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Water Induced Morphological Transformation of a Poly(aryl ether) Dendron Amphiphile: Helical Fibers to Nanorods; as Light-Harvesting Antenna System

Abstract

Self-assembly of suitable molecular building blocks is an efficient, and convenient approach to generate nanomaterials with various morphologies and functions. Moreover understanding the nature of molecules and controlling factors of their self-assembly process is crucial in fundamental aspects of molecular self-assembly which provide insights into the design of new assemblies with functional nano-architectures. To this end, the present study reports water induced self-assembled multifaceted morphology formation and the plausible pathway of the morphology transformation of a single poly(aryl ether) dendron amphiphile 1(D). In THF, 1(D) self-assembles into helical fibers. However, with increasing the water fraction into its THF solution, the morphology changes to nanorods through an intermediate scroll-up path of exfoliated fibers. The nanorods formation and transformation of 1(D) is investigated using various microscopic and spectroscopic techniques, which indicate that it has highly ordered multilayered arrays of 1(D) molecules. Finally, this multilayered arrays of 1(D) nanorods are exploited for constructing model light-harvesting system via incorporation of small quantities of two newly designed BODIPY based molecules as energy acceptors and 1(D) as an antenna chromophores.

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Publication details

The article was received on 15 Oct 2017, accepted on 04 Dec 2017 and first published on 06 Dec 2017


Article type: Paper
DOI: 10.1039/C7NR07663K
Citation: Nanoscale, 2017, Accepted Manuscript
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    Water Induced Morphological Transformation of a Poly(aryl ether) Dendron Amphiphile: Helical Fibers to Nanorods; as Light-Harvesting Antenna System

    A. Maity, A. Dey, M. Gangopadhyay and A. Das, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR07663K

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