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Ionizing radiation:

Learn about various sterilization techniques including ionizing radiation, filtration, air and fluid filters, gas sterilization, such as ethylene oxide, and plasma gas sterilizers. Ensure safety and efficiency for healthcare settings.

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Ionizing radiation:

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  1. Sterilization by radiation • Ionizing radiation: • Such as gamma rays emitted from radioactive cobalt 60 or beta rays emitted from electron accelerators. • High penetrating power. • Used for plastic syringes, catheters, gloves, surgical sutures.

  2. Sterilization by filtration Fluid filters • Used for sterilization of biological fluids destroyed by heat such as serum, plasma, vitamins, hormones. • Air is filtered by HEPA filters. • HEPA means high efficiency particulate air way arresters. • Air filtration is needed in operation rooms, safety cabinets. Air filters

  3. Fluid filters • Vacuum or Seitz filter: • Formed of asbestos disc which is inserted into a metal holder connected to a flask.

  4. Sterilization by gases Ethylene oxide gas • Used for plastic and rubber articles. • Ethylene oxide gas is toxic, explosive and carcinogenic to laboratory animals. • Plasma means any gas which is formed of ions, electrons, neutral particles. • Used for surgical instruments mainly those with narrow lumen such as arthroscopes & laparoscopes. • Non toxic. Plasma gas sterilizer

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