Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties

Autores
Romero, Juan José; Wegmann, Marc; Rodriguez, Hernan Bernardo; Lillo, Rolando Cristian Rodrigo; Rubert, Aldo Alberto; Klein, Stefanie; Kotler, Monica Lidia; Kryschi, Carola; Gonzalez, Monica Cristina
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Iron-containing silicon nanoparticles were synthesized in an attempt to understand the effect of iron on the silicon nanoparticle (SiNP) photoluminescence and singlet-oxygen generation capacity. A wet chemical oxidation procedure of the sodium silicide precursor, obtained from the thermal treatment of a mixture of sodium, silicon, and an iron(III) organic salt under anaerobic conditions, was employed. Surface-oxidized and propylamine-terminated SiNPs were characterized using high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, time-resolved and steady-state photoluminescence, and time-correlated fluorescence anisotropy. On the basis of differences in the morphology, crystal structure, density, and photoluminescence spectrum, two distinct types of SiNPs were identified in a given synthesis batch: iron-free and iron-containing SiNPs. The results show that iron is inhomogeneously incorporated in the SiNPs leading to an efficient photoluminescence quenching. Emission arrives mainly from 2 nm size iron-free SiNPs. The nanoparticles were shown to generate singlet oxygen (1O2) upon 355 nm irradiation, though they were able to quench 1O2. Analysis of cytotoxicity using MTT assay on rat glioma C6 cells showed a strong dependence on the nature of the surface groups, as 100 μg/mL of propylamine-terminated iron-containing SiNPs leads to 85% decrease in cell viability while equal amounts of surface oxidized particles induced a 35% of cell death.
Fil: Romero, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Wegmann, Marc. Friederich-Alexander University of Erlangen-Nuremberg; Alemania
Fil: Rodriguez, Hernan Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Lillo, Rolando Cristian Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Rubert, Aldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Klein, Stefanie. Friederich-Alexander University of Erlangen-Nuremberg; Alemania
Fil: Kotler, Monica Lidia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Kryschi, Carola. Friederich-Alexander University of Erlangen-Nuremberg; Alemania
Fil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Materia
IRON
QUENCHING
OPTICAL
PROPERTIES
SURFACE
CHEMISTRY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5465
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles PropertiesRomero, Juan JoséWegmann, MarcRodriguez, Hernan BernardoLillo, Rolando Cristian RodrigoRubert, Aldo AlbertoKlein, StefanieKotler, Monica LidiaKryschi, CarolaGonzalez, Monica CristinaIRONQUENCHINGOPTICALPROPERTIESSURFACECHEMISTRYhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Iron-containing silicon nanoparticles were synthesized in an attempt to understand the effect of iron on the silicon nanoparticle (SiNP) photoluminescence and singlet-oxygen generation capacity. A wet chemical oxidation procedure of the sodium silicide precursor, obtained from the thermal treatment of a mixture of sodium, silicon, and an iron(III) organic salt under anaerobic conditions, was employed. Surface-oxidized and propylamine-terminated SiNPs were characterized using high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, time-resolved and steady-state photoluminescence, and time-correlated fluorescence anisotropy. On the basis of differences in the morphology, crystal structure, density, and photoluminescence spectrum, two distinct types of SiNPs were identified in a given synthesis batch: iron-free and iron-containing SiNPs. The results show that iron is inhomogeneously incorporated in the SiNPs leading to an efficient photoluminescence quenching. Emission arrives mainly from 2 nm size iron-free SiNPs. The nanoparticles were shown to generate singlet oxygen (1O2) upon 355 nm irradiation, though they were able to quench 1O2. Analysis of cytotoxicity using MTT assay on rat glioma C6 cells showed a strong dependence on the nature of the surface groups, as 100 μg/mL of propylamine-terminated iron-containing SiNPs leads to 85% decrease in cell viability while equal amounts of surface oxidized particles induced a 35% of cell death.Fil: Romero, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Wegmann, Marc. Friederich-Alexander University of Erlangen-Nuremberg; AlemaniaFil: Rodriguez, Hernan Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Lillo, Rolando Cristian Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Rubert, Aldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Klein, Stefanie. Friederich-Alexander University of Erlangen-Nuremberg; AlemaniaFil: Kotler, Monica Lidia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Kryschi, Carola. Friederich-Alexander University of Erlangen-Nuremberg; AlemaniaFil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaAmerican Chemical Society2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5465Romero, Juan José; Wegmann, Marc; Rodriguez, Hernan Bernardo; Lillo, Rolando Cristian Rodrigo; Rubert, Aldo Alberto; et al.; Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties; American Chemical Society; Journal of Physical Chemistry C; 119; 10; 3-2015; 5739-57461932-7455enginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/pdf/10.1021/acs.jpcc.5b00172info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.jpcc.5b00172info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:22:18Zoai:ri.conicet.gov.ar:11336/5465instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:22:18.525CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties
title Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties
spellingShingle Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties
