Theory of clustering in binary mixtures with competing interactions

The importance of clustering, or microphase separation, is increasingly recognized, with applications in many technologies including nanomaterials and pharmaceutical crystallization. It is also important in nature; for example the membraneless organelles within biological cells. However, the mechanisms leading to such clusters are not completely understood.

This project aims to improve understanding of microphase separation in complex coacervates. These particular clusters, or microphases, are formed by, for example, mixtures of oppositely charged polyelectrolytes and might also describe some membraneless organelles.

To this end, the successful candidate will develop thermodynamic models of equilibrium clustering in binary mixtures with competing short-range and long-range interactions. The aim is to model and understand the link between particle interactions and microphase separation in complex coacervates.

It is expected that the applicant will have a good degree in Engineering, Physics, Chemistry, Mathematics, or any other related subject. We are particularly keen to hear from applicants who want to develop expertise in molecular theories of fluids. Prior experience in this area is useful but not a requirement.

The successful student, depending on eligibility, will have opportunities for teaching and further training with in the university, as well as participation in the intellectual community provided by the School of Engineering’s Institute for Materials and Processes, in which they will be based.

Further Information: 

The University of Edinburgh is committed to equality of opportunity for all its staff and students, and promotes a culture of inclusivity. Please see details here: https://www.ed.ac.uk/equality-diversity

Closing Date: 

Sunday, August 31, 2025

Principal Supervisor: 

Assistant Supervisor: 

TBC

Eligibility: 

Minimum entry qualification - an Honours degree at 2:1 or above (or International equivalent) in Engineering, Physics, Chemistry, Mathematics, or any other related subject possibly supported by an MSc Degree. Prior experience in molecular theories of fluids is useful but not a requirement.

Further information on English language requirements for EU/Overseas applicants.

Funding: 

Applications are welcomed from self-funded students, or students who are applying for scholarships from the University of Edinburgh or elsewhere.

Further information and other funding options.

Informal Enquiries: 

Dr Martin Sweatman - Martin.Sweatman@ed.ac.uk