 The participating research groups are based mainly at Imperial College London, King's College London, Queen Mary University of London (QMUL) and University College London (UCL), but there are also members at the National Physical Laboratory in Teddington.The aims of the TYC are to foster collaboration between TSM research groups in London, to provide a world-class source of graduate education in the field, and to address problems of major importance to industry and society.The current (2009) membership of TYC numbers about 80 research groups, of which six are led by Fellows of the Royal Society.