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Holotomographic Microscopy utilize optical diffraction tomography (ODT), which enables users to quantitatively and noninvasively investigate biological cells and thin tissues.

ODT reconstructs the 3D refractive index (RI) distributions of live cells and by doing so, provides structural and chemical information about the cell including dry mass, morphology, and dynamics of the cellular membrane.

When paired with traditional florescence imaging, quantitative data obtained from the ODT can be extracted and correlated with fluorescence markers.

Useful applications: Infectious disease, drug discovery, microbiology, cell biology, nanobiotechnology.


  1. Kim, Y. S., Lee, S., Jung, J., Shin, S., Choi, H. G., Cha, G. H., ... & Park, Y. (2018). Focus: Medical Technology: Combining Three-Dimensional Quantitative Phase Imaging and Fluorescence Microscopy for the Study of Cell Pathophysiology. The Yale Journal of Biology and Medicine, 91(3), 267.
  2. Lee, S., Jang, S., & Park, Y. (2019). Measuring three-dimensional dynamics of platelet activation using 3-D quantitative phase imaging. BioRxiv, 827436.
  3. Oh, J., Ryu, J. S., Lee, M., Jung, J., yun Han, S., Chung, H. J., & Park, Y. (2019). Three-dimensional label-free observation of individual bacteria upon antibiotic treatment using optical diffraction tomography. BioRxiv, 775346.
  4. Park, S., Ahn, J. W., Jo, Y., Kang, H. Y., Kim, H. J., Cheon, Y., ... & Park, K. (2020). Label-Free Tomographic Imaging of Lipid Droplets in Foam Cells for Machine-Learning-Assisted Therapeutic Evaluation of Targeted Nanodrugs. ACS nano.

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