Improvements in the Cylinder-Plate Method for Penicillin Assay

The biological assay of penicillin by a modified plate method.

A method for the assay of penicillin.

A Microtiter Plate-Based Assay for Inhibitors of Penicillin-Binding

PBP2a, the molecular determinant for high level β-lactam resistance in 19 Methicillin-resistant Staphylococcus aureus (MRSA), is intrinsically resistant to most β20 lactam antibiotics. The development and characterization of new inhibitors targeting 21 PBP2a would benefit from an effective and convenient assay for inhibitor binding. This 22 study was directed towards the development of a fluore...

Large-plate method for the assay of neomycin in serum.

A large-plate method employing radial diffusion from small paper discs for assaying serum levels of neomycin is described. More than 120 discs placed on a loading plate and loaded with 20 muliters of sample could all be brought into contact with the agar plate at one time. The requirement for elaborate statistical design to compensate for time-dependent bias was thus eliminated. The dose-respon...

Blanket Cylinder Impression Cylinder Printing Plate Cylinder Moistening Roller