Versatile Supramolecular Organogel with Outstanding Stability toward Aqueous Interfaces

EVELYN L. BONIFAZI; VALERIA C. EDELSZTEIN; GUILLERMO O. MENÉNDEZ; CECILIA SAMANIEGO LÓPEZ; CARLA C. SPAGNUOLO; PABLO H. DI CHENNA

ACS APPLIED MATERIALS & INTERFACES

AMER CHEMICAL SOC

Lugar: Washington; Año: 2014 p. 8933 - 8936

1944-8244

In this communication, we report on a novel and versatile low-molecular-weight organogelator. The meth- anolic 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 tricarbocya- nine 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.