Germ-Killing Surfaces

The problem with insects, especially in warm summer-like environments, has drawn the attention of product designers for many years. Many products are available, marketed especially to hikers, campers, and backpackers. While effective to varying extents, these products often have to be appUed to the skin as liquids and have a distinctive odor, often not appealing to the person being protected. 

A product, in the form of a wristband, called Bug Off has been developed by the Stinger Division of Kaz, Inc., New York, NY. For 180 hr, this product gradually emits an aroma that 

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Antimicrobial agents 17 Infection-free medical PO surfaces, germ- and odor-free consumer POs New agents and options for killing or repelling organisms... 

A second t) e of white cell, the pol5unorphonuclear leukocyte (PMNL) is more common than the macrophage and makes up 60% of all white blood cells. These cells are attracted to sites of infection by the chemicals that are released by invading bacteria. Special cells, known as B l3unpho-cytes, produce antibodies that are chemicals that can attach themselves to the surface of various germs thus rendering them ineffective, but any particular antibody can only bind to one bacterium. T cytoxic (killer) cells can kill cells directly. They attacked cells filled with viruses before the virus can reproduce and are involved in the defence of the body against cancer cells. 

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