Preliminary Studies on the Synthesis and Antimicrobial activity of TiO2/Ag/Au nanoparticles on materials for sanitation of indoor Ambient Assisted Living environments.

Preliminary Studies on the Synthesis and Antimicrobial activity of TiO2/Ag/Au nanoparticles on materials for sanitation of indoor Ambient Assisted Living environments. Ramadori A. T. a,b Galassi R.,a Micozzi, D.,c Pucciarelli, S. c a School of Science and Technology, Chemistry Division, University of Camerino, Via S. Agostino 1, 62032 Camerino; e-mail: annateresa.ramadori@unicam.it b Fellow from T.R.A.S.P.A.R.E.N:T.E project c School of Biology, Chemistry Division, University of Camerino, Via S. Agostino 1, 62032 Camerino; Infectious diseases contracted in the home environment are still a significant problem in the western world due to the excessive use of antibiotics, the occurrence of bacterial resistance and not always correct behavior of the population; prevention and personal hygiene are able to dramatically reduce the risk of transmission, but in some circumstances, for example in the case of older people not fully self-sufficient, long-term care in hospitals and residential health and social environments, which are overcrowded and poorly ventilated, normal personal and domestic hygiene measures may be insufficient.1 Hence, in the development of new technology for the improvement of the sanitation of environments and objects, the use of nanoparticle (NP) systems2 based on Au, Ag and TiO2 NPs was taken into consideration as additives in plasters, resins for water-based paints and varnishes. TiO2 has been purchased, while different Au and Ag NPs syntheses have been perfomed.3 The NPs have been characterized by spectroscopic methods such as UV-vis or IR spectroscopy. Different formulations and concentrations of NPs have been attempted. The obtained samples were tested to evaluate their antimicrobial activity on pathogenic coltures. References: 1) a) Bruce, N.; Perez-Padilla, R.; Albalak, R. Bull.World Health Org. 2000, 78, 1078-1092. b) Gandara, A.; Mota, L. C.; Gibbs S. G. Environ. Health Perspective 2006, 114, 1859-1864. 2) Ashavani, K.; Praveen, K. V.; Pulickel, M. A.; George, J. Nature Materials 2008, doi:10.1038/nmat2099. 3) a) Wojtysiak, S.; Kudelski, A. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2012, 410, 45-51. b) Rohiman, A., Anshori, I., Surawijaya, A., Idris, I. AIP Conf. Proc. 2011, 1415, 39-42. c) Cubillana-Aguilera, L.M.; Franco-Romano, M.; Gil, M.L.A.; Naranjo-Rodríguez, I.; Hidalgo-Hidalgo de Cisneros, J. L.; Palacios-Santander, J.M. Ultrasonics Sonochemistry, 2011, 18, 789-794.