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    A bacteriocide or bactericide is a substance that kills bacteria and, preferably, nothing else.

    Bactericides are either disinfectants, antiseptics or antibiotics.

    The most used bactericidal disinfectants are those applying

      properly concentrated strong acids (phosphoric, nitric, sulfuric, amidosulfuric, toluenesulfonic acids) and
      alcalis (sodium, potassium, calcium hydroxides),
      such as of pH < 1 or > 13, particulary under elevated temperature (above 60°C), kills bacteria.

    As antiseptics (i.e., germicide agents that can be used on human or animal body, skin, mucoses, wounds and the like), few of the above mentioned disinfectants can be used, under proper conditions (mainly concentration, pH, temperature and toxicity toward man/animal). Among them, important are some

      properly diluted chlorine preparations (f.e. Daquin's solution, 0.5% sodium or potassium hypochlorite solution, pH-adjusted to pH 7 - 8, or 0.5 - 1% solution of sodium benzenesulfochloramide (chloramine B)), some
      peroxides as urea perhydrate solutions and pH-buffered 0.1 - 0.25% peracetic acid solutions,
      alcohols with or without antiseptic additives, used mainly for skin antisepsis,
    Others are generally not applicable as safe antiseptics, either because of their corrosive or toxic nature.

    Bacteriocidal antibiotics kill bacteria; bacteriostatic antibiotics only slow their growth or reproduction.

    Penicillin is a bactericide, as are cephalosporins.
    Aminoglycosidic antibiotics can act in both a bactericidic manner (by disrupting cell wall precursor leading to lysis) or bacteriostatic manner (by binding to 30s ribosomal subunit and reducing translation fidelity leading to inaccurate protein synthesis)

    Other bactericidal antibiotics include the fluoroquinolones, nitrofurans, vancomycin, monobactams, co-trimoxazole, and metronidazole.







        Bacteriocide
     
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    Scientus.org Dictionary (Yet Another Wiki) RC : 1.39
    This article is licensed under the GNU Free Documentation License [copyleft]. It uses material from the Wikipedia article "Bacteriocide". link