<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dcterms="http://purl.org/dc/terms/">
<rdf:Description rdf:about="https://riquim.fq.edu.uy/items/show/6848">
    <dcterms:title><![CDATA[<strong>Novel Discrete and Imprinted Fluoride-Selective Sensors : Bridging the Gap from DMSO to Aqueous Samples</strong>]]></dcterms:title>
    <dcterms:subject><![CDATA[FLUORURO]]></dcterms:subject>
    <dcterms:subject><![CDATA[AGUA POTABLE]]></dcterms:subject>
    <dcterms:subject><![CDATA[BIBLIOGRAFIA NACIONAL QUIMICA]]></dcterms:subject>
    <dcterms:subject><![CDATA[2024]]></dcterms:subject>
    <dcterms:abstract><![CDATA[Fluoride in drinking water has beneficial or harmful health effects depending on its concentration. This highlights the need for new low-cost and portable sensors capable of in situ monitoring of F&minus; ions. Unfortunately, achieving high levels of water compatibility and fluoride specificity remains a challenge. Here, four new urea-based discrete sensors are prepared and characterized. The sensors containing anthracenyl- (5) and 9H-fluorenyl- (7) signaling units exhibit intense luminescent emissions in dimethyl sulfoxide, the former being particularly sensitive and selective to fluoride. In water, 5 displays a superior sensitivity (871 M&minus;1) and a detection limit (8 &mu;m) below international guidelines, albeit with cross-sensitivity to H2PO4&oline;. To enhance the performance, 5 and 7 are embedded into a fluoride-imprinted polymeric matrix to give solid-state sensors (5P and 7P, respectively). 5P shows good sensitivity (360 M&minus;1) and specificity in water. Besides, it has a low detection limit (35 &mu;m) and a response linear range (118&ndash;6300 &mu;m) encompassing the limit established by the Environmental Protection Agency (211 &mu;m). Furthermore, 5P also displays good reusability and adequate recovery values in real-sample testing (102 &plusmn; 2%), constituting the first example of a low-cost anion-imprinted polymeric probe tailored for the selective sensing of fluoride in aqueous samples.]]></dcterms:abstract>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?153a14c6db247331e65570aa180b886d5b96a92ab4ad43fe90c1e63d72b4b5d9ae6e54f4a751a2c5330486da71536f229af261b882d57e928628d47ec12c0895"><strong>Qui&ntilde;one, Delfina</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<strong>Romano, Giammarco M.</strong>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?2f2e59581473324400ee29ded741b9090cc25a893e73d02669ebfbc674c9e8b9b51bb30e2bca064dc7ebbd5c39aa3c844e86e507301e912aa1b0a5ae17423fa2"><strong>Faccio, Ricardo</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<strong>Savastano, Matteo</strong>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<strong>Bianchi, Antonio</strong>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<strong>Bencini, Andrea</strong>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?abe83e1d0ff0032077eebc59e242406dcee0534acdd3d7271bd4139b164fd4a3ececcd45a5348512bdab41575764ee4a52693aab84f5f508900b084e93dca1c0"><strong>Brovetto, Margarita</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?750e9b353a1a0eefb2ebafb09948ec8ad0aaf80f89b11beeaec5c09b63f96eaba9e18ada7bbd99aa41fb5465563fac0dc417bfd7ca15c0e1b30c90239c1b2ecb"><strong>Torres, Julia</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?5ad3267f4b4cb5190a6d9a3f5877923f528b6603e8a436c2005a31c5f35cd644629532a16ae958823cff6464fe03287baebd3b8724cc14f8d05da74957fe496d"><strong>Veiga, Nicol&aacute;s</strong></a>]]></dcterms:creator>
