Ultrasound Stimulated Nucleation and Growth of a Dye Assembly into Extended Gel Nanostructures

…, VK Praveen, A Ajayaghosh, N Armaroli

Index: Malicka, Joanna M.; Sandeep, Anjamkudy; Monti, Filippo; Bandini, Elisa; Gazzano, Massimo; Ranjith, Choorikkat; Praveen, Vakayil K.; Ajayaghosh, Ayyappanpillai; Armaroli, Nicola Chemistry - A European Journal, 2013 , vol. 19, # 39 p. 12991 - 13001

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Citation Number: 32

Abstract

Abstract A squaraine dye functionalized with a bulky trialkoxy phenyl moiety through a flexible diamide linkage (GA-SQ) capable of undergoing self-assembly has been synthesized and fully characterized. Rapid cooling of a hot solution of GA-SQ to 0 C results in self-assembled precipitates consisting of two types of nanostructures, rings and ill-defined short fibers. The application of ultrasound modifies the conditions for the supersaturation- ...