Seeded-Growth Experiment Demonstrating Size- and Shape-Dependence on Gold Nanoparticle-Light Interactions.

Autor: Vinnacombe-Willson GA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States.; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States., Chiang N; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States.; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States., Weiss PS; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States.; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.; Materials Science and Engineering Department, University of California, Los Angeles, Los Angeles, California 90095, United States., Tolbert SH; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States.; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.; Materials Science and Engineering Department, University of California, Los Angeles, Los Angeles, California 90095, United States., Scarabelli L; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States.; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States.; Institute of Materials Science of Barcelona (ICMAB-CSIC); UAB Campus, Bellaterra 08193, Spain.
Jazyk: angličtina
Zdroj: Journal of chemical education [J Chem Educ] 2021 Feb 09; Vol. 98 (2), pp. 546-552. Date of Electronic Publication: 2020 Dec 23.
DOI: 10.1021/acs.jchemed.0c01150
Abstrakt: Gold nanoparticles are exciting materials in nanotechnology and nanoscience research and are being applied across a wide range of fields including imaging, chemical sensing, energy storage, and cancer therapies. In this experiment, students will synthesize two sizes of gold nanospheres (~20 nm and ~100 nm) and will create gold nanostars utilizing a seed-mediated growth synthetic approach. Students will compare how each sample interacts differently with light (absorption and scattering) based on the nanoparticles' size and shape. This experiment is ideal for high-school and early undergraduate students since all reagents are non-toxic, affordable, and no special characterization equipment is required.
Databáze: MEDLINE
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