Photo-induced electric polarizability of Fe(3)O(4) nanoparticles in weak optical fields

Using a developed co-precipitation method, we synthesized spherical Fe(3)O(4) nanoparticles with a wide nonlinear absorption band of visible radiation. Optical properties of the synthesized nanoparticles dispersed in an optically transparent copolymer of methyl methacrylate with styrene were studied...

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Detalles Bibliográficos
Autores principales: Milichko, Valentin A, Nechaev, Anton I, Valtsifer, Viktor A, Strelnikov, Vladimir N, Kulchin, Yurii N, Dzyuba, Vladimir P
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2013
Materias:
Nano Commentary
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3717034/
https://www.ncbi.nlm.nih.gov/pubmed/23837726
http://dx.doi.org/10.1186/1556-276X-8-317
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author Milichko, Valentin A
Nechaev, Anton I
Valtsifer, Viktor A
Strelnikov, Vladimir N
Kulchin, Yurii N
Dzyuba, Vladimir P
author_facet Milichko, Valentin A
Nechaev, Anton I
Valtsifer, Viktor A
Strelnikov, Vladimir N
Kulchin, Yurii N
Dzyuba, Vladimir P
author_sort Milichko, Valentin A
collection PubMed
description Using a developed co-precipitation method, we synthesized spherical Fe(3)O(4) nanoparticles with a wide nonlinear absorption band of visible radiation. Optical properties of the synthesized nanoparticles dispersed in an optically transparent copolymer of methyl methacrylate with styrene were studied by optical spectroscopy and z-scan techniques. We found that the electric polarizability of Fe(3)O(4) nanoparticles is altered by low-intensity visible radiation (I ≤ 0.2 kW/cm(2); λ = 442 and 561 nm) and reaches a value of 10(7) Å(3). The change in polarizability is induced by the intraband phototransition of charge carriers. This optical effect may be employed to improve the drug uptake properties of Fe(3)O(4) nanoparticles. PACS: 33.15.Kr 78.67.Bf 42.70.Nq
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spelling pubmed-37170342013-07-22 Photo-induced electric polarizability of Fe(3)O(4) nanoparticles in weak optical fields Milichko, Valentin A Nechaev, Anton I Valtsifer, Viktor A Strelnikov, Vladimir N Kulchin, Yurii N Dzyuba, Vladimir P Nanoscale Res Lett Nano Commentary Using a developed co-precipitation method, we synthesized spherical Fe(3)O(4) nanoparticles with a wide nonlinear absorption band of visible radiation. Optical properties of the synthesized nanoparticles dispersed in an optically transparent copolymer of methyl methacrylate with styrene were studied by optical spectroscopy and z-scan techniques. We found that the electric polarizability of Fe(3)O(4) nanoparticles is altered by low-intensity visible radiation (I ≤ 0.2 kW/cm(2); λ = 442 and 561 nm) and reaches a value of 10(7) Å(3). The change in polarizability is induced by the intraband phototransition of charge carriers. This optical effect may be employed to improve the drug uptake properties of Fe(3)O(4) nanoparticles. PACS: 33.15.Kr 78.67.Bf 42.70.Nq Springer 2013-07-09 /pmc/articles/PMC3717034/ /pubmed/23837726 http://dx.doi.org/10.1186/1556-276X-8-317 Text en Copyright ©2013 Milichko et al.; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Commentary
Milichko, Valentin A
Nechaev, Anton I
Valtsifer, Viktor A
Strelnikov, Vladimir N
Kulchin, Yurii N
Dzyuba, Vladimir P
Photo-induced electric polarizability of Fe(3)O(4) nanoparticles in weak optical fields
title Photo-induced electric polarizability of Fe(3)O(4) nanoparticles in weak optical fields
title_full Photo-induced electric polarizability of Fe(3)O(4) nanoparticles in weak optical fields
title_fullStr Photo-induced electric polarizability of Fe(3)O(4) nanoparticles in weak optical fields
title_full_unstemmed Photo-induced electric polarizability of Fe(3)O(4) nanoparticles in weak optical fields
title_short Photo-induced electric polarizability of Fe(3)O(4) nanoparticles in weak optical fields
title_sort photo-induced electric polarizability of fe(3)o(4) nanoparticles in weak optical fields
topic Nano Commentary
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3717034/
https://www.ncbi.nlm.nih.gov/pubmed/23837726
http://dx.doi.org/10.1186/1556-276X-8-317
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