Developing information-rich two-dimensional materials as a versatile platform for information storage and processing (S3.5-MPS-Foster)

Nature demonstrates the potential of information-rich polymers such as DNA and proteins for interacting with other molecules in precise ways that enable them to store and process information, assemble complex structures and create highly selective sensors and active catalysts. Two-dimensional materials offer a unique combination of properties thanks to their high-external surface area, extreme aspect ratios and nanoscopic dimensions that have enabled their use in a wide range of sensing, catalytic, separation and electronics applications. However, to date no examples of information-rich 2D materials have been reported.

The Foster group are focussed on developing “programmable two-dimensional materials” which can precisely position multiple functional groups on their surface to enable their use in advanced sensing, catalytic, electronics and separation applications. In previous work we have harnessed metal-organic and hydrogen bonding interactions to assemble up to five different components within a single nanosheet. However, the components in these materials are all either highly ordered or randomly arranged which limits the amount of information within the systems, and so the complexity of functions that can be achieved.

In this project we will develop information-rich nanosheets for the first time. These nanosheets will allow components to be organised in any pattern desired on their surface, enabling exciting new applications in information storage, processing, biosensing, multistep-catalysis and self-assembly.

This PhD will combine chemistry and techniques taken from organic-, co-ordination-, polymer-,biological- and nano-chemistry. You’ll synthesise sophisticated new building blocks and develop chemistry to enable them to come together to form information-rich nanosheets. You’ll learn to characterise your materials using techniques including NMR, mass-spec, x-ray crystallography and atomic force microscopy. You’ll then explore the new opportunities opened up by these information-rich materials in line with your interests.

The Foster group is based in the Department of Chemistry at the University of Sheffield which is consistently ranked in the top 100 of the world’s universities. The group sit-within the Supramolecular Chemistry and Materials research group giving you access to world-leading equipment, expertise and training to undertake your research. The work is in collaboration with Prof. Joe Harrity who will provide additional expertise and support in organic chemistry aspects of the project. We also collaborate across the Faculties of Science and Engineering which has a strategic research theme focussed on Nanoscience and Nanotechnology. You’ll also be encouraged to apply for the Grantham Scholarship (https://grantham.sheffield.ac.uk) which provides additional time to undertake training in environmental advocacy.