Abstract
This paper reports the transformation of rhombic dodecahedral gold nanoparticles through two different pathways depending on the water content. The gold nanoparticles were prepared by reducing HAuCl 4 with N,N-dimethylforamide in the presence of poly(vinyl pyrrolidone) and water. Not only the concentration of PVP but also the water content has a critical role in determining the shape transformation of the gold nanocrystals. At low water content the rhombic dodecahedron is transformed into a rhombicuboctahedron to a truncated octahedron and then to an octahedron, while at higher water content the rhombic dodecahedron is transformed into a rhombicuboctahedron and then to a cube or a truncated cube and then to a cuboctahedron and to a truncated octahedron. In addition, we demonstrated cell imaging by using the truncated octahedral, rhombic dodecahedral and octahedral gold nanoparticles as a contrast agent.
Original language | English |
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Pages (from-to) | 116-121 |
Number of pages | 6 |
Journal | CrystEngComm |
Volume | 12 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2010 |
Externally published | Yes |
ASJC Scopus subject areas
- General Chemistry
- General Materials Science
- Condensed Matter Physics