title: Self-assembly studies of a chiral bisurea-based superhydrogelator.
abstract: A chiral bisurea-based superhydrogelator that is capable of forming supramolecular hydrogels at concentrations as low as 0.2 mM is reported. This soft material has been characterized by thermal studies, rheology, X-ray diffraction analysis, transmission electron microscopy (TEM), and by various spectroscopic techniques (electronic and vibrational circular dichroism and by FTIR and Raman spectroscopy). The expression of chirality on the molecular and supramolecular levels has been studied and a clear amplification of its chirality into the achiral analogue has been observed. Furthermore, thermal analysis showed that the hydrogelation of compound 1 has a high response to temperature, which corresponds to an enthalpy-driven self-assembly process. These particular thermal characteristics make these materials easy to handle for soft-application technologies.
authors.affiliation: Departament de Química Inorgànica i Orgànica, Universitat Jaume I, Castelló, Spain.
authors.forename: Francisco
authors.initials: F
authors.lastname: Rodríguez-Llansola
authors.forename: Daniel
authors.initials: D
authors.lastname: Hermida-Merino
authors.forename: Belén
authors.initials: B
authors.lastname: Nieto-Ortega
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Ramírez
authors.forename: Juan T López
authors.initials: JT
authors.lastname: Navarrete
authors.forename: Juan
authors.initials: J
authors.lastname: Casado
authors.forename: Ian W
authors.initials: IW
authors.lastname: Hamley
authors.forename: Beatriu
authors.initials: B
authors.lastname: Escuder
authors.forename: Wayne
authors.initials: W
authors.lastname: Hayes
authors.forename: Juan F
authors.initials: JF
authors.lastname: Miravet
mesh_terms: D002942:Circular Dichroism; D018360:Crystallography, X-Ray; D020100:Hydrogels / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D017550:Spectroscopy, Fourier Transform Infrared; D013237:Stereoisomerism; D013816:Thermodynamics; D014508:Urea / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D020100:Hydrogels; D014508:Urea