Michael Wieser

My research objective is to explore the interactions of metals in living and non-living systems by studying changes in the isotopic compositions of biochemically significant elements. Subtle but significant variations in the isotopic compositions of such elements are often clues to the processes that affect the biogeochemical cycling of the atoms. I am working towards developing an understanding of the significance of these elements at the interface between the geosphere and biosphere through the development and application of insightful and reliable mass spectrometric analytical tools.

I am a member of TRIUMF’s Ion Trap for Atomic and Nuclear science (TITAN) collaboration at the TRIUMF particle accelerator in Vancouver, BC. The TITAN facility is a platform for research into the physics of exotic nuclei, with applications in nuclear physics, astrophysics, and laser spectroscopy. As a member of the collaboration, I contribute my knowledge of metrology, ion sources, and methods and applications of precision isotope abundance studies.  At present, one significant activity is the development of a laser-based ion source that can be interfaced to the mass analyzer that will enable high spatial resolution of organic and inorganic materials.  While still at a very early stage, the goal of this technology is to enable unparalleled sensitivity in the identification of specific isotopes and will open new frontiers of research and investigation in the health sciences.

I work with the Commission on Isotopic Abundances and Atomic Weights, a standing committee under the auspices of the International Union of Pure and Applied Chemistry.  This Commission, under the International Union of Pure and Applied Chemistry, is the world’s oldest continuously serving scientific body. Established in 1899, the Commission is comprised of the world’s leading experts on isotopic abundance measurements and is responsible for the evaluation and dissemination of atomic weight and isotope abundance data for use in scientific research, education, and industry.

I began my career as a tenured faculty member at the University of Calgary in 1999 where, with my research group, I operate a mass spectrometry facility and clean room laboratory.