    <dcterms:source><![CDATA[<span data-sheets-formula-bar-text-style="font-size:13px;color:#000000;font-weight:normal;text-decoration:none;font-family:'Arial';font-style:normal;text-decoration-skip-ink:none;">Small, v. 20, n&ordm; 47, 2024. -- e2402696</span>]]></dcterms:source>
    <dcterms:publisher><![CDATA[Wiley]]></dcterms:publisher>
    <dcterms:date><![CDATA[2024]]></dcterms:date>
    <dcterms:rights><![CDATA[<div class="element-text">
<p><strong>Informaci&oacute;n sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislaci&oacute;n uruguaya protege el derecho</strong>&nbsp;de autor sobre toda creaci&oacute;n literaria, cient&iacute;fica o art&iacute;stica, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeci&oacute;n a lo establecido por el derecho com&uacute;n y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006 LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong>&nbsp;La consulta de este documento queda condicionada a la aceptaci&oacute;n de las siguientes condiciones de uso: Este documento es &uacute;nicamente para usos privados enmarcados en actividades de investigaci&oacute;n y docencia. No se autoriza su reproducci&oacute;n con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilizaci&oacute;n o cita de partes debe indicarse el nombre de la persona autora.</p>
</div>]]></dcterms:rights>
    <dcterms:format><![CDATA[PDF]]></dcterms:format>
    <dcterms:extent><![CDATA[16 p.]]></dcterms:extent>
    <dcterms:language><![CDATA[Ingl&eacute;s]]></dcterms:language>
    <dcterms:type><![CDATA[Art&iacute;culo]]></dcterms:type>
    <dcterms:identifier><![CDATA[<span data-sheets-formula-bar-text-style="font-size:13px;color:#000000;font-weight:normal;text-decoration:none;font-family:'Arial';font-style:normal;text-decoration-skip-ink:none;">10.1002/smll.202402696</span>]]></dcterms:identifier>
</rdf:Description><rdf:Description rdf:about="https://riquim.fq.edu.uy/items/show/6604">
    <dcterms:title><![CDATA[<strong>Reactivity of bi- and monometallic trifluoroacetates towards amorphous SiO2</strong>]]></dcterms:title>
    <dcterms:subject><![CDATA[REACTIVIDAD]]></dcterms:subject>
    <dcterms:subject><![CDATA[ACETATO]]></dcterms:subject>
    <dcterms:subject><![CDATA[FLUORURO]]></dcterms:subject>
    <dcterms:subject><![CDATA[BIBLIOGRAFIA NACIONAL QUIMICA]]></dcterms:subject>
    <dcterms:subject><![CDATA[2022]]></dcterms:subject>
    <dcterms:abstract><![CDATA[The reactivity of alkali&ndash;manganese(II) and alkali trifluoroacetates towards amorphous SiO2 (a-SiO2) was studied in the solid-state. K4Mn2(tfa)8, Cs3Mn2(tfa)7(tfaH), KH(tfa)2, and CsH(tfa)2 (tfa = CF3COO&ndash;) were thermally decomposed under vacuum in fused quartz tubes. Three new bimetallic fluorotrifluoroacetates of formulas K4Mn3(tfa)9F, Cs4Mn3(tfa)9F, and K2Mn(tfa)3F were discovered upon thermolysis at 175 &deg;C. K4Mn3(tfa)9F and Cs4Mn3(tfa)9F feature a triangular-bridged metal cluster of formula [Mn3(&mu;3-F)(&mu;2- tfa)6(tfa)3]4&minus;. In the case of K2Mn(tfa)3F, fluoride serves as an inverse coordination center for the tetra hedral metal cluster K2Mn2(&mu;4-F). Fluorotrifluoroacetates may be regarded as intermediates in the trans formation of bimetallic trifluoroacetates to fluoroperovskites KMnF3, CsMnF3, and Cs2MnF4, which crystal lized between 250 and 600 &deg;C. Decomposition of these trifluoroacetates also yielded alkali hexafluorosili cates K2SiF6 and Cs2SiF6 as a result of the fluorination of fused quartz. The ability to fluorinate fused quartz was observed for monometallic alkali trifluoroacetates as well. Hexafluorosilicates and heptafluoro silicates K3SiF7 and Cs3SiF7 were obtained upon thermolysis of KH(tfa)2 and CsH(tfa)2 between 200 and 400 &deg;C. This ability was exploited to synthesize fluorosilicates under air by simply reacting alkali trifluoroa cetates with a-SiO2 powder.]]></dcterms:abstract>
