Craig Dedman


Craig completed his PhD in the Summer of 2021 and is presently working as a Postdoctoral Fellow at the University of Oxford.


In 2013, Craig graduated from the University of Exeter having completed a degree in BSc Biological Sciences, achieving an upper second-class degree. After a short break from academics to travel, he was invited to undertake an MSc by Research degree in the Environmental Biology Research Group at the University of Exeter in collaboration with Plymouth Marine Laboratory. The research project completed for his Masters focussed upon investigating microplastic ingestion by zooplankton using novel methods. During this time, Craig was invited by Prof Thomas Kiørboe to carry out high-speed observations of zooplankton at Denmark Technical University Aqua. Following the awarding of his Master’s degree in 2015, Craig completed roles in the environmental charity sector, before entering a position at Springer Nature’s Scientific Reports. In 2017, Craig was offered a NERC CENTA DTP studentship, commencing an interdisciplinary PhD under the supervision of Dr. Gemma-Louise Davies of UCL and Dr. Joseph Christie-Oleza of the University of Warwick.

Research Interests

Craig’s academic interests focus upon the impact of anthropogenic activity upon the environment, particularly the marine environment. His research focuses upon the ecotoxic effects of pollutants within the marine ecosystem, investigating effects at both the ecosystem and organism level. Through his research, Craig hopes to have a positive impact upon the conservation of biodiversity by influencing policy on the release and management of substances into the environment. During his PhD, Craig will investigate the ecotoxic effects of nanomaterials in the marine environment. A suite of nanomaterials will be produced and characterised in the lab before their use in toxicity experiments with natural marine microbial communities. Subsequently, the mechanisms of observed effects upon marine microbes will be examined using a number of model marine microbe species.

Presentations, Posters and Conferences

Oral Presentation: NERC CENTA DTP Conference, 15th September 2017.


C.J. Dedman, M.M.I. Rizk, J. Christie-Oleza, G.-L. Davies*, “Investigating the impact of cerium oxide nanoparticles upon the ecologically significant marine cyanobacterium Prochlorococcus“, Frontiers in Marine Science, 2021, DOI: 10.3389/fmars.2021.668097

C.J. Dedman, A.M. King, J. Christie-Oleza, G.-L. Davies*, “Environmentally relevant concentrations of titanium dioxide nanoparticles pose negligible risk to marine microbes”, Environmental Science – Nano, 2021, 8, 1236-1255. DOICover art

C.J. Dedman, G.C. Newson, G.L. Davies*, J. Christie-Oleza*, “Mechanisms of silver nanoparticle toxicity on the marine cyanobacterium Prochlorococcus under environmentally-relevant conditions”, Science of the Total Environment, 2020, 747, 141229. DOI


Craig’s PhD is supported by the NERC-sponsored doctoral training centre CENTA.


We additionally thanks Energenics UK for supplying materials and advice.