Aim: The aim of this study was to write review on stability studies of extemporaneous preparations. Materials and methods: Different methods are used for checking stability studies, depending on the nature of the preparations, like visual inspection, pH checking, different temperature storage, and HPLC. Results: It was found that the stability concern with the pharmaceutical suspensions include...

The yield of bacteriophage 643 was increased by infecting cultures of Streptococcus lactis ML3 in late-log phase growth, harvesting the infected cells, and suspending them in fresh, phosphate-buffered minimal medium. The cells lysed after this treatment and produced high titers of bacteriophage. The phage particles were dissociated from debris by 2 M NaCl and purified by differential and CsCl b...

The membrane potential of guinea-pig spermatozoa was investigated by using the fluorescent dye, diS-C3-(5). The potential did not vary when K replaced Na in the suspending medium, and in a physiological salt solution the resting potential was found to be about +13 mV.

Self-retaining barbed sutures, innovations for nonsurgical facial and neck rejuvenation, are currently available as short APTOS threads or long WOFFLES threads. The author uses APTOS threads for malar rounding, facial tightening and firming, and uses WOFFLES threads as a sling, suspending ptotic facial tissues to the firm, dense tissues of the temporal scalp.

Thin gels (<I mm) can be loaded conveniently, rapidly, and quantitatively by suspending the sample to be analyzed in a drop of agarose gel and simply placing the solidified drop on top of the stacking gel. With this method there is no lower limit to the size of the sample to be loaded or to the thinness of the gel to be employed. Using the silver stain quantitation of between 1 and 1000 @ample ...

The persistence of A. butzleri CCUG 30484 on various surfaces under 32% and 64% relative humidity suspended in physiological saline or nutrient broth to simulate relatively clean or soiled conditions was studied using various isolation techniques. Our study revealed that A. butzleri CCUG 30484 cells were able to survive for a considerable period of time, even after the droplet of suspending med...

The use of sucrose solutions as suspending media for preparation of tissue homogenates and subsequent centrifugal fractionation has become a widely accepted procedure. Recently, it has been claimed that addition of colloids to the medium results in better preservation of the morphological and enzymic integrity of the isolated fractions (4, 8, 15). Such media also have valuable applications duri...