Invitación a Seminario Dr. Rudy Martín-Trasanco

noviembre 26, 2015 by
Categoría: Sin categoría 

Seminarios del Departamento de Ciencias Químicas 

Invita a la comunidad universitaria a la charla titulada

Crosslinked polymer of b-cyclodextrin-epichlorohydrin as capping agent for nanoparticles containing metals

por

 

Dr. Rudy Martín-Trasanco

Centro de Nanociencias Aplicadas (CENAP), Doctorado de Fisicoquímica Molecular, UNAB 

ruquim@gmail.com

Resumen

Cyclodextrins are a family of cyclic oligosaccharide compounds with a torus shape hydrophobic cavity capable to form inclusion complexes with a great variety of guests. The crosslinking ofbCD with epiclorohydrin in a basic media lead to the formation of a highly water soluble b-cyclodextrin-epichlorohydrin polymer (bCDP).  In this work the bCDP polymer was used as capping agent in the synthesis of water soluble gold (AuNPs) and silver (AgNPs) nanoparticles as well as in the preparation of cadmium telluride quantum dots (CdTeQDs) in aqueous media. In all cases, the bCD polymer conferred a high water solubility and stability to the nanoparticles, even at high concentrations permitting their precipitation and further redispersion in water, a process that did not affected their optical properties.

Fecha:  Miércoles  25 de noviembre de 2015

Hora:   11:30 am

Lugar:  Sala 301-R2 en República 252, Santiago

ru

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