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

2020/12/23 by Gail A. Vinnacombe-Willson, Gail A. Vinnacombe‐Willson, Naihao Chiang +3 · 9 citations
Materials Science · Engineering · #Gold and Silver Nanoparticles Synthesis and Applications #Molecular Communication and Nanonetworks

paper · doi:10.1021/acs.jchemed.0c01150

Abstract

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.

Cited by

• Fabrication and evaluation of plasmonic nanopipets for near-field enhanced Raman spectroscopy
• Spherical Nucleic Acids: Integrating Nanotechnology Concepts into General Chemistry Curricula. [europepmc]
• Chiral nanocrystals grown from MoS 2 nanosheets enable photothermally modulated enantioselective release of antimicrobial drugs. [europepmc]
• Bubble-pen lithography: Fundamentals and applications: Nanoscience: Special Issue Dedicated to Professor Paul S. Weiss. [europepmc]
• Synthesis and Characterization of Superparamagnetic Iron Oxide Nanoparticles: A Series of Laboratory Experiments. [europepmc]
• Visualization of the High Surface-to-Volume Ratio of Nanomaterials and Its Consequences. [europepmc]
• Multifunctional gold nanoparticles for cancer theranostics. [europepmc]
• Medical importance and pharmacokinetics of gold nanoparticles in the human body. [europepmc]
• Fabrication and Evaluation of Plasmonic Nanopipettes for Near-Field Enhanced Raman Spectroscopy. [europepmc]

Related

• Effects of the Electronic Structure, Phase Transition, and Localized Dynamics of Atoms in the Formation of Tiny Particles of Gold
• Controlled synthesis of gold nano bipyramids
• Size distributions of gold nanoparticles in solution measured by single-particle mass photometry
• High-Yield In Situ Growth of Supported Gold Nanorods in Microfluidic Channels
• Determination of Size and Concentration of Gold Nanoparticles from UV−Vis Spectra