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All Posts By

Kevin Hughes

The light digital microscope can be used to visualize structures as small as ~1 micron
Lab Basics
May 27, 2019

Fluorescence Microscopy

Introduction Fluorescence microscopy is a specialized type of light microscopy that relies on the phenomena of fluorescence or phosphorescence. These terms describe materials that absorb light (photons) of one wavelength, then re-emit light of a second, longer wavelength. The difference between fluorescence and phosphorescence is that the latter lasts much…
The light digital microscope can be used to visualize structures as small as ~1 micron
Lab Basics
May 24, 2019

Scanning Tunneling Microscope

Introduction Scanning Tunneling Microscopy, or STM, is a scanning probe technique. This means that the specimen is imaged by scanning a very sharp tip over its surface, while information about the shape or composition of the surface is collected based on interactions between the tip and the sample. This is…
The light digital microscope can be used to visualize structures as small as ~1 micron
Lab Basics
April 28, 2019

The Light Microscope: Application Examples

Introduction The optical or light microscope is very well-suited for the imaging of biological specimens, for three main reasons: The resolution of the light microscope is close to or below the length scale of the structures of interest in biology. Microscopy does not require significant perturbation of the specimen. The…

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