Microscopy Overview - Concepedia

Principles

Definition

Microscopy is the scientific methodology employing microscopes for the visualization and investigation of structures and specimens at a scale beyond the resolution of the unaided eye, serving as a fundamental tool across diverse scientific disciplines.

Ontological type

Imaging Modalities

Optical Principles

Scientific Applications

Key developments

Key Figures

Ultrastructure Standardization era

Fritiof S. Sjöstrand [1] was associated with the Massachusetts Institute of Technology [3] and the Karolinska Institutet [4] during the Ultrastructure Standardization era. His electron microscopy work, including the 1953 study Electron Microscopy of Mitochondria and Cytoplasmic Double Membranes: Ultra-Structure of Rod-shaped Mitochondria [7], advanced visualization of mitochondrial and cytoplasmic ultrastructure and helped anchor standardized imaging approaches for preserving and interpreting organelle membranes. Keith R. Porter [2] had affiliations with Rockefeller University [5] and Harvard University [6] during the same era. His 1954 Electron Microscopy of Basophilic Components of Cytoplasm [8] contributed to mapping cytoplasmic organization and to the standardization of cytochemical staining and embedding methods, enabling more reliable interpretation of intracellular components.

Nanoscale Multimodal Integration era

C. F. Quate [1], associated with Stanford University [3] and University of Nevada, Reno [4] during the nanoscale multimodal integration era, helped catalyze the convergence of scanning-probe and optical nanoscale imaging. His key contributions include the 1986 Atomic Force Microscope [7], the 1990 Microfabrication of cantilever styli for the atomic force microscope [8], and the 1986 Imaging in real time with the tunneling microscope [9], which collectively established quantitative nanoscale topography, mechanical measurements, and real-time imaging as core capabilities of multimodal nanoscale characterization. Watt W. Webb [2], affiliated with Harvard University [5] and the Massachusetts Institute of Technology [6], contributed to nanoscale multimodal imaging through optical modalities. His 1990 Two-Photon Laser Scanning Fluorescence Microscopy [10] demonstrated deep-tissue compatible, reduced-photodamage imaging that underpins the integrated multimodal paradigm of nanoscopy.

Computationally Enhanced Microscopy era

David A. Agard [1] is a prominent figure associated with University of California, San Francisco [3] and Goethe University Frankfurt [4] during the Computationally Enhanced Microscopy era. His key contributions include MotionCor2: anisotropic correction of beam-induced motion for improved cryo-electron microscopy [7], and Three-Dimensional Resolution Doubling in Wide-Field Fluorescence Microscopy by Structured Illumination [8], which advanced resolution and throughput in this era. X. Sunney Xie [2] is a leader at Harvard University [5] and Richland College [6] during this era. His contributions include label-free biomedical imaging with high sensitivity by stimulated Raman scattering microscopy [9], chemical imaging of tissue in vivo with video-rate coherent anti-Stokes Raman scattering microscopy [10], and rapid intraoperative histology of unprocessed surgical specimens via fibre-laser-based stimulated Raman scattering microscopy [11], which advanced real-time chemical imaging and translational potential.