Romero, Juan José
IRON
QUENCHING
OPTICAL
PROPERTIES
SURFACE
CHEMISTRY
title_short Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties
title_full Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties
title_fullStr Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties
title_full_unstemmed Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties
title_sort Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties
dc.creator.none.fl_str_mv Romero, Juan José
Wegmann, Marc
Rodriguez, Hernan Bernardo
Lillo, Rolando Cristian Rodrigo
Rubert, Aldo Alberto
Klein, Stefanie
Kotler, Monica Lidia
Kryschi, Carola
Gonzalez, Monica Cristina
author Romero, Juan José
author_facet Romero, Juan José
Wegmann, Marc
Rodriguez, Hernan Bernardo
Lillo, Rolando Cristian Rodrigo
Rubert, Aldo Alberto
Klein, Stefanie
Kotler, Monica Lidia
Kryschi, Carola
Gonzalez, Monica Cristina
author_role author
author2 Wegmann, Marc
Rodriguez, Hernan Bernardo
Lillo, Rolando Cristian Rodrigo
Rubert, Aldo Alberto
Klein, Stefanie
Kotler, Monica Lidia
Kryschi, Carola
Gonzalez, Monica Cristina
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv IRON
QUENCHING
OPTICAL
PROPERTIES
SURFACE
CHEMISTRY
topic IRON
QUENCHING
OPTICAL
PROPERTIES
SURFACE
CHEMISTRY
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Iron-containing silicon nanoparticles were synthesized in an attempt to understand the effect of iron on the silicon nanoparticle (SiNP) photoluminescence and singlet-oxygen generation capacity. A wet chemical oxidation procedure of the sodium silicide precursor, obtained from the thermal treatment of a mixture of sodium, silicon, and an iron(III) organic salt under anaerobic conditions, was employed. Surface-oxidized and propylamine-terminated SiNPs were characterized using high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, time-resolved and steady-state photoluminescence, and time-correlated fluorescence anisotropy. On the basis of differences in the morphology, crystal structure, density, and photoluminescence spectrum, two distinct types of SiNPs were identified in a given synthesis batch: iron-free and iron-containing SiNPs. The results show that iron is inhomogeneously incorporated in the SiNPs leading to an efficient photoluminescence quenching. Emission arrives mainly from 2 nm size iron-free SiNPs. The nanoparticles were shown to generate singlet oxygen (1O2) upon 355 nm irradiation, though they were able to quench 1O2. Analysis of cytotoxicity using MTT assay on rat glioma C6 cells showed a strong dependence on the nature of the surface groups, as 100 μg/mL of propylamine-terminated iron-containing SiNPs leads to 85% decrease in cell viability while equal amounts of surface oxidized particles induced a 35% of cell death.
Fil: Romero, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Wegmann, Marc. Friederich-Alexander University of Erlangen-Nuremberg; Alemania
Fil: Rodriguez, Hernan Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Lillo, Rolando Cristian Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Rubert, Aldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Klein, Stefanie. Friederich-Alexander University of Erlangen-Nuremberg; Alemania
Fil: Kotler, Monica Lidia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; Argentina
Fil: Kryschi, Carola. Friederich-Alexander University of Erlangen-Nuremberg; Alemania
Fil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
description Iron-containing silicon nanoparticles were synthesized in an attempt to understand the effect of iron on the silicon nanoparticle (SiNP) photoluminescence and singlet-oxygen generation capacity. A wet chemical oxidation procedure of the sodium silicide precursor, obtained from the thermal treatment of a mixture of sodium, silicon, and an iron(III) organic salt under anaerobic conditions, was employed. Surface-oxidized and propylamine-terminated SiNPs were characterized using high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, time-resolved and steady-state photoluminescence, and time-correlated fluorescence anisotropy. On the basis of differences in the morphology, crystal structure, density, and photoluminescence spectrum, two distinct types of SiNPs were identified in a given synthesis batch: iron-free and iron-containing SiNPs. The results show that iron is inhomogeneously incorporated in the SiNPs leading to an efficient photoluminescence quenching. Emission arrives mainly from 2 nm size iron-free SiNPs. The nanoparticles were shown to generate singlet oxygen (1O2) upon 355 nm irradiation, though they were able to quench 1O2. Analysis of cytotoxicity using MTT assay on rat glioma C6 cells showed a strong dependence on the nature of the surface groups, as 100 μg/mL of propylamine-terminated iron-containing SiNPs leads to 85% decrease in cell viability while equal amounts of surface oxidized particles induced a 35% of cell death.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/5465
Romero, Juan José; Wegmann, Marc; Rodriguez, Hernan Bernardo; Lillo, Rolando Cristian Rodrigo; Rubert, Aldo Alberto; et al.; Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties; American Chemical Society; Journal of Physical Chemistry C; 119; 10; 3-2015; 5739-5746
1932-7455
url http://hdl.handle.net/11336/5465
identifier_str_mv Romero, Juan José; Wegmann, Marc; Rodriguez, Hernan Bernardo; Lillo, Rolando Cristian Rodrigo; Rubert, Aldo Alberto; et al.; Impact of Iron Incorporation on 2-4 nm Size Silicon Nanoparticles Properties; American Chemical Society; Journal of Physical Chemistry C; 119; 10; 3-2015; 5739-5746
1932-7455
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/pdf/10.1021/acs.jpcc.5b00172
info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.jpcc.5b00172
info:eu-repo/semantics/altIdentifier/doi/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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