Kelvin Anggara is an assistant professor in the Department of Chemistry at Hong Kong University of Science and Technology. He is interested in developing scanning probe microscopy operated at cryogenic temperatures (about 10 K) to determine the structures of molecules and macromolecules on surfaces. His group achieves this by combining electrospray ion beam deposition with scanning probe microscopy, supported by ab initio calculations, to deposit and visualise mass-selected single molecules on surfaces. This approach allows their structures to be determined one molecule at a time.