Imaging of sub-cellular structures and organelles by an STM-assisted Scanning Microwave Microscope at mm-Waves

Recently, near-field scanning microwave microscope has become popular in the characterization of materials, in particular, semiconductors on the nanometer scale. However, its application to biological structures is still at the embryo stage due to challenges in probing wet and soft samples with little dielectric contrast. In this work, we used our homemade scanning microwave microscope to overcome some of the challenges to demonstrate the imaging and characterization of isolated mitochondria in the frequency range 28-33 GHz.