title: Compare study CaCO3 crystals on the cellulose substrate by microwave-assisted method and ultrasound agitation method.
abstract: The purposes of this article were to investigate the influences of synthesis strategy on the CaCO(3) crystals on the cellulose substrate. In this study, CaCO(3) crystals were synthesized using cellulose as matrix by the microwave-assisted method and ultrasound agitation method, respectively. The CaCO(3) crystals on the cellulose substrate were characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Experimental results demonstrated that the synthesis strategy had a dramatically influences on the phase, microstructure, morphology, thermal stability, and biological activity of the CaCO(3) crystals. The pure phase of vaterite spheres with the diameter of about 320-600nm were obtained by ultrasound agitation method, meanwhile, the mixed phases of calcite and vaterite with the diameter of about 0.82-1.24μm were observed by microwave-assisted method. In view of experimental results, one can conclude that the ultrasound agitation method do more favors to the synthesis of CaCO(3) crystals with uniform morphology and size, compared with microwave-assisted method. Furthermore, cytotoxicity experiments indicated that the CaCO(3) crystals on the cellulose substrate had good biocompatibility and could be a candidate for the biomedical applications.
authors.affiliation: Institute of Biomass Chemistry and Technology, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, PR China.
authors.forename: Lian-Hua
authors.initials: LH
authors.lastname: Fu
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Dong
authors.forename: Ming-Guo
authors.initials: MG
authors.lastname: Ma
authors.forename: Shu-Ming
authors.initials: SM
authors.lastname: Li
authors.forename: Run-Cang
authors.initials: RC
authors.lastname: Sun
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry* / Q000633:toxicity; D002119:Calcium Carbonate / Q000737:chemistry* / Q000633:toxicity; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D002482:Cellulose / Q000737:chemistry* / Q000633:toxicity; D003460:Crystallization; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D008872:Microwaves; D010316:Particle Size; D013010:Sonication / Q000379:methods*; D013499:Surface Properties; D014961:X-Ray Diffraction
chemical_list: D001672:Biocompatible Materials; D002482:Cellulose; D002119:Calcium Carbonate; C109691:microcrystalline cellulose