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Self-assembly mechanism of folate-templated mesoporous silica

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Self-assembly mechanism of folate-templated mesoporous silica

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dc.contributor.author Atluri, Rambabu es_ES
dc.contributor.author Iqbal, Muhammad Naeem es_ES
dc.contributor.author Bacsik, Zoltan es_ES
dc.contributor.author Hedin, Niklas es_ES
dc.contributor.author Villaescusa Alonso, Luis Angel es_ES
dc.contributor.author García Bennet, Alfonso E. es_ES
dc.date.accessioned 2016-06-16T11:23:00Z
dc.date.issued 2013-09-24
dc.identifier.issn 0743-7463
dc.identifier.uri http://hdl.handle.net/10251/66023
dc.description.abstract A method to form ordered mesoporous silica based on the use of folate supramolecular templates has been developed. Evidence based on in situ small-angle X-ray scattering (SAXS), electron microscopy, infrared spectroscopy, and in situ conductivity measurements are used to investigate the organic inorganic interactions and synthesis mechanism. The behavior of folate molecules in solution differs distinctively from that of surfactants commonly used for the preparation of ordered mesoporous silica phases, notably with the absence of a critical micellar concentration. In situ SAXS studies reveal fluctuations in X-ray scattering intensities consistent with the condensation of the silica precursor surrounding the folate template and the growth of the silica mesostructure in the initial stages. High-angle X-ray diffraction shows that the folate template is well-ordered within the pores even after a few minutes of synthesis. Direct structural data for the self-assembly of folates into chiral tetramers within the pores of mesoporous silica provide evidence for the in register stacking of folate tetramers, resulting in a chiral surface of rotated tetramers, with a rotation angle of 30 degrees. Additionally, the self-assembled folates within pores were capable of adsorbing a considerable amount of CO2 gas through the cavity space of the tetramers. The study demonstrates the validity of using a naturally occurring template to produce relevant and functional mesoporous materials. es_ES
dc.description.sponsorship This work was supported by the Swedish Research Council (Project 2009-4716 AGB). Niklas Hedin acknowledges funding from the Swedish Energy Agency. Luis Angel Villaescusa is grateful for support from the Jose Castillejo Program of the Spanish Ministry of Sport and Education (Project JC2009-00141). The authors thank Y. Cerenius and M. Knaapila (MAX-lab Synchrotron Facitlity, Beamline 1711, Lund, Sweden) for assistance with SAXS experiments and beamline time. en_EN
dc.language Inglés es_ES
dc.publisher American Chemical Society es_ES
dc.relation Swedish Research Council 2009-4716 es_ES
dc.relation Swedish Energy Agency es_ES
dc.relation Spanish Ministry of Sport and Education JC2009-00141 es_ES
dc.relation.ispartof Langmuir es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject FOLIC-ACID SALTS es_ES
dc.subject CO2 es_ES
dc.subject RECOGNITION es_ES
dc.subject HELICES es_ES
dc.subject ROUTE es_ES
dc.subject SOFT es_ES
dc.subject.classification QUIMICA INORGANICA es_ES
dc.title Self-assembly mechanism of folate-templated mesoporous silica es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1021/la401532j
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Reconocimiento Molecular y Desarrollo Tecnológico - Institut de Reconeixement Molecular i Desenvolupament Tecnològic es_ES
dc.description.bibliographicCitation Atluri, R.; Iqbal, MN.; Bacsik, Z.; Hedin, N.; Villaescusa Alonso, LA.; García Bennet, AE. (2013). Self-assembly mechanism of folate-templated mesoporous silica. Langmuir. 29(38):12003-12012. doi:10.1021/la401532j es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1021/la401532j es_ES
dc.description.upvformatpinicio 12003 es_ES
dc.description.upvformatpfin 12012 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 29 es_ES
dc.description.issue 38 es_ES
dc.relation.senia 259910 es_ES


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