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Models of structure, dynamics and reactivity of bioglasses: a review

Tilocca, A; (2010) Models of structure, dynamics and reactivity of bioglasses: a review. J MATER CHEM , 20 (33) 6848 - 6858. 10.1039/c0jm01081b.

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Abstract

Due to their high biocompatibility and osteoconductivity, bioactive silicate glasses are the core components of biomaterials used to repair, restore and regenerate bone and tissues in the human body. One of the key features, which control their bioactivity, is the fast surface dissolution in a biological medium, with the release of critical amounts of ions in the surrounding environment. Being able to understand these inorganic processes at the atomistic level is essential if a more rational approach to the use of these materials is sought. Over the past five years, atomistic simulations of bioglasses have revealed details of bulk structural features which affect the glass dissolution and thus its bioactivity, such as the connectivity of the silicate network and the tendency to form chains, rings and clusters. Further simulations have started to focus directly on the details of the glass surface and of its reactivity in an aqueous environment. This article reviews recent computational approaches used to investigate the properties of bioglasses crucial for their bioactive behaviour.

Type:Article
Title:Models of structure, dynamics and reactivity of bioglasses: a review
DOI:10.1039/c0jm01081b
Keywords:INITIO MOLECULAR-DYNAMICS, BIOACTIVE SILICATE-GLASSES, BONE-GROWTH BEHAVIOR, SOL-GEL GLASSES, AMORPHOUS SILICA, ELECTRONIC-PROPERTIES, FORCE-FIELD, PARTICULATE BIOGLASS(R), COMPUTER-SIMULATION, TRISILOXANE RINGS
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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