Alan B. G. Lansdown40 years research into the biology and pathology of the skin and its response to injury. Research into the nutrition and physiology of trace and xenbiotic metals in the skin. Study of intrinsic cytoprotective mechanisms against metal toxicity. Speial studies onthe biological value of silver in wound care and as an antimicrobial agent in medical devices. International consultant and lecturer. Published 250 scientific papers and book chapters. Read More Read Less