Cell-selective metabolic labeling of proteins with noncanonical amino acids enables the study of proteomic changes in specified subpopulations of complex multicellular systems. For example, azidonorleucine (Anl) and 2-aminooctynoic acid, both of which are activated by an engineered methionyl-tRNA synthetase (designated NLL-MetRS), are excluded from proteins made in wild-type cells but incorpora...

A system for the isolation of anaerobes based upon the use of reducible solid media is described. Plates of reducible media prepared and stored aerobically were reduced before use by incubation in a GasPak jar for 24 h. Clinical specimens for culture were carefully selected. The value of Amies transport medium was confirmed. Selective and nonselective formulations of reducible media were used f...

The fi(+) and fi(-) R factors are unstable in Vibrio cholerae even on selective media containing antibiotics, although a temperature-sensitive kanamycin resistance factor and its recombinants are stably maintained in V. cholerae at low temperatures.

Hematopoietic and nonhematopoietic cell lines cultured in media containing either 5-methyltetrahydrofolate or 5-formyltetrahydrofolate grow well to the same extent. However, when these same cell lines are grown in the presence of nitrous oxide, selective growth inhibition can be shown for hematopoietic cells cultured in 5-methyltetrahydrofolate-containing media. These cells also demonstrated a ...

Single-walled carbon nanotubes (SWCNTs) were suspended in aqueous media with cucurbit[7]uril (CB7), while SWCNTs were insoluble with cucurbit[5]uril (CB5). Moreover, defection-selective solubilization of SWCNTs with CB7 was demonstrated.

The indication of H(2)S production by a modified Tergitol-7 agar combines the advantages of both selective and differential enteric media to provide a medium with broader coverage.

A rapid, in situ thermonuclease test that identifies colonies of Staphylococcus aureus among staphylococci isolated from swimming pool water by membrane filtration recovery on various selective and differential media is described.

This study examines whether disconnective practices on social media such as unfriending could constitute a form of selective avoidance and investigates its boundary conditions. To do so, we w...