November 21st 2024
The companies will collaborate to create and test circVec DNA–LNP formulations for use in potential therapeutic applications.
Preparation and Characterization of Meloxicam–Myrj-52 Granules Obtained by Melt Granulation
December 2nd 2007Various manufacturing techniques can improve a drug's solubility, thus increasing its bioavailability. The authors examined whether melt granulation can enhance drug solubility using meloxicam as the drug substance and myrj-52 as the binder.
What's Next In: Solid-Dosage Formulation
December 2nd 2007Individualized dosing for specific patient needs has been the goal of medical and pharmacotherapy specialists since they first envisioned pharmacogenetic evaluation. With the measurement of individual levels of metabolism, the optimum dose can be calculated for each individual patient.
The Disintegration and Dissolution of Nabumetone Dispersible Tablets
December 2nd 2007The authors analyzed the effects of complexation as well as the levels of ammonium bicarbonate and crospovidone on tablet wetting time (WT), disintegration time (DT), and percent dissolution efficiency at 60 min (%DE60).
Enhancing Topical Delivery Using Prodrugs
December 1st 2007The permeation of drugs through the skin is compromised by the presence of polar functional groups such as thiols, alcohols, phenols, imides or amides. By transiently masking these polar functional groups as prodrugs the permeability of drugs containing these functional groups through the skin can be improved.
Topical delivery of oily actives using solid lipid particles
December 1st 2007Lipid-based drug delivery systems - such as liposomes, micro-and nanoemulsions, self-emulsified drug delivery systems, and solid lipid micro-and nanoparticles - are becoming more popular because lipid materials are easily characterized, contain a high range of well-defined/tolerated surfactant molecules and can be developed for several administration routes.
Monitoring processing-induced crystallinity changes
November 1st 2007The crystalline structure of pharmaceutical solids can sometimes be altered during processing. X-ray powder diffraction and near infrared spectroscopy can be used to determine the amorphous and crystalline content of a model substance. The two techniques' precision, accuracy, detection limit and the speed of analysis are compared.
Strategy for the Prediction and Selection of Drug Substance Salt Forms
October 2nd 2007Through consideration of the ionic equilibria of acids and bases, one may readily calculate the formation constant of a salt species solely on the basis of knowledge of the pKA value of the acid and the pKB value of the base.
Making light work of digital imaging
October 1st 2007In the biological arena, new and highly useful fluorescent markers are used to stain or 'label' specific structures of interest. They have transformed the range and applicability for optical observation. These labels are excited and correspondingly emit at specific wavelengths; thus, different facets of a specimen can be 'selected' by controlling the wavelength of the delivered and captured light. For example, labels such as 4',6-diamidino-2-phenylindole (DAPI) are used to highlight the nucleus of a cell and MitoTracker Orange is used for mitochondria. Figure 1 shows an example of a multiple stained section, viewed in fluorescence. There has been an explosion in fluorescent labels for examining biological structures, in fixed and live cell preparations.