Related Experiment Video

Updated: Aug 14, 2026

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms
05:57

The Synergistic Effect of Visible Light and Gentamycin on Pseudomona aeruginosa Microorganisms

Published on: July 2, 2013

Mechanism of lethal action of 2,450-MHz radiation on microorganisms

G R Vela, J F Wu

    Applied and Environmental Microbiology
    |March 1, 1979
    PubMed

    More Related Videos

    Inactivation of Pathogens via Visible-Light Photolysis of Riboflavin-5′-Phosphate08:25

    Inactivation of Pathogens via Visible-Light Photolysis of Riboflavin-5′-Phosphate

    Published on: April 6, 2022

    Light-Induced In Situ Transmission Electron Microscopy for Observation of the Liquid-Soft Matter Interaction05:33

    Light-Induced In Situ Transmission Electron Microscopy for Observation of the Liquid-Soft Matter Interaction

    Published on: July 26, 2022

    Related Concept Videos

    Biological Effects of Radiation02:59

    Biological Effects of Radiation

    All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
    Methods of Sterilization I: Physical Methods01:29

    Methods of Sterilization I: Physical Methods

    As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation.
    Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
    Physical Methods for Controlling Microbial Growth: Temperature01:23

    Physical Methods for Controlling Microbial Growth: Temperature

    Heat is a widely used method to control microbial growth by targeting and denaturing cellular proteins, thereby killing or inactivating microbes. This method's effectiveness is quantified using parameters such as the thermal death point (TDP), thermal death time (TDT), and decimal reduction time (D value). TDP represents the lowest temperature at which all microorganisms in a liquid suspension are eliminated within 10 minutes, whereas TDT is the time necessary to achieve sterilization at a...
    Physical Methods for Controlling Microbial Growth: Radiation and Filtration01:26

    Physical Methods for Controlling Microbial Growth: Radiation and Filtration

    Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
    Chemical Agents for Microbial Control01:27

    Chemical Agents for Microbial Control

    Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
    Other Unique Bacteria01:18

    Other Unique Bacteria

    Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic and are commonly found near the...