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Pregled bibliografske jedinice broj: 603569

Effect of thermal treatments on sputtered silver nanocluster/ silica composite coatings on soda-lime glasses : ionic exchange and antibacterial activity


Ferraris, M.; Ferraris, S.; Miola, M.; Perero, S.; Balagna, C.; Verne, E.; Gautier, G.; Manfredotti, Ch.; Battiato, A.; Vittone, E. et al.
Effect of thermal treatments on sputtered silver nanocluster/ silica composite coatings on soda-lime glasses : ionic exchange and antibacterial activity // Journal of nanoparticle research, 14 (2012), 1287-1 doi:10.1007/s11051-012-1287-5 (međunarodna recenzija, članak, znanstveni)


Naslov
Effect of thermal treatments on sputtered silver nanocluster/ silica composite coatings on soda-lime glasses : ionic exchange and antibacterial activity

Autori
Ferraris, M. ; Ferraris, S. ; Miola, M. ; Perero, S. ; Balagna, C. ; Verne, E. ; Gautier, G. ; Manfredotti, Ch. ; Battiato, A. ; Vittone, E. ; Speranza, G. ; Bogdanovic, Ivančica

Izvornik
Journal of nanoparticle research (1388-0764) 14 (2012); 1287-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Antibacterial; sputtering; silver nanoclusters; ionic exchange; soda-lime

Sažetak
Silver nanocluster/silica composite coatings were deposited on both soda-lime and silica glasses by radio frequency (RF) co-sputtering. The effect of thermal treatments on the microstructure in the range of 150–450 C were examined by UV– visible spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Time of Flight-Elastic Recoil Detection Analysis. Sodium/silver ionic exchange was evidenced for coatings sputtered on soda-lime substrates after heating at 450 C ; presence of silver ions and/or silver nanoclusters, nanocluster size and their position inside the sputtered layers will be discussed for as-deposited and heated coatings on both substrates. The antibacterial activity of all coatings was determined against Staphylococcus aureus and Candida albicans by disk diffusion method and colonies forming units count ; in agreement with microstructural results, the antibacterial activity present on all coatings was slightly reduced after heating at 450 C. All coatings have been submitted to humidity plus UV ageing and sterilization by autoclave, gamma ray and ethylene oxide gas. Tape resistance (ASTM D3359-97) tests have been done on each coating before and after ageing and sterilizations, revealing a good adhesion on soda-lime substrates, except for those aged in humidity plus UV and sterilized by autoclave. Scratch tests and nanoindentation tests have been done on each coating, as-deposited and after heating at 450 C. The coating hardness was improved by heating only when coatings were deposited on silica. The heating of coatings deposited on soda-lime substrates gave opposite effect on their hardness.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-1191005-2876 - Procesi interakcije ionskih snopova i nanostrukture (Milko Jakšić, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Autor s matičnim brojem:
Ivančica Bogdanović-Radović, (180511)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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