title: Versatile supramolecular organogel with outstanding stability toward aqueous interfaces.
abstract: In this communication, we report on a novel and versatile low-molecular-weight organogelator. The methanolic gel exhibits an exceptional water-enhanced stability as evidenced by a 30 °C increase in Tg with up to 10%v/v of water. This atypical property not observed with other solvents makes of this supramolecular gel a highly stable matrix compatible with aqueous interfaces. As a proof of principle we present the sensing performance of a symmetric tricarbocyanine fluorophore bearing a Zn(II)chelator unit. The system retained its remarkable physical integrity for a long period of time opening new possibilities for other organic-aqueous interface applications.
authors.affiliation: CIHIDECAR-CONICET, Departamento Química Orgánica, Facultad de Ciencias Exactas y Naturales, and ‡UMYMFOR-CONICET, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, , Universidad de Buenos Aires , 3er piso, pabellón II, Cdad. Universitaria, C1428EGA Buenos Aires, Argentina.
authors.forename: Evelyn L
authors.initials: EL
authors.lastname: Bonifazi
authors.forename: Valeria C
authors.initials: VC
authors.lastname: Edelsztein
authors.forename: Guillermo O
authors.initials: GO
authors.lastname: Menéndez
authors.forename: Cecilia
authors.initials: C
authors.lastname: Samaniego López
authors.forename: Carla C
authors.initials: CC
authors.lastname: Spagnuolo
authors.forename: Pablo H
authors.initials: PH
authors.lastname: Di Chenna
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry; D005782:Gels / Q000737:chemistry*; D008970:Molecular Weight; D012997:Solvents / Q000737:chemistry*; D014867:Water / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry
chemical_list: D005456:Fluorescent Dyes; D005782:Gels; D012997:Solvents; D014867:Water; D015032:Zinc