caa a22 4500 445321326 CHVBK 20180317142705.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10534-011-9469-7 doi (NATIONALLICENCE)springer-10.1007/s10534-011-9469-7 Complexation- and ligand-induced metal release from 316L particles: importance of particle size and crystallographic structure [Elektronische Daten] [Yolanda Hedberg, Jonas Hedberg, Yi Liu, Inger Wallinder] Iron, chromium, nickel, and manganese released from gas-atomized AISI 316L stainless steel powders (sized <45 and <4μm) were investigated in artificial lysosomal fluid (ALF, pH 4.5) and in solutions of its individual inorganic and organic components to determine its most aggressive component, elucidate synergistic effects, and assess release mechanisms, in dependence of surface changes using atomic absorption spectroscopy, Raman, XPS, and voltammetry. Complexation is the main reason for metal release from 316L particles immersed in ALF. Iron was mainly released, while manganese was preferentially released as a consequence of the reduction of manganese oxide on the surface. These processes resulted in highly complexing media in a partial oxidation of trivalent chromium to hexavalent chromium on the surface. The extent of metal release was partially controlled by surface properties (e.g., availability of elements on the surface and structure of the outermost surface) and partially by the complexation capacity of the different metals with the complexing agents of the different media. In general, compared to the coarse powder (<45μm), the fine (<4μm) powder displayed significantly higher released amounts of metals per surface area, increased with increased solution complexation capacity, while less amounts of metals were released into non-complexing solutions. Due to the ferritic structure of lower solubility for nickel of the fine powder, more nickel was released into all solutions compared with the coarser powder. Springer Science+Business Media, LLC., 2011 Stainless steel nationallicence Powder nationallicence Complexation nationallicence Metal release nationallicence Dissolution nationallicence Inhalation nationallicence Hedberg Yolanda Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), Drottning Kristinas väg 51, 10044, Stockholm, Sweden aut Hedberg Jonas Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), Drottning Kristinas väg 51, 10044, Stockholm, Sweden aut Liu Yi Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), Drottning Kristinas väg 51, 10044, Stockholm, Sweden aut Wallinder Inger Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), Drottning Kristinas väg 51, 10044, Stockholm, Sweden aut BioMetals Springer Netherlands 24/6(2011-12-01), 1099-1114 0966-0844 24:6<1099 2011 24 10534 https://doi.org/10.1007/s10534-011-9469-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10534-011-9469-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hedberg Yolanda Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), Drottning Kristinas väg 51, 10044, Stockholm, Sweden aut NATIONALLICENCE 700 1- Hedberg Jonas Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), Drottning Kristinas väg 51, 10044, Stockholm, Sweden aut NATIONALLICENCE 700 1- Liu Yi Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), Drottning Kristinas väg 51, 10044, Stockholm, Sweden aut NATIONALLICENCE 700 1- Wallinder Inger Division of Surface and Corrosion Science, Royal Institute of Technology (KTH), Drottning Kristinas väg 51, 10044, Stockholm, Sweden aut NATIONALLICENCE 773 0- BioMetals Springer Netherlands 24/6(2011-12-01), 1099-1114 0966-0844 24:6<1099 2011 24 10534 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer