Microplastics have been mapped deep within the tissue of living organisms in fine detail for the first time, in a new study led by UCL researchers. The study, published in Advanced Science , shows that non-invasive methods can be used to detect microplastics deep in the living tissue of mice. Previously, this was possible only through dissection. Researchers from UCL, Kingston University and the University of Birmingham detected common microplastics such as polypropylene (used in food