Related Experiment Video
Updated: Jul 9, 2026

09:16
Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy
Published on: January 9, 2017
Dynamic light scattering spectroscopy and the Centiloid scale
Jeffrey N Weiss1, Daryl Eber2, Rebel Cole3
1Parkland, FL, USA.
Journal of Alzheimer'S Disease : JAD
|July 8, 2026
Abstract:
Dynamic light scattering (DLS) spectroscopy measures the Brownian movement of particles. Fifteen patients underwent DLS measurement and positron emission tomography amyloid imaging. The DLS measurement is noninvasive, quantitative, and inexpensive, with immediate results. We report a significant correlation between DLS measurements and Centiloid values.
Related Concept Videos
Spectrophotometry: Introduction
Spectrophotometry is the quantitative measurement of the absorption, reflection, diffraction, or transmission of electromagnetic radiation through a material as a function of the intensity and wavelength of the radiation. A spectrophotometer is a device used to measure the change in the radiation intensity caused by its interaction with the material.
The essential components of a spectrophotometer include a source of electromagnetic radiation, a slot for placing a material to be analyzed, and a...
The essential components of a spectrophotometer include a source of electromagnetic radiation, a slot for placing a material to be analyzed, and a...
UV–Vis Spectroscopy: Beer–Lambert Law
The Beer-Lambert law describes the relationship between absorbance and concentration, which combines the principles established by scientists Johann Heinrich Lambert and August Beer. Lambert's law states that when light passes through a medium, the loss in intensity is directly proportional to the original intensity and the path length of the light. Beer's law proposed that the transmittance of a solution remains constant if the product of concentration and path length is constant. The modern...

