I am currently a Health Research Board (HRB) Postdoctoral Fellow in the Analytical and Biological Chemistry Research Facility (ABCRF) at University College Cork where I am working on open source pharmacophore software based on OpenBabel. OpenBabel is an international collaborative project to develop a cheminformatics toolkit which is free and open source.

Image from Ekins et al.

From Aug 06 to Sep 09, I was a postdoc at the Cambridge Crystallographic Data Centre (CCDC) where I worked on improving the protein-ligand docking software, GOLD. Docking software is used to rank the binding affinities of potential drugs to a particular target protein of interest. I developed improvements to the scoring function used by GOLD as part of a collaboration with Astex Therapeutics [JCIM2008]. I also investigated the underlying characteristics of scoring functions that led to success in rescoring experiments [JCIM2009].

From Jun 05 to Jul 06, I was a postdoc in the group of Dr. John Mitchell who was then based in the Unilever Centre for Molecular Informatics, University of Cambridge. I developed a method to to quantify the similarity between two explicit reaction mechanisms [JMB2007]. This is especially useful when comparing enzyme reaction mechanisms, as it can highlight similarities and differences outside the conventional hierarchy of the EC system (which only considers the overall reaction). This method could also be used by an experimentalist to query an existing database of mechanisms (for example, MACiE) and see whether anyone has previously found an enzyme with a mechanism like theirs.

The polypyridyl complexes of ruthenium (and its neighbour, osmium) have interesting photophysical and electrochemical properties which can be tuned by suitable choice of substituents (or linking groups in dinuclear complexes). Such complexes have been proposed as components in molecular electronics, and are also of interest for the development of dye-sensitised solar cells (for light to electricity conversion). I have carried out several computational studies of novel ruthenium complexes developed in the group of Prof. Han Vos, where I have tried to throw light (pun intended) on the electronic structure that underlies experimental results. One of these studies was the first DFT (density functional theory) study of any osmium complex attached to a surface [InorgChem2007]. In thst study I looked at the changes in the electronic structure of an osmium complex as it was oxidised and as it adsorbed to a surface. These results are related to in situ scanning tunnelling microscopy (STM) experiments by our collaborator (Prof. Jens Ulstrup).