- Cancer Biology & Biomarkers
- Chromatography & Mass Spectrometry
- Contract Research, Clinical Trials and Outsourcing
- Drug Discovery
- Drug Targets
- Flow Cytometry
- Informatics & Lab Automation
- Ingredients, