Bioengineer developing needle-free "nanopatch" vaccines

LONDON (Reuters) – When it comes to protecting millions of people from deadly infectious diseases, Mark Kendall thinks a fingertip-sized patch covered in thousands of vaccine-coated microscopic spikes is the future. A biomedical engineer with a fascination for problem solving, he has developed the so-called "nanopatch" to try to transform delivery of life-saving vaccines against potential killers like flu and the HPV virus that causes cervical cancer. …