title: Mechanical properties of organically modified silicates for bone regeneration.
abstract: In this paper, different organic-inorganic hybrid materials based in the CaO-SiO(2)-poly(dimethyl siloxane) PDMS system have been characterised by means of nanoindentation and their static mechanical properties (Young's modulus, and hardness) have been investigated. These mechanical properties have been discussed in relation to the chemical composition and structure of the different hybrid materials. Besides, the mechanical behaviour of hybrid materials is visco-elastic and it therefore presents phenomena of creep that will be influenced by the temperature of the mechanical test; undoubtedly, a temperature of 37 degrees C accelerates the processes of creep.
authors.affiliation: Departamento de Química Inorgánica y Bioinorgánica, Facultad de Farmacia, Universidad Complutense de Madrid, 28040, Madrid, Spain.
authors.forename: Miguel
authors.initials: M
authors.lastname: Manzano
authors.forename: Antonio J
authors.initials: AJ
authors.lastname: Salinas
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Gil
authors.forename: María
authors.initials: M
authors.lastname: Vallet-Regí
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry; D001861:Bone Regeneration; D017610:Calcium Compounds / Q000737:chemistry; D002625:Chemistry, Organic / Q000379:methods; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D004548:Elasticity; D006244:Hardness; D006801:Humans; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning / Q000379:methods; D008968:Molecular Conformation; D010087:Oxides / Q000737:chemistry; D017640:Silicates / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods; D013314:Stress, Mechanical; D013696:Temperature
chemical_list: D001672:Biocompatible Materials; D017610:Calcium Compounds; D004129:Dimethylpolysiloxanes; D010087:Oxides; D017640:Silicates; C013830:baysilon; D012822:Silicon Dioxide; C016538:lime