Organized thiol functional groups in mesoporous core shell colloids

The co-condensation in situ of tetraethoxysilane (TEOS) and mercaptopropyltrimethoxysilane (MPTMS) using cetyltrimethylammonium bromide (CTAB) as a template results in the synthesis of multilayered mesoporous structured SiO 2 colloids with onion-like chemical environments. Thiol groups were anchored...

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Autores principales:	Marchena, M.H., Granada, M., Bordoni, A.V., Joselevich, M., Troiani, H., Williams, F.J., Wolosiuk, A.
Formato:	JOUR
Materias:	Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Tetraethoxysilanes Thiol functional groups Thiol groups Colloid chemistry Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00224596_v187_n_p97_Marchena
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00224596_v187_n_p97_Marchena
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spelling	todo:paper_00224596_v187_n_p97_Marchena2023-10-03T14:32:56Z Organized thiol functional groups in mesoporous core shell colloids Marchena, M.H. Granada, M. Bordoni, A.V. Joselevich, M. Troiani, H. Williams, F.J. Wolosiuk, A. Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Templated materials Tetraethoxysilanes Thiol functional groups Thiol groups Thiols Colloid chemistry Colloids Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification The co-condensation in situ of tetraethoxysilane (TEOS) and mercaptopropyltrimethoxysilane (MPTMS) using cetyltrimethylammonium bromide (CTAB) as a template results in the synthesis of multilayered mesoporous structured SiO 2 colloids with onion-like chemical environments. Thiol groups were anchored to an inner selected SiO 2 porous layer in a bilayered core shell particle producing different chemical regions inside the colloidal layered structure. X-Ray Photoelectron Spectroscopy (XPS) shows a preferential anchoring of the SH groups in the double layer shell system, while porosimetry and simple chemical modifications confirm that pores are accessible. We can envision the synthesis of interesting colloidal objects with defined chemical environments with highly controlled properties. © 2012 Elsevier Inc. © 2012 Elsevier Inc. All rights reserved. Fil:Bordoni, A.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Joselevich, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Williams, F.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00224596_v187_n_p97_Marchena
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Templated materials Tetraethoxysilanes Thiol functional groups Thiol groups Thiols Colloid chemistry Colloids Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification
spellingShingle	Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Templated materials Tetraethoxysilanes Thiol functional groups Thiol groups Thiols Colloid chemistry Colloids Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification Marchena, M.H. Granada, M. Bordoni, A.V. Joselevich, M. Troiani, H. Williams, F.J. Wolosiuk, A. Organized thiol functional groups in mesoporous core shell colloids
topic_facet	Colloids Coreshell Mesoporous silica Templated materials Thiols Cetyltrimethylammonium bromide Chemical environment Co-condensation Controlled properties Core shell particles Core-shell Double layers In-situ Layered Structures Mercaptopropyltrimethoxysilane Mesoporous Mesoporous Silica Multi-layered Porosimetry Porous layers SH groups Templated materials Tetraethoxysilanes Thiol functional groups Thiol groups Thiols Colloid chemistry Colloids Functional groups Silicon compounds X ray photoelectron spectroscopy Chemical modification
description	The co-condensation in situ of tetraethoxysilane (TEOS) and mercaptopropyltrimethoxysilane (MPTMS) using cetyltrimethylammonium bromide (CTAB) as a template results in the synthesis of multilayered mesoporous structured SiO 2 colloids with onion-like chemical environments. Thiol groups were anchored to an inner selected SiO 2 porous layer in a bilayered core shell particle producing different chemical regions inside the colloidal layered structure. X-Ray Photoelectron Spectroscopy (XPS) shows a preferential anchoring of the SH groups in the double layer shell system, while porosimetry and simple chemical modifications confirm that pores are accessible. We can envision the synthesis of interesting colloidal objects with defined chemical environments with highly controlled properties. © 2012 Elsevier Inc. © 2012 Elsevier Inc. All rights reserved.
format	JOUR
author	Marchena, M.H. Granada, M. Bordoni, A.V. Joselevich, M. Troiani, H. Williams, F.J. Wolosiuk, A.
author_facet	Marchena, M.H. Granada, M. Bordoni, A.V. Joselevich, M. Troiani, H. Williams, F.J. Wolosiuk, A.
author_sort	Marchena, M.H.
title	Organized thiol functional groups in mesoporous core shell colloids
title_short	Organized thiol functional groups in mesoporous core shell colloids
title_full	Organized thiol functional groups in mesoporous core shell colloids
title_fullStr	Organized thiol functional groups in mesoporous core shell colloids
title_full_unstemmed	Organized thiol functional groups in mesoporous core shell colloids
title_sort	organized thiol functional groups in mesoporous core shell colloids
url	http://hdl.handle.net/20.500.12110/paper_00224596_v187_n_p97_Marchena
work_keys_str_mv	AT marchenamh organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids AT granadam organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids AT bordoniav organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids AT joselevichm organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids AT troianih organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids AT williamsfj organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids AT wolosiuka organizedthiolfunctionalgroupsinmesoporouscoreshellcolloids
_version_	1807323878196772864

Organized thiol functional groups in mesoporous core shell colloids

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