Imagine a microscope that doesn't just take optical images, but also magnetic resonance images of individual cells that reveal their underlying molecular composition without altering them in any way. My lab is developing a new type of magnetic resonance sensor, based on laser interrogation of diamond nanostructures, to detect the type and behavior of complex molecules in their natural environment. The tool will be applied to the rapid analysis of proteins and metabolites in cell systems biology as well as for diagnosis and fundamental studies of malaria through its magnetic signatures.