Pregled bibliografske jedinice broj: 626831
Chemical Stability of Silver Nanoparticles: Environmental Fate
Chemical Stability of Silver Nanoparticles: Environmental Fate // 23rd Croatian Meeting of Chemists and Chemical Engineers - Book of Abstracts / Hadžiev, Andrea ; Blažeković, Zdenko (ur.).
Osijek: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2013. str. 89-89 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 626831 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Chemical Stability of Silver Nanoparticles: Environmental Fate
Autori
Vinković Vrček, I. ; Zebić Avdičević, M. ; Goessler, W. ; Dobrović, S.
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
23rd Croatian Meeting of Chemists and Chemical Engineers - Book of Abstracts
/ Hadžiev, Andrea ; Blažeković, Zdenko - Osijek : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2013, 89-89
ISBN
978-953-6894-50-5
Skup
XXIII. hrvatski skup kemičara i kemijskih inženjera / XXIII Croatian Meeting of Chemists and Chemical Engineers
Mjesto i datum
Osijek, Hrvatska, 21.04.2013. - 24.04.2013
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
silver nanoparticles; citrate; stability; aggregation
Sažetak
The environmental fate of commercial metallic nanoparticles is of significant interest to regulatory authorities. This research investigated the stability of silver nanoparticles (AgNPs) as popular representative of nanomaterials increasingly used in commercial products due to their antimicrobial properties. Pure, ion-free, citrate-stabilized AgNPs were synthesized as model system. The effects of ionic strength, pH (3-9) and the presence of surfactant molecules on the stability of AgNP was investigated using UV-Vis spectroscopy, ICP-MS, dynamic light scattering (DLS), transmission electron microscopy (TEM) and electrochemical methods. Aggregation behavior, ion release and surface charge properties were used as parameters for stability evaluation. Obtained results revealed that high ionic strength, as well as significant increase and/or decrease in pH of medium, destabilizes citrate-coated AgNPs. It was also observed that AgNP aggregation and silver ion release from the AgNP surface were significantly reduced in the presence of negatively charged surfactant molecules. The results showed that the understanding of the influence of pH, ionic strength and different biomolecules is essential for predicting the stability and fate of silver nanomaterial as an unavoidable part of afterwards exposure modeling.
Izvorni jezik
Engleski
Znanstvena područja
Kemija, Kemijsko inženjerstvo, Javno zdravstvo i zdravstvena zaštita
POVEZANOST RADA
Projekti:
022-0222148-2135 - Izloženost metalima i njihovi učinci u graviditetu i postnatalnom razdoblju (Piasek, Martina, MZOS ) ( CroRIS)
Ustanove:
Institut za medicinska istraživanja i medicinu rada, Zagreb,
Fakultet strojarstva i brodogradnje, Zagreb
