Seiju Ishikawa

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AIMS In order to clarify the involvement of an energy-yielding system in the antibacterial action of surfactants, the effects of carbon source and anaerobiosis during the growth period on the surfactant sensitivity of Escherichia coli cells were investigated. METHODS AND RESULTS Cetyltrimethylammonium bromide (CTAB) and N-dodecyl-N,N-dimethylglycine, at(More)
AIMS In order to investigate the mechanism of bacterial resistance to surfactants, a spontaneous mutant of Escherichia coli, OW66, resistant to a cationic surfactant cetyltrimethylammonium bromide (CTAB), was isolated and its physiological properties analysed. METHODS AND RESULTS Strain OW66 grew in M9 medium containing CTAB at 45 micromol l(-1), whereas(More)
Storage of jaws in cold saline for up to 32 h did not cause significant changes in the ultimate loads required to extract the rat mandibular first molar. The mean ultimate loads were 33.05, 34.91 and 36.38 newtons at the extension rates 1, 5 and 25 mm/min respectively, though the differences were not significant between groups. The force required to extract(More)