Fysische Methoden voor het Beheersen van Microbiële Groei: Straling en Filtratie

Radiation kills or inhibits the growth of microorganisms.

Safety cabinets use non-ionizing UV radiation, which damages DNA and disinfects surfaces, air, and water, but its limited penetration prevents it from disinfecting bulk items like canned foods.

Ionizing radiation, such as X-rays and gamma rays, penetrates deeply, destroying endospores, sterilizing antibiotics, hospital supplies, and food.

Cold plasma, the fourth state of matter that emits UV rays, has emerged as a powerful antimicrobial agent used to sterilize medical devices and preserve food.

Filtration removes most microbes and is used to sterilize heat-sensitive liquids and gases.

Membrane filters with 0.2 μm pores, made of cellulose esters or plastic polymers, remove most microbes and sterilize culture media, vaccines, and antibiotics.

Depth filters, such as HEPA filters used in safety cabinets, operating rooms, and burn units, trap 99.97% of particles, including viruses, within their porous matrix.

Similarly, N95 masks block 95% of airborne particles above 0.3 μm.