Outer membrane permeation of Bacteroides fragilis by cephalosporins

Porin channels in Escherichia coli: studies with beta-lactams in intact cells

1983 • 370 citations

Diffusion of beta-lactam antibiotics through the porin channels of Escherichia coli K-12

1985 • 338 citations

Function of the Outer Membrane of Escherichia coli as a Permeability Barrier to Beta-Lactam Antibiotics

1977 • 321 citations

Ionic selectivity of pores formed by the matrix protein (porin) of Escherichia coli

1979 • 293 citations

Micro-iodometric assay for penicillinase

1962 • 292 citations

Properties of novel beta-lactamase produced by Bacteroides fragilis

1983 • 113 citations

Factors Contributing to Resistance to Beta-Lactam Antibiotics in Bacteroides fragilis

1979 • 59 citations

Identification of porins in outer membrane of Proteus, Morganella, and Providencia spp. and their role in outer membrane permeation of beta-lactams

1987 • 49 citations

Susceptibility to beta-lactam antibiotics and production of beta-lactamase inBacteroides fragilis

1977 • 38 citations

A method for measuring the outer membrane-permeability of .BETA.-lactam antibiotics in gram-negative bacteria.

1977 • 34 citations

Difference in pathway of Escherichia coli outer membrane permeation between penicillins and cephalosporins

1985 • 26 citations

Cephamycin inactivation due to enzymatic hydrolysis by beta-lactamase from Bacteroides fragilis

1985 • 12 citations

The role of β-lactamase and the permeability barrier on the activity of cephalosporins against members of the Bacteroides fragilis group

1987 • 12 citations