Plasmon properties of multilayer albumin/gold hybrid nanoparticles

Hybrid nanoparticles are mainly based on inorganic (metal, semiconductors) and organic (proteins, polymers) compounds. The inorganic compounds are metallic nanostructures with unique features such as localized surface plasmon resonance (LSPR) bands in the UV–visible-near IR spectral range. The LSPR...

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Detalles Bibliográficos
Autores principales: Flores, Constanza Yanel, Mendoza Herrera, Luis Joaquín, Achilli, Estefanía Edith, Schinca, Daniel Carlos, Grasselli, Mariano
Formato: Articulo
Lenguaje:Español
Publicado: 2019
Materias:
Química
Surface plasmon resonance
Plasmon
Nanoparticle
Materials science
Coating
Spectroscopy
Refractive index
Chemical engineering
Polymer
Metal
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124548
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124548
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Química
Surface plasmon resonance
Plasmon
Nanoparticle
Materials science
Coating
Spectroscopy
Refractive index
Chemical engineering
Polymer
Metal
spellingShingle Química
Surface plasmon resonance
Plasmon
Nanoparticle
Materials science
Coating
Spectroscopy
Refractive index
Chemical engineering
Polymer
Metal
Flores, Constanza Yanel
Mendoza Herrera, Luis Joaquín
Achilli, Estefanía Edith
Schinca, Daniel Carlos
Grasselli, Mariano
Plasmon properties of multilayer albumin/gold hybrid nanoparticles
topic_facet Química
Surface plasmon resonance
Plasmon
Nanoparticle
Materials science
Coating
Spectroscopy
Refractive index
Chemical engineering
Polymer
Metal
description Hybrid nanoparticles are mainly based on inorganic (metal, semiconductors) and organic (proteins, polymers) compounds. The inorganic compounds are metallic nanostructures with unique features such as localized surface plasmon resonance (LSPR) bands in the UV–visible-near IR spectral range. The LSPR frequency is extremely sensitive to small changes in the physicochemical environment surrounding NPs and is dependent on NP shape and size. Recently, we reported a novel preparation method of hybrid nanoparticles based on an Albumin multilayer coating of AuNPs, stabilized by radiation-induced crosslinking processes. With this method, we obtained core/shell nanoparticles composed by Au and albumins. The aim of this paper is the description of the plasmon properties of AuNPs and other core/shell gold/protein NPs prepared. UV–vis spectra were used to detect changes of the plasmon extinction of hybrid nanoparticles, in accordance to the Mie Theory. DLS and TEM measures were used to correlate the results obtained. UV–vis spectroscopy proved to be key to characterize protein layer through two parameters: thickness and refractive index. In conclusion, UV–vis spectroscopy can be a very useful quality control methodology to prepare hybrid Au/protein NPs.
format Articulo
Articulo
author Flores, Constanza Yanel
Mendoza Herrera, Luis Joaquín
Achilli, Estefanía Edith
Schinca, Daniel Carlos
Grasselli, Mariano
author_facet Flores, Constanza Yanel
Mendoza Herrera, Luis Joaquín
Achilli, Estefanía Edith
Schinca, Daniel Carlos
Grasselli, Mariano
author_sort Flores, Constanza Yanel
title Plasmon properties of multilayer albumin/gold hybrid nanoparticles
title_short Plasmon properties of multilayer albumin/gold hybrid nanoparticles
title_full Plasmon properties of multilayer albumin/gold hybrid nanoparticles
title_fullStr Plasmon properties of multilayer albumin/gold hybrid nanoparticles
title_full_unstemmed Plasmon properties of multilayer albumin/gold hybrid nanoparticles
title_sort plasmon properties of multilayer albumin/gold hybrid nanoparticles
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/124548
work_keys_str_mv AT floresconstanzayanel plasmonpropertiesofmultilayeralbumingoldhybridnanoparticles
AT mendozaherreraluisjoaquin plasmonpropertiesofmultilayeralbumingoldhybridnanoparticles
AT achilliestefaniaedith plasmonpropertiesofmultilayeralbumingoldhybridnanoparticles
AT schincadanielcarlos plasmonpropertiesofmultilayeralbumingoldhybridnanoparticles
AT grassellimariano plasmonpropertiesofmultilayeralbumingoldhybridnanoparticles
bdutipo_str Repositorios
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