    <dcterms:creator><![CDATA[<strong>Munasinghe, Hashini N.</strong>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<strong>Imer, Marcos R.</strong>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<strong>Szlag, Regina G.</strong>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?a6f6b983eb02f40fe8e9784a71115fd267d30ff3d5997288d688b4c247e99d4e992cc6c5f422970aefe50e0211ce803a6f4322d3eda65e95887a20dd9a4e39fd" target="_blank"><strong>Suescun, Leopoldo</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<strong>Rabuffetti, Federico A.</strong>]]></dcterms:creator>
    <dcterms:source><![CDATA[Dalton Transactions, v.47, 2022. -- pp. 18224-18233]]></dcterms:source>
    <dcterms:publisher><![CDATA[Royal Society of Chemistry]]></dcterms:publisher>
    <dcterms:date><![CDATA[2022]]></dcterms:date>
    <dcterms:rights><![CDATA[<p><strong>Informaci&oacute;n sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislaci&oacute;n uruguaya protege el derecho</strong>&nbsp;de autor sobre toda creaci&oacute;n literaria, cient&iacute;fica o art&iacute;stica, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeci&oacute;n a lo establecido por el derecho com&uacute;n y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006 LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong>&nbsp;La consulta de este documento queda condicionada a la aceptaci&oacute;n de las siguientes condiciones de uso: Este documento es &uacute;nicamente para usos privados enmarcados en actividades de investigaci&oacute;n y docencia. No se autoriza su reproducci&oacute;n con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilizaci&oacute;n o cita de partes debe indicarse el nombre de la persona autora.</p>]]></dcterms:rights>
    <dcterms:format><![CDATA[PDF]]></dcterms:format>
    <dcterms:extent><![CDATA[10 p.]]></dcterms:extent>
    <dcterms:language><![CDATA[Ingl&eacute;s]]></dcterms:language>
    <dcterms:type><![CDATA[Art&iacute;culo]]></dcterms:type>
    <dcterms:identifier><![CDATA[10.1039/d2dt02822k]]></dcterms:identifier>
</rdf:Description><rdf:Description rdf:about="https://riquim.fq.edu.uy/items/show/6561">
    <dcterms:title><![CDATA[<strong>Fluoride-selective chemosensor based on an anion imprinted fluorescent polymer</strong>]]></dcterms:title>
    <dcterms:subject><![CDATA[ANIONES]]></dcterms:subject>
    <dcterms:subject><![CDATA[QUIMIOSENSORES]]></dcterms:subject>
    <dcterms:subject><![CDATA[FLUORURO]]></dcterms:subject>
    <dcterms:subject><![CDATA[POLIMEROS]]></dcterms:subject>
    <dcterms:subject><![CDATA[SENSORES OPTICOS]]></dcterms:subject>
    <dcterms:subject><![CDATA[BIBLIOGRAFIA NACIONAL QUIMICA]]></dcterms:subject>
    <dcterms:subject><![CDATA[2022]]></dcterms:subject>
    <dcterms:abstract><![CDATA[The sensing of fluoride ion through convenient and inexpensive methods has become significant analytical goals. The state-of-the-art involves the supporting of urea/thiourea optical discrete anion sensors into a polymeric scaffold. Nevertheless, high levels of selectivity are difficult to achieve, since the colorimetric/fluorometric response is also quenched by other anions such as dihydrogenphosphate. In this work we present, for the first time, the design of a polymeric optical fluoride chemosensor by