Biogeochemical cycling of gold: Transforming gold particles from arctic Finland
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2018.03.021
Abstract: Abstract (Bio)geochemical cycling of gold (Au) has been demonstrated in present-day (semi)-arid, (sub)-tropical and temperate environment. Hereby biofilms on Au-bearing mineral- and Au-particle surfaces drive Au dispersion and reconcentration, thereby (trans)forming the particles. However, it… read more here.
Keywords: cycling gold; arctic finland; biogeochemical cycling; gold ... See more keywords
Facile fabrication of gold particles decorated silk-on-silk nanocapsules
Sign Up to like & getrecommendations! Published in 2017 at "Materials Letters"
DOI: 10.1016/j.matlet.2016.08.155
Abstract: Abstract Both protein capsules and gold nanoparticles have attracted considerable attention in drug delivery systems. In this study, silk fibroin nanocapsules were fabricated by silk-on-silk layer-by-layer (LbL) assembly onto poly[lactic- co -(glycolic acid)] (PLGA) sacrificial… read more here.
Keywords: particles decorated; silk; silk silk; gold particles ... See more keywords
Stability of gold particles in NaY-type zeolites: Promotional effects of co-exchanged metal cations
Sign Up to like & getrecommendations! Published in 2017 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2016.11.034
Abstract: Abstract On Au/NaY a very high degree of dispersion is achieved, but gold particles migrate and then agglomerate when reduction occurs. This deterioration is slowed or prevented by c0-exchanging various cations into the zeolite, including… read more here.
Keywords: particles nay; type zeolites; nay type; stability gold ... See more keywords
Low temperature recrystallisation of alluvial gold in paleoplacer deposits
Sign Up to like & getrecommendations! Published in 2017 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2017.04.020
Abstract: Abstract Detrital gold particles in paleoplacer deposits develop recrystallised rims, with associated expulsion of Ag, leading to the formation of Ag-poor rims which have been recognised in most placer gold particles around the world. Recrystallisation… read more here.
Keywords: low temperature; paleoplacer deposits; temperature recrystallisation; gold ... See more keywords
Biogeochemical gold cycling selects metal-resistant bacteria that promote gold particle transformation.
Sign Up to like & getrecommendations! Published in 2019 at "FEMS microbiology ecology"
DOI: 10.1093/femsec/fiz078
Abstract: Bacteria catalyze the dissolution and re-precipitation of gold, thereby driving the biogeochemical cycle of gold. Dissolution of gold/silver and re-precipitation of gold transforms gold particles by increasing gold purity. While soluble gold complexes are highly… read more here.
Keywords: metal resistant; gold; gold cycling; cycling ... See more keywords
Nanostructured films based on branched gold particles
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Nanophotonics"
DOI: 10.1117/1.jnp.12.036001
Abstract: Abstract. Nanostructured films based on branched gold nanoparticles were obtained by self-assembly method. The possibility of controlling the film thickness in the range of 500 to 800 nm with preservation of their homogeneity and nanoparticle… read more here.
Keywords: branched gold; films based; nanostructured films; based branched ... See more keywords