Enchantment of the synthetic control over gold silver layered nano cubes and their functionalization as plasmonic sensing tools.
Research Mentor(s)
Ying Bao
Description
Novel nanoparticles are used as sensors and detection tools due to their unique plasmonic properties. Plasmonic properties are heightened electronic effects observed when the atoms of metallic nano materials are excited by light. These electronic effects generate towards the materials surface and can then be easily measured and analyzed. Control of the nano materials composition, size and shape allows for precise control over the wavelengths needed to excite the material. This control makes nanomaterials and their plasmonic properties extremely versatile. Silver nanocubes (AgNCs) are of particular interest due their heighten sensitivity and tunable properties. However, AgNcs are susceptible to oxidation and degradation overtime limiting their use. To improve AgNCs and solve this issue, Ag NCs are coated in a layer of gold resulting in gold-silver nanocubes (AuAgNCs). Gold is chosen due to its ability to improve the resistance to oxidation and overall stability while not hindering the plasmonic effects of the original AgNcs. This study focused on understanding the reaction that takes place as Au is introduced to the AgNCs. A deeper understanding of these processes can allow for more synthetic control over the AuAgNCs furthering their versatility, applications and implementations as detection or sensing tools.
Document Type
Event
Start Date
May 2022
End Date
May 2022
Location
Carver Gym (Bellingham, Wash.)
Department
CSE - Chemistry
Genre/Form
student projects; posters
Type
Image
Rights
Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.
Language
English
Format
application/pdf
Enchantment of the synthetic control over gold silver layered nano cubes and their functionalization as plasmonic sensing tools.
Carver Gym (Bellingham, Wash.)
Novel nanoparticles are used as sensors and detection tools due to their unique plasmonic properties. Plasmonic properties are heightened electronic effects observed when the atoms of metallic nano materials are excited by light. These electronic effects generate towards the materials surface and can then be easily measured and analyzed. Control of the nano materials composition, size and shape allows for precise control over the wavelengths needed to excite the material. This control makes nanomaterials and their plasmonic properties extremely versatile. Silver nanocubes (AgNCs) are of particular interest due their heighten sensitivity and tunable properties. However, AgNcs are susceptible to oxidation and degradation overtime limiting their use. To improve AgNCs and solve this issue, Ag NCs are coated in a layer of gold resulting in gold-silver nanocubes (AuAgNCs). Gold is chosen due to its ability to improve the resistance to oxidation and overall stability while not hindering the plasmonic effects of the original AgNcs. This study focused on understanding the reaction that takes place as Au is introduced to the AgNCs. A deeper understanding of these processes can allow for more synthetic control over the AuAgNCs furthering their versatility, applications and implementations as detection or sensing tools.