His lab identified and isolated a population of stem cells from the human foetal cochlea and also generated one of the first developmentally informed protocols to direct human pluripotent stem cells into auditory cell types. He also demonstrated, in preclinical models, the proof of concept that stem cells can be used to functionally repair the damaged cochlea. 

He is Professor of Sensory Stem Cell Biology at the University of Sheffield, and Founder Director and Chief Scientific Officer of Rinri Therapeutics. Rinri Therapeutics is a biotech company advancing the clinical application of pluripotent stem cells for the treatment of hearing loss.