New Principles for Targeting and Triggering based on Molecular Self-Assembly in Topological Defects of Liquid Crystals
Abstract
Major Goals: This project was focused on understanding equilibrium and dynamic aspects of molecular self-assembly of amphiphiles and polymers in defects of nematic solvents, and leveraging that understanding to demonstrate new principles that permit formation and manipulation of single nanoscopic assemblies. The approach built from Abbott's discovery that molecular assemblies can be formed in topological defects of liquid crystals. A particular focus of this collaborative research project between the Abbott and Gianneschi groups was directed to development of structure-property relationships for self-assembly of polymers in topological defects of liquid crystals. The efforts aimed to generate a number of important advances, including the use of RAFT to synthesize homopolymers and copolymers for development of structure-property relationships, including self-assembly in bulk LCs and defects of LCs. A second focus of the proposal revolved around the manipulation of defects in LCs using electric fields. Specifically, we aimed to demonstrate control of the formation and disassembly of single polymeric and amphiphilic assemblies, by using electric fields to relocate defects to areas of LC that contain targeted polymers or amphiphiles. Overall, the research aimed to use of topological defects as nanoscopic reactors that can host both chemical and physical transformations, and be readily manipulated to add and remove reagents.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 14, 2021
- Accession Number
- AD1190292
Entities
People
- Nathan C. Gianneschi
- Nicholas Abbott
Organizations
- Cornell University