A turn-on fluorescent solid-sensor for Hg(II) detection

De la Cruz Guzmán, Mayela; Aguilar Aguilar, Angelica; Hernandez Adame, Luis; Bañuelos Frías, Alan; Medellin Rodriguez, Francisco J; Palestino, Gabriela

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dc.contributor	323022	es_ES
dc.coverage.spatial	Global	es_ES
dc.creator	De la Cruz Guzmán, Mayela
dc.creator	Aguilar Aguilar, Angelica
dc.creator	Hernandez Adame, Luis
dc.creator	Bañuelos Frías, Alan
dc.creator	Medellin Rodriguez, Francisco J
dc.creator	Palestino, Gabriela
dc.date.accessioned	2020-04-15T17:42:15Z
dc.date.available	2020-04-15T17:42:15Z
dc.date.issued	2014-08-26
dc.identifier	info:eu-repo/semantics/publishedVersion	es_ES
dc.identifier.issn	1556-276X	es_ES
dc.identifier.uri	http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/1673
dc.description	A rhodamine organosilane derivative (Rh-UTES) has been obtained by one-pot synthesis. The chemical structure of Rh-UTES was confirmed by nuclear magnetic resonance (NMR) and infrared (FTIR) techniques. To obtain an inorganic-organic hybrid sensor, Rh-UTES was covalently immobilized on a porous silicon microcavity (PSiMc) via triethoxysilane groups. The attachment of the organic derivative into PSiMc was confirmed by FTIR, specular reflectance, and scanning electron microscopy (SEM). The optical performance of Rh-UTES receptor for Hg2+ detection was investigated by fluorescent spectroscopy and microscopy. Upon the addition of increasing amounts of Hg2+ ions, a remarkable enhancement in emission intensity was produced in both systems. In the solid phase, an increase of integrated fluorescent emission of 0.12- and 0.15-fold after Hg2+ receptor coordination was observed. The light harvesting capability of PSiMc devices allowed obtaining an enhanced fluorescent emission after Rh-UTES immobilization (277-fold). The fluorescence microscopy of hybrid PSiMc sensor provided an optical qualitative test for Hg2+ detection.	es_ES
dc.description.abstract	A rhodamine organosilane derivative (Rh-UTES) has been obtained by one-pot synthesis. The chemical structure of Rh-UTES was confirmed by nuclear magnetic resonance (NMR) and infrared (FTIR) techniques. To obtain an inorganic-organic hybrid sensor, Rh-UTES was covalently immobilized on a porous silicon microcavity (PSiMc) via triethoxysilane groups. The attachment of the organic derivative into PSiMc was confirmed by FTIR, specular reflectance, and scanning electron microscopy (SEM). The optical performance of Rh-UTES receptor for Hg2+ detection was investigated by fluorescent spectroscopy and microscopy. Upon the addition of increasing amounts of Hg2+ ions, a remarkable enhancement in emission intensity was produced in both systems. In the solid phase, an increase of integrated fluorescent emission of 0.12- and 0.15-fold after Hg2+ receptor coordination was observed. The light harvesting capability of PSiMc devices allowed obtaining an enhanced fluorescent emission after Rh-UTES immobilization (277-fold). The fluorescence microscopy of hybrid PSiMc sensor provided an optical qualitative test for Hg2+ detection.	es_ES
dc.language.iso	eng	es_ES
dc.publisher	Springer	es_ES
dc.relation	https://link.springer.com/content/pdf/10.1186/1556-276X-9-431.pdf	es_ES
dc.relation.uri	generalPublic	es_ES
dc.rights	Atribución-NoComercial-CompartirIgual 3.0 Estados Unidos de América	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-sa/3.0/us/	*
dc.source	Nanoscale Research Letters, Vol. 9, No. 431, septiembre de 2014, pp. 1-9	es_ES
dc.subject.classification	INGENIERIA Y TECNOLOGIA [7]	es_ES
dc.subject.other	Chemosensor	es_ES
dc.subject.other	Porous silicon	es_ES
dc.subject.other	Rhodamine derivative	es_ES
dc.subject.other	Fluorescence	es_ES
dc.subject.other	Heavy metal	es_ES
dc.title	A turn-on fluorescent solid-sensor for Hg(II) detection	es_ES
dc.type	info:eu-repo/semantics/article	es_ES