Since appointment, David has focused his research interests on the physiology and antimicrobial resistance properties of bacterial biofilms and the infectivity and virulence properties of opportunistic lung pathogens. In this respect his resarch crosses a number of different fields, including those of medical, industrial and ecological microbiology where he has attracted support from both private and public sector. He has supervised successfully a number of postgraduate students and postdoctoral fellows, has over 100 publications in these areas and has been an editor to the on-line journal Biofilm and to J. Basic Microbiol. In addition, he has frequently acted as consultant to the Pharmaceutical and healthcare Industries and has acted on behalf of the European Commission for the auditing of sterile medical device manufacture. He has also published in this area.
More recently, David has diversified his interests by introducing and developing a Widening Participation and Public Engagement agenda for the School. The overall aim of these programmes of activities are to encourage and inspire young learners from educationally and socioeconomically deprived areas that they too have a right to attend University. Successful activities have included the Pharmacy in Primary Schools (PIPS) programme, introducing a contextual-based Foundation Year programme and more recently, development of a Service Learning in Pharmacy programme whereby all 3rd year MPharm students visit a local high school to delver a healthcare awareness message relevant to teenagres and their health future. Wherever possible, David has always tried to publish in this sociologically important area in order to promote the ethos of the University and to encourage the most able students, irrespective of background, to apply to University.