This episode of the Physics World Weekly podcast features interviews with the chief executive of a UK-based medical start-up and the new president of the Australian Institute of Physics.

First up is Alasdair Price of the medical-imaging company Siloton, which is using photonic integrated circuits to develop a portable imaging system that can monitor the progression of eye diseases such as age-related macular degeneration.

He is followed by the theoretical physicist Nicole Bell of the University of Melbourne who talks about her research into dark matter and other aspects of her work at the intersection of particle physics, astrophysics and cosmology. She also chats about her recent appointment as president of the Australian Institute of Physics and her vision for that organization.