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Chemical Gases: Ethylene Oxide, Ozone, & Formaldehyde definitions

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  • Ethylene Oxide
    A highly penetrative, flammable, and carcinogenic gas sterilizer effective against all microbes, including endospores, requiring specialized chambers for safe use.
  • Sterilization
    A process that eliminates all forms of microbial life, including endospores, often achieved using chemical gases in controlled environments.
  • Endospore
    A highly resistant microbial structure that survives extreme conditions and is targeted by potent sterilizing agents like ethylene oxide.
  • Carcinogen
    A substance capable of contributing to cancer development, necessitating careful handling and removal after sterilization procedures.
  • Formaldehyde
    A colorless, strong-smelling aldehyde used as a gas or in solution to control microbes by causing protein-DNA cross-linking.
  • Formalin
    A 37% aqueous solution of formaldehyde, used for microbial control by damaging DNA and denaturing proteins.
  • Protein-DNA Cross-Linking
    A chemical process where proteins are covalently bonded to DNA, disrupting cellular function and leading to microbe destruction.
  • Denaturation
    A structural alteration of proteins, often caused by chemicals like formaldehyde, resulting in loss of biological activity.
  • Ozone
    An unstable, highly reactive O3 molecule acting as a strong oxidizing agent, used for disinfection and cell lysis.
  • Oxidizing Agent
    A chemical that induces oxidation in other molecules, often leading to microbial cell damage or death.
  • Free Radical
    A highly reactive molecule formed during ozone exposure, capable of causing cell lysis by damaging cellular components.
  • Cell Lysis
    The rupture and destruction of a cell, often resulting from exposure to reactive chemicals like ozone.
  • Ozone Generator
    A device that produces ozone on-site due to its rapid decomposition, enabling immediate use for microbial control.
  • Atmospheric Protection
    A role played by ozone in shielding living organisms from harmful ultraviolet light from the sun.
  • Disinfection
    A process that reduces or eliminates pathogenic microbes, often using chemical agents like ozone or formaldehyde.