Due to their well-defined plasmonic properties, gold nanorods (GNRs) can be fabricated with optimal light absorption in the near-infrared region of electromagnetic spectrum, which make them suitable for cancer-related theranostic applications. However, controversial safety profile, as a result surfactant stabilization during synthesis, limits clinical translation. We report facile method improv...

I should like to discuss very briefly the current status of studies in our laboratory of the membrane protein component of the lactose transport system of Escherichia coll. Previous publications (I, 2) have presented evidence that this protein, which can be selectively labeled with radioactive N-ethylmaleimide, is the product of the y gene of the lac operon, the long-sought permease protein. Th...

Nucleotide pyrophosphatase was solubilized from the microsomal fraction of rat liver with Triton X-100 and was purified by ion exchange chromatography on DEAE-cellulose, gel filtration through Sepharose 4B and preparative disc electrophoresis in the presence of 0.1% sodium dodecyl sulfate. This procedure resulted in a final purification of 176-fold. Maintenance of enzymatic activity through the...

A novel neutrophilic metalloprotease was isolated from Pseudomonas sp. DR89 isolate which was identified ina mineral spring in Iran. The enzyme was purified from the isolate to 21-folds in a three-step procedure involving ammonium sulfate precipitation, Q-Sepharose ionic exchange and Sephadex G-100 gel filtrationchromatography. Resuts showed that the enzyme was active at high temper...