Biofilm formation in wound environments is a major barrier to effective healing, as microbial communities interact with host tissue properties that are still poorly understood. In particular, the role of tissue mechanics in regulating biofilm development and bacterial communication remains largely unexplored, limiting the development of targeted intervention strategies. This PhD project focuses on integrating biomimetic reconstitution and Surface-Enhanced Raman Spectroscopy (SERS) to investigate how the physical and biochemical properties of wound-like environments influence biofilm progression.
The project will develop extracellular matrix models with controlled rheological properties that mimic relevant wound conditions, enabling systematic study of mono- and multispecies biofilms. In parallel, plasmonic nanostructures will be incorporated to enable non-invasive, label-free monitoring of bacterial quorum sensing and biofilm dynamics using SERS. A key objective is to establish a platform that links tissue mechanics, biofilm behaviour, and real-time molecular detection, providing new insights into infection progression and potential intervention points. The approach combines bioengineered mimetic matrix, nanomaterials, and optical sensing to capture biofilm dynamics in physiologically relevant conditions The doctoral candidate will receive interdisciplinary training in biofabrication, nanomaterials, spectroscopy, and microbiology.
The project will contribute to the development of advanced diagnostic platforms for infection monitoring within the HEAL-4WARD programme. Host laboratory: The Bottom-up Cell Biology and Bioengineering Lab aims to reverse-engineer molecular assemblies to understand how they function and to search for clinically relevant strategies to control peptidoglycan synthesis, biofilm matrix remodelling, and host-pathogen interactions. Our general goal is to advance our mechanistic understanding of key processes in bacterial physiology, potentially revealing new bacterial targets and thereby aiding the development of new strategies to combat bacterial pathogens. More information https://www.baranovalab.com/ The project will be developed in a tight collaboration with the world-leading expert on SERS Prof. Luis Liz-Marzán. More information http://www.bionanoplasmonics.com/index.php
Secondments: This project is carried out in collaboration with the following groups, and visits to their laboratories are expected during the project. A willingness to travel and spend time abroad is therefore essential:
- Prof. Gustavo Bodelon, University of Vigo, Spain
- Prof. Benoit Couturaud, CNRS-ICMPE, France
- Prof. Iolanda Francolini, Sapienza University of Rome, Italy