Transformation and Patterning of Supermicelles using Dynamic Holographic Assembly - research published in Nature Communications
7 December 2015
Research carried out by Professor Ian Manners' group published in Nature Communications
The work shows that self-assembled supramolecular structures such a supermicelles (micelles formed by micelles as building blocks) can be manipulated and transformed using optical tweezers
Abstract: Although the solution self-assembly of block copolymers has enabled the fabrication of a broad range of complex, functional nanostructures, their precise manipulation and patterning remain a key challenge. Here we demonstrate that spherical and linear supermicelles, supramolecular structures held together by non-covalent solvophobic and coordination interactions and formed by the hierarchical self-assembly of block copolymer micelle and block comicelle precursors, can be manipulated, transformed and patterned with mediation by dynamic holographic assembly (optical tweezers). This allows the creation of new and stable soft-matter superstructures far from equilibrium. For example, individual spherical supermicelles can be optically held in close proximity and photocrosslinked through controlled coronal chemistry to generate linear oligomeric arrays. The use of optical tweezers also enables the directed deposition and immobilization of supermicelles on surfaces, allowing the precise creation of arrays of soft-matter nano-objects with potentially diverse functionality and a range of applications.
Oliver E.C. Gould, Huibin Qiu, David J. Lunn, John Rowden, Robert L. Harniman, Zachary M. Hudson, Mitchell A. Winnik, Mervyn J. Miles and Ian Manners
Nature Communications 2015, 6:10009