Related Experiment Video

Updated: Jun 17, 2026

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
11:57

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Published on: May 20, 2013

Differential light scattering: a physical method for identifying living bacterial cells

P J Wyatt

    Applied Optics
    |January 14, 2010
    PubMed

    More Related Videos

    Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy09:16

    Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

    Published on: January 9, 2017

    Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy (DHM)07:27

    Quantifying Microorganisms at Low Concentrations Using Digital Holographic Microscopy (DHM)

    Published on: November 1, 2017

    Related Concept Videos

    Differential Staining Technique01:26

    Differential Staining Technique

    Differential staining is an essential microbiological technique that exploits variations in cell wall structures to classify and identify microorganisms. It facilitates the distinction of bacteria, aiding in diagnostic and research applications. Two of the most widely used differential staining methods are Gram staining and acid-fast staining, both of which rely on the chemical and structural differences in bacterial cell walls.Gram Staining TechniqueGram staining differentiates bacteria by...
    Methods to Assess Microbial Populations01:30

    Methods to Assess Microbial Populations

    Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...
    Methods of Classification and Identification01:28

    Methods of Classification and Identification

    Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
    Microbial Growth Measurement: Indirect Methods01:27

    Microbial Growth Measurement: Indirect Methods

    Estimating microbial growth is essential for understanding population dynamics and environmental adaptations. Indirect methods provide valuable insights by measuring parameters such as turbidity, metabolic activity, and biomass, enabling efficient and reproducible assessments.During exponential growth, microbial cells scatter light proportionally to their biomass, a principle used in turbidity measurements. About one million cells per milliliter produce detectable scattering, which a...
    Three-Dimensional Microscopy in Microbiology01:28

    Three-Dimensional Microscopy in Microbiology

    Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...
    Special Staining Techniques01:13

    Special Staining Techniques

    Specialized staining techniques play a vital role in microbiology by enabling the visualization of specific bacterial structures that remain undetectable with standard microscopy methods. These techniques not only enhance the structural visualization of bacterial cells but also provide critical insights into their pathogenicity and classification. Additionally, they support diagnostic and research endeavors in microbiology by identifying key bacterial features.Capsule Staining for Virulence...