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| Hauptseite > Publikationsdatenbank > Synthesis and biological characterization of alloyed silver–platinum nanoparticles: from compact core–shell nanoparticles to hollow nanoalloys > print |
| Hauptseite > Publikationsdatenbank > Synthesis and biological characterization of alloyed silver–platinum nanoparticles: from compact core–shell nanoparticles to hollow nanoalloys > print |
| 001 | 858607 | ||
| 005 | 20240610120349.0 | ||
| 024 | 7 | _ | |a 10.1039/C8RA06461J |2 doi |
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| 100 | 1 | _ | |a Grasmik, Viktoria |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Synthesis and biological characterization of alloyed silver–platinum nanoparticles: from compact core–shell nanoparticles to hollow nanoalloys |
| 260 | _ | _ | |a London |c 2018 |b RSC Publishing |
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| 520 | _ | _ | |a Bimetallic nanoparticles consisting of silver and platinum were prepared by a modified seeded-growth process in water in the full composition range in steps of 10 mol%. The particles had diameters between 15–25 nm as determined by disc centrifugal sedimentation (DCS) and transmission electron microscopy (TEM). Whereas particles with high platinum content were mostly spherical with a solid silver core/platinum shell structure, mostly hollow alloyed nanoparticles were observed with increasing silver content. The internal structure and the elemental distribution within the particles were elucidated by high-resolution transmission electron microscopy (HRTEM) in combination with energy-dispersive X-ray spectroscopy (EDX). The particles were cytotoxic for human mesenchymal stem cells (hMSC) above 50 mol% silver. This was explained by dissolution experiments where silver was only released at and above 50 mol% silver. In contrast, platinum-rich particles (less than 50 mol% silver) did not release any silver ions. This indicates that the presence of platinum inhibits the oxidative dissolution of silver. |
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| 700 | 1 | _ | |a Köller, Manfred |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Sengstock, Christina |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Epple, Matthias |0 0000-0002-1641-7068 |b 6 |e Corresponding author |
| 773 | _ | _ | |a 10.1039/C8RA06461J |g Vol. 8, no. 67, p. 38582 - 38590 |0 PERI:(DE-600)2623224-8 |n 67 |p 38582 - 38590 |t RSC Advances |v 8 |y 2018 |x 2046-2069 |
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