using the anion-imprinting technique. First, four polymerizable anion receptors containing a urea-type binding site and different fluorophores as signaling units were prepared. One of them (1-(4-vinylphenyl)-3-(1-naphtyl)-urea) shows the most intense fluorescence emis sion in solution, exhibiting high optical sensitivity only for F&ndash; and H2PO4&ndash; . The electronic and structural features behind the optical response and anion affinity were elucidated through experimental and computational tools. To enhance the optical sensitivity and selectivity, a fluoride-imprinted polymeric optical sensor was prepared starting from this soluble sensor. The fluorescent emission is 13 times higher for the polymer and it is switched off only in the presence of fluoride, while for the rest of the anions, including H2PO4&ndash; , there was almost no optical response. To the best of our knowledge, this is the first fluoride-imprinted polymeric optical sensor reported so far.]]></dcterms:abstract>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?153a14c6db247331e65570aa180b886d5b96a92ab4ad43fe90c1e63d72b4b5d9ae6e54f4a751a2c5330486da71536f229af261b882d57e928628d47ec12c0895" target="_blank"><strong>Qui&ntilde;one, Delfina</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?1f9f18175345bbc7241fb1a12fa08267dae7fe6ba6de3978ba8711e6ff52742cef4a348d120f825901b31857ceecd880a3baf24aa3d8cb31901d0a8a1141546e" target="_blank"><strong>Belluzzi, Marcelo</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?750e9b353a1a0eefb2ebafb09948ec8ad0aaf80f89b11beeaec5c09b63f96eaba9e18ada7bbd99aa41fb5465563fac0dc417bfd7ca15c0e1b30c90239c1b2ecb" target="_blank"><strong>Torres, Julia</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?abe83e1d0ff0032077eebc59e242406dcee0534acdd3d7271bd4139b164fd4a3ececcd45a5348512bdab41575764ee4a52693aab84f5f508900b084e93dca1c0" target="_blank"><strong>Brovetto, Margarita</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a href="https://export.cvuy.uy/cv/?5ad3267f4b4cb5190a6d9a3f5877923f528b6603e8a436c2005a31c5f35cd644629532a16ae958823cff6464fe03287baebd3b8724cc14f8d05da74957fe496d" target="_blank"><strong>Veiga, Nicol&aacute;s</strong></a>]]></dcterms:creator>
    <dcterms:source><![CDATA[Polyhedron v.225, 2022. --e116033]]></dcterms:source>
    <dcterms:publisher><![CDATA[Elsevier]]></dcterms:publisher>
    <dcterms:date><![CDATA[2022]]></dcterms:date>
    <dcterms:rights><![CDATA[<p><strong>Informaci&oacute;n sobre Derechos de Autor</strong></p>
<p>(Por favor lea este aviso antes de abrir los documentos u objetos)</p>
<p><strong>La legislaci&oacute;n uruguaya protege el derecho</strong>&nbsp;de autor sobre toda creaci&oacute;n literaria, cient&iacute;fica o art&iacute;stica, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeci&oacute;n a lo establecido por el derecho com&uacute;n y las siguientes leyes (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006 LEY 18.046 DE 24 DE OCTUBRE DE 2006)</p>
<p><strong>ADVERTENCIA -</strong>&nbsp;La consulta de este documento queda condicionada a la aceptaci&oacute;n de las siguientes condiciones de uso: Este documento es &uacute;nicamente para usos privados enmarcados en actividades de investigaci&oacute;n y docencia. No se autoriza su reproducci&oacute;n con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilizaci&oacute;n o cita de partes debe indicarse el nombre de la persona autora.</p>]]></dcterms:rights>
    <dcterms:format><![CDATA[PDF]]></dcterms:format>
    <dcterms:extent><![CDATA[12 p.]]></dcterms:extent>
