title: Self-assembled fibrillar networks of a multifaceted chiral squaramide: supramolecular multistimuli-responsive alcogels.
abstract: Chiral N,N'-disubstituted squaramide has been found to undergo self-assembly in a variety of alcoholic solvents at low concentrations leading to the formation of novel nanostructured supramolecular alcogels. The gels responded to thermal, mechanical, optical and chemical stimuli. Solubility studies, gelation ability tests and computer modeling of a series of structurally related squaramides proved the existence of a unique combination of non-covalent molecular interactions and favorable hydrophobic/hydrophilic balance in that drive the anisotropic growth of alcogel networks. The results have also revealed a remarkable effect of ultrasound on both the gelation kinetics and the properties of the alcogels.
authors.affiliation: Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany. David.Diaz@chemie.uni-regensburg.de.
authors.forename: Jana
authors.initials: J
authors.lastname: Schiller
authors.affiliation: Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany. David.Diaz@chemie.uni-regensburg.de and Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
authors.forename: Juan V
authors.initials: JV
authors.lastname: Alegre-Requena
authors.affiliation: Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
authors.forename: Eugenia
authors.initials: E
authors.lastname: Marqués-López
authors.affiliation: Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
authors.forename: Raquel P
authors.initials: RP
authors.lastname: Herrera
authors.affiliation: Departament de Química, EPS, Universitat de Lleida, Jaume II 69, 25001 Lleida, Spain.
authors.forename: Jordi
authors.initials: J
authors.lastname: Casanovas
authors.affiliation: Departament d'Enginyeria Química - ETSEIB and Center for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Alemán
authors.affiliation: Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany. David.Diaz@chemie.uni-regensburg.de and IQAC-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Díaz Díaz
mesh_terms: D005782:Gels; D057927:Hydrophobic and Hydrophilic Interactions; D049329:Nanostructures; D011803:Quinine / Q000031:analogs & derivatives* / Q000737:chemistry; D012995:Solubility; D012997:Solvents
chemical_list: D005782:Gels; D012997:Solvents; C000609819:squaramide; D011803:Quinine