The subject of reusing single-use devices (SUDs) is one that has been discussed, debated, dissected, promoted, and damned seemingly forever. I have been attending conferences and professional and scientific meetings that discussed the pros and cons of reusing SUDs for more than 25 years and, until recently, it was the same story. Those who favored, and indeed practiced, reusing SUDs pointed out...

Chlorhexidine gluconate is a bisguanide germicide currently available with 70% isopropanol (Hibistat, Hibitane) or a detergent (Hibiclens, Hibiscrub) for preoperative skin preparation. As these solvents are toxic to the cornea, we investigated the safety and efficacy of aqueous chlorhexidine solutions for ophthalmic use. Chlorhexidine in Tris-glycine buffer was evaluated for retardation of epit...

Clean food 161 on ‘clean’ glasses. Whisky and wine glasses were found to be less contaminated, Beer and overflow beer were also examined with results which were not entirely satisfactory. Undiluted overspill beer languishing in its tray until it can be dealt with may contain washings off the bar tenders’ fingers and will not improve any fresh beer with which it is eventually mixed. Coliforms we...

BACKGROUND To prevent cross-infection of patients, semicritical devices must be high-level disinfected by a product capable of destroying mycobacteria. Glutaraldehyde is commonly used; however, recent studies showed that glutaraldehyde-resistant mycobacteria could survive treatment with this chemical for extended exposure times. Our study tested hydrogen peroxide, peracetic acid, and a germicid...

the removal of organic precursors of disinfection by-products (dbps), i.e. natural organic matter (nom), prior to disinfection is considered as the most effective approach to minimise the formation of dbps. trihalomethanes (thms) as the main group of dbps are categorized and considered to have the potentiality of increasing the rate of liver, kidney and cns adverse effects. this study which pre...

photocatalytic degradation of toxic organic compound in water, soil and air by semiconductor catalysts such as tio2 and zno have received much attention over the last two decades. however, the low quantum yield, easy agglomeration and difficult post-separation of these inorganic catalysts limit their application for large-scale applications. metal-organic frameworks (mofs) are the latest class ...

polyvinylpyrrolidone  /  nickel  oxide  (pvp/nio)  dielectrics  were fabricated  with  sol-gel  method  using  0.2  g  of  pvp  at  different working  temperatures  of  80,  150  and  200  ºc.  structural  properties and surface morphology of the hybrid films were investigated by x-ray  diffraction  (xrd)  and  scanning  electron microscope  (sem) respectively. energy dispersive x-ray spectrosc...

The issue of whether low-level tolerance to germicides selects for antibiotic-resistant strains is unsettled but might depend on the mechanism by which tolerance is attained. For example, changes in the permeability barrier or efflux mechanisms might affect susceptibility to both antibiotics and germicides, but specific changes to a target site might not. Some researchers have suggested that us...

immidiate managementinfants and children with acute metabolic crisis require immediate treatment to prevent further acute deterioration and long-term sequelae.early and appropriate treatment before confirmation of the diagnosis is life-saving.eliminate intake of the precursors of possibly toxic metabolites.this applies most often to suspected inborn errors of amino acid or organic acid metaboli...

The important part that fleas acd flies and mosquitoes and other small insects play in the spread of infectious diseases and complaints such as plague, enteric, typhus, malaria and summer diarrhoea is becoming more generally recognised every day ; indeed Sir Lauder Brunton speaks of fleas as a national danger (Tha Lancet, Nov. 9th, 1907), and the destruction of these insects is a problem which ...