Er3+/Yb3+ co-doped bioactive glasses with up-conversion luminescence prepared by containerless processing. Issue 11 (15th August 2016)

• Record Type: Journal Article
• Authors: Li, Qin; Xing, Min; Chen, Zhi; Wang, Xiaoya; Zhao, Cancan; Qiu, Jianrong; Yu, Jianding; Chang, Jiang
• Is Part Of: Ceramics international. Volume 42:Issue 11(2016)
• Page Start: 13168
• Page End: 13175
• Publication Date: 2016-08-15
• Subjects: Up-conversion luminescence -- Bioactive glasses -- Bioactivity -- Containerless processing; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2016.05.108
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Er 3+ /Yb 3+ co-doped bioactive glasses were prepared via containerless processing in an aerodynamic levitation furnace. The as-prepared glasses were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM) equipped with energy dispersive X-Ray spectroscopy (EDX). The up-conversion luminescence of as-prepared glasses was measured using an Omni- 3007 spectrometer. Furthermore, the in vitro bioactivity was evaluated by soaking the materials in simulated body fluid, and the biocompatibility was evaluated in MC3T3-E1 cell culture. The results show that containerless processing is a unique method to prepare homogeneous rare earth doped bioactive glasses. The obtained Er 3+ /Yb 3+ co-doped glasses show green and red up-conversion luminescence at the excitation of 980 nm laser. The XRD analysis confirmed that calcium silicate powders, as starting materials, were completely transformed from the original multi-crystalline phase (CS-P) into the amorphous-glassy phase (CS-G, EYS, LCS) via containerless processing. The SEM observation combined with EDX and FTIR analyses showed that the as-prepared glasses were bioactive. The cell proliferation assay also revealed that the as-prepared glasses were biocompatible and nontoxic to MC3T3-E1 cells. This study suggests that the luminescent bioactive glasses prepared by containerless processing could be used for studying biodegradation of bone implantation materials.