By Jake Ryan For The Mail On SundayPublished: 17:00 EDT, 29 May 2021 | Updated: 18:22 EDT, 29 May 2021A Chinese military scientist has been conducting research with a team at Cambridge University on a revolutionary substance discovered in Britain. Dr Junzong Feng, 38, has been working as a ‘visiting fellow’ with Cambridge’s NanoEngineering Group on graphene. An accompanying testimonial credits Dr Feng with ‘17 national invention (defence) patents’ and lists his awards for weapons development. Patents and research papers published in China, however, show he has been working on how aerogels could be used by the military. ‘Our collaborations with researchers in China allow us to mutually share expertise, but do not involve research that has direct military application.