Polyampholyte-mediated synthesis of anisotropic gold nanoplatelets
- This paper focused on the synthesis of triangular nanoplatelets in the presence of a tubular network structure. The tubular network structure is formed by adding a strongly alternating polyampholyte, i.e., PalPhBisCarb, to a mixed vesicle system with a negatively charged bilayer containing phosphatidylcholin and AOT. Using the tubular network as a reducing agent in a one-step procedure, triangular and hexagonal nanoplatelets are formed. One can show that the nanoplatelet yield is enhanced by increasing the temperature and decreasing the reaction time. The platelet edge length can be decreased by heating the system up to 100 A degrees C. Due to specific interactions between PalPhBisCarb and the AOT/phospholipid bilayer, stacking and welding effects lead to the formation of ordered platelet structures. The reaction pathway to flat gold nanotriangles is discussed with regard to the twin plane growth model of gold nanoplates.
| Author details: | Nicole Schulze, Claudia Christina PrietzelGND, Joachim KoetzORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1007/s00396-016-3890-y |
| ISSN: | 0303-402X |
| ISSN: | 1435-1536 |
| Title of parent work (English): | Colloid and polymer science : official journal of the Kolloid-Gesellschaft |
| Publisher: | Springer |
| Place of publishing: | New York |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2016 |
| Publication year: | 2016 |
| Release date: | 2020/03/22 |
| Tag: | Anisotropic gold nanoplatelets; Nanocrystal growth; Nanotriangle stacking and welding; Polyampholytes; Tubular network structure |
| Volume: | 294 |
| Number of pages: | 8 |
| First page: | 1297 |
| Last Page: | 1304 |
| Funding institution: | Polymer Science Program and the German Research Foundation [INST 336/64-1] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
| Peer review: | Referiert |
