The Team

Board (non-executive)

Tony Baxter, PhD, Chairman

Tony, a serial entrepreneur, is a past Chief Executive Officer (CEO) of several successful science-based Contract Research Organisations such as Cyprotex plc (sold to Evotec in 2016), and Argenta Discovery plc (sold to CRL in 2014). During his successful career he has also held a number of chairmanships and executive positions in life sciences companies such as Oxford Asymmetry Ltd. (sold to Evotec in 2000), deltaDOT Ltd. London, Glythera Ltd. and DNAmeIT Ltd. Renewing his  acquaintanceship with deltaDOT Ltd. Tony is confident of its future success in life sciences, contract research and CE instrumentation manufacture and marketing.

Paul Vlcek, BA (hons.) FInst.CT, Non-exec Director

Paul VlcekPaul is a British national of Czech origin, studied Electronics Engineering in Czechoslovakia, followed by engineering posts with UK electronics companies in digital and computing technology. Paul is the author of patents in high power energy transfer circuitry and digital control. He has set up a number of his own UK and Czech Republic-based engineering and manufacturing companies (e.g. Zlin Electronics Ltd., Euroelectronics, Cube Cz sro.) which were grown for a successful exit.  He was chairman of the UK Electronics Manufacturers within the PCIF in the early to mid-nineties and is a current Fellow of  the Institute of Circuit Technology. Highly experienced in electronics manufacturing, management and business exit strategies, Paul is also Executive Producer of the music labels Cube-Metier and Cube-Bohemia.

John Hassard, PhD, Non-exec Director

John HassardJohn co-founded deltaDOT with technology originating in the Department of Physics’ High Energy Physics Group at Imperial. He joined Imperial College as a lecturer in 1986 and remains on the faculty. Before Imperial College, John was a research fellow at Harvard University and Cornell University researching heavy quark decays. He was a special advisor to the House of Commons Select Committee for Science and Technology, and he also founded other spin out companies from Imperial College on physics-based technologies. John was Chief Executive Officer of deltaDOT in its early days and also of deltaDOT’s Qatar based sister company deltaDOT-QSTP LLC.

Board – (Executive Directors)

Nigel Stokes, M.Eng MBA, Managing Director

Nigel StokesNigel brings financial and legal expertise to deltaDOT, and has many years’ experience in running and advising SMEs. In addition to his MEng from Imperial College he also holds an MBA from London Business School. Nigel previously worked at deltaDOT from 2001 for several years as Company Secretary and Financial Controller.  In 2006, he set up a company based at Saint Mary’s Hospital which performs a novel form of non-invasive surgery to treat fibroids. The equipment was sold to the National Health Service in 2014 and investors received a 2x return. In 2010, he returned to deltaDOT by arranging a funding round which achieved a change in the management and a complete simplification of the company’s governance structures.

Stuart Hassard, PhD, CSO

Stuart HassardStuart co-founded deltaDOT, contributing his molecular biology expertise. He has a Ph.D. in Molecular Biology from the University of Essex, UK. His post-doctoral position was at the United States Department of Agriculture in their Plum Island Animal Disease Center in New York State, working on Foot-and-Mouth disease. He returned to the UK to work at the Department of Medicine at the University of Cambridge on the packaging signal of HIV-1. In 1999, he moved to the department of Biology in Imperial College London and subsequently to the Institute of Biomedical Engineering as a collaborating investigator. Stuart is also IP director for deltaDOT Ltd. and a member for the BBSRC grants assessment committee.


Gary Taylor, PhD, Head of Analysis

Gary TaylorGary is responsible for the implementation and development of algorithms which power deltaDOT’s instrumentation. He came to deltaDOT after his PhD at Imperial College in the field of High Energy Physics (CP violation in B meson decays). Techniques from high energy particle collisions have been adopted for deltaDOT HPCE used in PEREGRINE l.


Lesley Caldwell, PhD, Research Scientist

Lesley Caldwell

Lesley came to deltaDOT after completing her undergraduate degree in physics at London university. She rejoined recently following the completion of her MPhil and PhD from the University of Cambridge in the field of Biophysics and Neuroscience.



Amy Fenton, BSc (Hons.), Research Scientist

Amy Fenton


Amy joined deltaDOT after completing her undergraduate degree in Bioveterinary Sciences at the Royal Veterinary College in 2018. As well as working with us, she is also studying part time for a Masters by Research at the Royal Veterinary College from 2018-2020, investigating the inflammatory consequences of extracellular vesicles isolated from animal milk.


Angel Cheng, Admin & Translation


Angel is studying for The Bachelor of Veterinary Medicine course at the Royal Veterinary College. She is assisting us on a part-time basis with administrative tasks, and she also handles translation requirements relating to our collaboration with a Chinese company.