Developing biopolymer systems for long-term controlled intra-ruminal release of methane inhibitors in livestock

The generation of greenhouse gases from agricultural practices is an increasingly important global issue, with ruminant livestock contributing a large proportion of methane emissions.  Although few feed-based solutions have demonstrated some methane inhibition potential, their application is limited by the need for daily administration, an impractical approach for extensive grazing systems that dominate Australian livestock production.

This project, funded by the CRC for Zero Net Emissions in Agriculture, addresses this challenge by developing biodegradable biopolymer systems capable of long-term, controlled intra-ruminal release of methane inhibitors. This project will investigate how the release dynamics of methane inhibitors from biopolymer systems influence their effectiveness and interaction within the ruminant environment. The research aims to establish fundamental design principles for developing next-generation sustained-release systems.

This project will be conducted within the School of Chemical Engineering at UQ, specifically within the Centre for Bioplastics and Biocomposites. The School and UQ provide a world-class research environment with state-of-the-art facilities.

As part of the CRC for Zero Net Emissions in Agriculture initiative, this PhD project offers an exciting opportunity to work at the interface of materials engineering and agriculture, collaborating closely with industry partners and a multidisciplinary research team spanning the School of Agriculture and Food Sustainability, Queensland Alliance for Agriculture and Food Innovation (QAAFI) and the Department of Primary Industries. The candidate will be actively encouraged to participate in project meetings, seminars and planning sessions.

The scholarship includes a two-week full-time industry internship, providing the candidate with the chance to work closely with industry partners and gain practical experience. 

This project is supported by the Research project scholarship.

Learn more about the Research project scholarship.

Your application will be assessed on a competitive basis.

We take into account your:

• previous academic record
• publication record
• honours and awards
• employment history

A working knowledge of polymer processing, material characterisation, and polymer analysis would be of benefit to someone working on this project.

You will demonstrate academic achievement in the field/s of chemical engineering, materials science, polymer chemistry or environmental science and the potential for scholastic success.

A background or knowledge of controlled-release systems is highly desirable.

You must submit an expression of interest (EOI) by 23 November, 2025 23 November, 2025.

Before you apply

1. Check your eligibility for the Doctor of Philosophy (PhD).
2. Prepare your documentation.
3. If you have any questions about whether the project is suitable for your research interests, contact Dr Celine Chaleat (c.chaleat@uq.edu.au).

When you apply

To apply, submit an expression of interest (EOI) for the program. You don't need to apply separately for the project or scholarship. How to submit an EOI

In your EOI, complete the ‘Scholarship/Sponsorship’ section with the following details:

1. Are you applying for an advertised project: 'Yes'
2. Project: 'Research project scholarship'
3. Scholarship Code Listed in the Advertisement: BIOPOLYMER-CHALEAT
4. Link to Scholarship Advertisement: https://study.uq.edu.au/study-options/phd-mphil-professional-doctorate/projects/developing-biopolymer-systems-long-term-controlled-intra-ruminal-release-methane-inhibitors-livestock

Submit an EOI