Localized controlled drug delivery from mesoporous implantsShow others and affiliations
2014 (English)In: Technical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014, Nano Science and Technology Institute , 2014, Vol. 2, p. 250-253Conference paper, Published paper (Refereed)
Abstract [en]
Mesoporous materials possess both a well-defined topography on the nanometer scale, and they may serve as hosts for drugs. In this work, titanium implants coated with mesoporous TiO2 thin films have been evaluated both in vitro and in vivo. Material characterization showed that, long-range ordered mesoporous TiO2, with a pore-size of 6 nm, and a narrow pore-size distribution were obtained. An in vivo study demonstrated that the films were robust enough to withstand the implantation procedure. The in vitro apatite formation experiments showed that formation of apatite was higher on the mesoporous surface compared to its nonporous counterpart. In a separate in vivo study, two osteoporosis drugs, alendronate (ALN) and raloxifene (RLX), were immobilised into the nanoporous oxide films. The in vitro drug release tests carried out showed a sustained release of both drugs. The osteogenic response after 28 days of implantation of the drug-loaded implants showed a significantly improved bone fixation.
Place, publisher, year, edition, pages
Nano Science and Technology Institute , 2014. Vol. 2, p. 250-253
Keywords [en]
Drug delivery, Implant coating, Mesoporous titania, Nanotopography, Osseointegration
National Category
Odontology
Identifiers
URN: urn:nbn:se:mau:diva-74263Scopus ID: 2-s2.0-84907389088ISBN: 9781482258271 (print)OAI: oai:DiVA.org:mau-74263DiVA, id: diva2:1939349
Conference
Nanotechnology 2014: MEMS, Fluidics, Bio Systems, Medical, Computational and Photonics - 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014, 15-18 Jun 2014, , United States of America
2025-02-212025-02-212025-02-21Bibliographically approved