where x value = 10, 20, 30 in mol%. BCD contains an appropriate amount of calcium ions that can contribute in bioglass formulation for bone regeneration. Cooperative characterization for the prepared glasses were carried out through FTIR and SEM analysis before and after immersion in simulated body fluid (SBF) solution for up to 23 days at 37 degrees C. Therefore, the three samples can only be directly compared in the range of BCD content between 10 and 30 wt.%. After immersion in SBF, porous apatite layer is formed on the glass surface after 13 days and become denser after 23 days. Our results showing that, the porous hydroxy apatite layer was formed faster in the BCD 30 sample than in the BCD10 and BCD 20 samples. Further, SEM analysis revealed the formation of highly porous apatite layer on the composite surfaces when immersed in SBF solution at 37 degrees C. These porous structures provide channels for bone in growth and improve the microscopic bioresorption. The predicting radiation damage and atomic displacements per atom in BCD-30 sample if it was implanted to a patient exposed to radiotherapy or x-rays has been calculated and compared with natural bone. The gamma shielding parameters, mass stopping power (MSP), range for both proton (H-ions) and alpha (He-ions) in bioglass-BCD-30 and human bone tissue have estimated.