Inelastic neutron scattering for biomaterials prepared by sol-gel technology

Graphene and graphene oxide (GO) layers have become a hotspot so far and have been actively investigated to build new composite materials. The presence of abundant epoxide, hydroxyl and carboxylic groups on the GO basal plane could provide enormous reactive sites for chemical interactions. For that reason, calcium phosphates/graphene oxide (CaP-GO) bio-composites at different compositions were prepared by using the sol-gel technology in order to obtain a good distribution of CaP nanoparticles in the GO sheet. Motivated by the good results obtained by process synthesis and by preliminary investigations, we are determined to explore the vibrational dynamics and the effective chemical interactions between the components.

石墨烯及氧化石墨烯（graphene oxide，GO）层迄今已成为研究热点，被广泛探索用于构建新型复合材料。氧化石墨烯基面富含环氧基、羟基与羧基，可为化学反应提供大量活性位点。鉴于此，本研究采用溶胶-凝胶法制备了不同组分的磷酸钙/氧化石墨烯（calcium phosphates/graphene oxide，CaP-GO）生物复合材料，以实现磷酸钙纳米颗粒在氧化石墨烯片层中的均匀分散。受合成工艺获得的良好结果及前期研究启发，本研究旨在探索各组分间的振动动力学行为与有效化学相互作用。