Regensburg 2019 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 20: Poster session II

MM 20.15: Poster

Dienstag, 2. April 2019, 18:30–20:00, Poster C

Containment free in-situ analysis of gold nanorod growth using disposable 3D-printed experimental chambers — •Tobias Zech, Tilo Schmutzler, and Tobias Unruh — LKS, Friedrich-Alexander-Universität Erlangen-Nürnberg

Despite gold nanorods being used in various scientific fields, there still are some problems. Bad reproducibility, insufficient yield and time-consuming functionalization protocols are some of the burdens that must be overcome. More systematic in-situ analyses using scattering techniques like small angle neutron and x-ray scattering would go a long way to get further insight into the anisotropic growth of gold nanorods. However, the chemical procedure always requires a clean and metal-ion free environment, to successfully produce gold nanorods. Also, the synthesis differs to a slight degree from synthesis to synthesis, which makes it hard to compare experiments with seemingly identical synthetic parameters on separately performed experiments. Therefore, we designed a cheap, compact, expendable experimental chamber using 3D-printing. This way, we were able to skip the possibly erroneous cleaning procedure and make systematic experiments over various synthetic parameters. 3D printing also gives us the flexibility of using different techniques like UV-Vis spectroscopy in parallel, to draw even more information out of our in-situ small angle scattering experiment. The chamber can be modified easily to include additional techniques like Raman and FTIR spectroscopy on the same sample volume in a containment free environment.