Sustainable Supramolecular Structured Liquids

personal care products, where gel-like materials have an important role in providing products with appropriate physical performance. Historically, such materials have relied on the use of polymeric materials, which are powerful and tunable viscosification agents that can cope with high-complexity mixtures, including surfactants and emulsions. However, such materials typically have poor sustainability credentials, being derived from crude oil, and suffering from very poor breakdown profiles in environmental waste. There have therefore been attempts to replace oil-based polymers as structuring agents with naturally occurring biopolymers, but these have not been wholly successful, owing to limited tunability and/or poor performance. This proposal therefore takes a sustainable supramolecular approach to fluid modification, targeting liquid modifiers that can self- assemble from low-molecular-weight building blocks. In principle, such systems can be synthesised from wholly sustainable resources and the non-covalent interactions responsible or their assembly can easily be reversed, leading to effective degradation into non- persistent, non-toxic fragments after use. Supervisory Team: Prof David Smith (York Chemistry) Further information The EPSRC Centre for Doctoral Training in Chemical Synthesis for a Healthy Planet (CSHP CDT) is a EPSRC-funded centre focused on training the next generation of synthetic chemists, developing a sustainable, innovative chemistry culture that equips students to address major emerging and future global challenges in Human Health, Energy & Materials, and Food Security. We offer a fully-funded four year PhD programme, delivered jointly by the Universities of Oxford and York, comprised of taught courses and a substantive research project. Student cohorts will work together in a 4-month training period at both Oxford and York, before embarking on their main PhD projects. These substantive projects will be industry co-supervised, and based at either the Department of Chemistry in Oxford, or the Green Chemistry Centre of Excellence at York and the associated Department of Chemistry. This PhD project will primarily be based at the University of York. The first application deadline is 12 noon on the 13th November 2026 . We will continue to receive applications following this deadline, however some of the projects may be filled following the assessment of the first round of applications. We therefore encourage you to submit your application early to ensure that your first choice project is available. All project partners recognise the importance of equal participation, progression and success for all. We strive to provide a working, learning, social and living environment that will enable all our staff and students to contribute fully, to flourish and to excel - a place where we can ALL be ourselves. The Department of Chemistry in York holds an Athena SWAN Gold Award, while the Department of Chemistry in Oxford holds a Silver Award. Both are committed to supporting equality and diversity for all staff and students. The Departments strive to provide a working environment which allows all staff and students to contribute fully, to flourish, and to excel; for more details, see: Equality and Diversity at York and Equality and Diversity at Oxford. In particular, we recognise the importance of the equal participation of women at all levels in a subject that has traditionally been male-dominated. We also particularly encourage applications from people who identify as Black, Asian or from a Minority Ethnic background, who are underrepresented across the partnership. Eligibility Criteria You must have, or expect to gain, a minimum 2:1 Honours degree or international equivalent in a subject relevant to the proposed PhD project (usually chemistry or chemical engineering, but please get in touch if you think your qualification may be relevant). Enthusiasm for research, the ability to think and work independently, excellent analytical skills and strong verbal and written communication skills are also essential requirements. How to apply Submit an online PhD in Chemistry application. You will need to prepare the following information: 1000-word personal statement, focusing on your interest and experience in your proposed field of research Clearly state your 1-2-3 choice of substantive research projects chosen from our list at the end of your personal statement Transcripts detailing your university-level qualifications and marks to date Two Academic/Professional References: you will be required to submit contact details for 2 referees Complete the CSHP CDT Studentship: Equality, Diversity and Inclusion (EDI) Data Form (for York applicants only). For more details on the application and selection processes, and for answers to general questions (i.e. funding eligibility, project allocation, etc.) please visit our how to apply and FAQs section or join us for our online open event. Contact Details Project-specific Prof David Smith, david.smith@york.ac.uk General CDT enquiries: cshp-cdt@chem.ox.ac.uk or chem-env-pgr@york.ac.uk Funding Notes This project will be funded under the EPSRC Centre for Doctoral Training in Chemical Synthesis for a Healthy Planet (CSHP CDT). These CDT studentships provide 100% home fees, a minimum tax-free annual living allowance of £21,805 (2026/27 UKRI rate), and a research training support grant of £20,000. Candidates of any nationality are welcome to apply and up to 30% of EPSRC CDT studentships may be awarded to exceptional international students. Please note funding does not include visa costs or NHS surcharge for visa holders. Not all projects will be funded; a limited number of strong candidates will be appointed via a competitive process.