Temperature protocols to guide selective self-assembly of competing structures

Author:

Bupathy Arunkumar1,Frenkel Daan2ORCID,Sastry Srikanth1ORCID

Affiliation:

1. Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India

2. Centre for Computational Chemistry, Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, United Kingdom

Abstract

Significance Designing functional materials with switchable properties is a highly sought-after goal in materials science. We investigate the computational design of a multicomponent self-assembly system that can be guided into forming one of two predefined competing structures through simple temperature protocols. Our investigation reveals design constraints that should be observed in order to avoid formation of spurious or chimeric aggregates and to maximize selectivity of the target structure. We demonstrate that temperature protocols can be designed that lead to the formation of either one of the target structures with high selectivity. We discuss the important role played by secondary aggregation products, which we term “vestigial aggregates.”

Funder

UK-India Education and Research Initiative

Department of Science and Technology, Ministry of Science and Technology

National Supercomputing Mission, India

Science and Engineering Research Board, Depaartment of Science and Technology, India

Publisher

Proceedings of the National Academy of Sciences

Subject

Multidisciplinary

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