    <dcterms:language><![CDATA[Ingl&eacute;s]]></dcterms:language>
    <dcterms:type><![CDATA[Art&iacute;culo]]></dcterms:type>
    <dcterms:identifier><![CDATA[10.1016/j.poly.2022.116033]]></dcterms:identifier>
</rdf:Description><rdf:Description rdf:about="https://riquim.fq.edu.uy/items/show/1882">
    <dcterms:title><![CDATA[<strong>Qu&iacute;mica anal&iacute;tica aplicada a una tem&aacute;tica de salud de la poblaci&oacute;n : determinaci&oacute;n de fluoruro en agua de consumo en Uruguay</strong>]]></dcterms:title>
    <dcterms:subject><![CDATA[QUIMICA ANALITICA]]></dcterms:subject>
    <dcterms:subject><![CDATA[SALUD PUBLICA]]></dcterms:subject>
    <dcterms:subject><![CDATA[AGUA DE CONSUMO]]></dcterms:subject>
    <dcterms:subject><![CDATA[FLUORURO]]></dcterms:subject>
    <dcterms:subject><![CDATA[URUGUAY]]></dcterms:subject>
    <dcterms:subject><![CDATA[SALUD PUBLICA]]></dcterms:subject>
    <dcterms:subject><![CDATA[2007]]></dcterms:subject>
    <dcterms:subject><![CDATA[BIBLIOGRAF&Iacute;A NACIONAL QU&Iacute;MICA]]></dcterms:subject>
    <dcterms:creator><![CDATA[<a title="Curr&iacute;culum Vitae" href="http://buscadores.anii.org.uy/buscador_sni/exportador/ExportarPdf?hash=617ff0430e37557fbf5f99096500417c" target="_blank"><strong>Pist&oacute;n, Mariela</strong></a>]]></dcterms:creator>
    <dcterms:creator><![CDATA[<a title="Curr&iacute;culum Vitae" href="http://buscadores.anii.org.uy/buscador_sni/exportador/ExportarPdf?hash=688a401e62d97c4c6ad393153a90d71f" target="_blank"><strong>Dol, Isabel</strong></a>]]></dcterms:creator>
    <dcterms:source><![CDATA[Anuario Latinoamericano de Educaci&oacute;n Qu&iacute;mica v. 20, no. 22, 2006-2007. -- p. 108-111]]></dcterms:source>
    <dcterms:publisher><![CDATA[Secretar&iacute;a de Ciencia y T&eacute;cnica; Laboratorio de Alternativas Educativas]]></dcterms:publisher>
    <dcterms:date><![CDATA[2007]]></dcterms:date>
    <dcterms:rights><![CDATA[<p><strong>Informaci&oacute;n sobre Derechos de Autor</strong><br /> <br /> (Por favor lea este aviso antes de abrir los documentos u objetos)<br /> <br /> <strong>La legislaci&oacute;n uruguaya</strong> protege el derecho de autor sobre toda creaci&oacute;n literaria, cient&iacute;fica o art&iacute;stica, tanto en lo que tiene que ver con sus derechos morales, como en lo referente a los derechos patrimoniales con sujeci&oacute;n a lo establecido por el derecho com&uacute;n y las siguientes leyes<br /> <br /> (LEY 9.739 DE 17 DE DICIEMBRE DE 1937 SOBRE PROPIEDAD LITERARIA Y ARTISTICA CON LAS MODIFICACIONES INTRODUCIDAS POR LA LEY DE DERECHO DE AUTOR Y DERECHOS CONEXOS No. 17.616 DE 10 DE ENERO DE 2003, LEY 17.805 DE 26 DE AGOSTO DE 2004, LEY 18.046 DE 24 DE OCTUBRE DE 2006 LEY 18.046 DE 24 DE OCTUBRE DE 2006)<br /> <br /> <strong>ADVERTENCIA -</strong> La consulta de este documento queda condicionada a la aceptaci&oacute;n de las siguientes condiciones de uso: Este documento es &uacute;nicamente para usos privados enmarcados en actividades de investigaci&oacute;n y docencia. No se autoriza su reproducci&oacute;n con fines de lucro. Esta reserva de derechos afecta tanto los datos del documento como a sus contenidos. En la utilizaci&oacute;n o cita de partes debe indicarse el nombre de la persona autora.</p>]]></dcterms:rights>
    <dcterms:format><![CDATA[PDF]]></dcterms:format>
    <dcterms:language><![CDATA[Espa&ntilde;ol]]></dcterms:language>
    <dcterms:type><![CDATA[Art&iacute;culo]]></dcterms:type>
    <dcterms:identifier><![CDATA[ISSN 0328-087X]]></dcterms:identifier>
</rdf:Description></rdf:RDF>
