Homogeneous vs. heterogeneous photo-Fenton elimination of antibiotic-resistant bacteria bearing intracellular or extracellular resistance: Do resistance mechanisms interfere with disinfection pathways?
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The power of two! A natural product hybrid (see structure) composed of a siderophore and an antibiotic separated by a poly(ethylene glycol) linker enables the preparation of antimicrobial and cell-resistant surfaces by a simple dip-and-rinse procedure. The ...
Metallo-β-lactamases (MβLs) constitute an increasingly serious clinical threat by giving rise to β-lactam antibiotic resistance. They accommodate in their catalytic pocket one or two zinc ions, which are responsible for the hydrolysis of β-lactams. Recent ...
Antibiotics are substances commonly consumed by the population under medical prescriptions. These compounds may reach the environment through human excretion as they are partially eliminated in WWTPs. The occurrence of antibiotics in the aquatic environmen ...
Exposure of a bacterial culture to an antibiotic or other lethal stress typically results in the generation of sub-populations of live cells ("persisters") and dead cells, and, in some cases, viable but non-culturable cells. Studies aimed at understanding ...
Review with 199 refs. Recent studies addressing vancomycin-resistance phenomena are surveyed. Besides leading semi-synthetic glycopeptides: BI-397 and LY 333328, other new synthetic derivs. are also presented. Rational design based on the known mode of act ...
All but one of the four major mechanisms of resistance to antimicrobial agents-inactivation of the drug, altered cell wall permeability or drug efflux, drug titration due to target overproduction, and alteration of the target by mutation-appear to be emplo ...
Phenotypic heterogeneity, defined as metastable variation in cellular parameters generated by epigenetic mechanisms, is crucial for the persistence of bacterial populations under fluctuating selective pressures. Diversity ensures that some individuals will ...
Objectives To develop a high throughput screening-compatible assay for the selection of species-specific antibiotics that do not harm human cells. Methods Staphylococcus aureus and human reporter cells continuously generating a fluorescence signal were com ...
Cultivation-independent microbial molecular ecology approaches were used to examine the effects of antibiotic growth promoters on the pig ileal microbiota. Five-week-old barrows were fitted with a simple T-cannula at the distal ileum. Three diets meeting o ...
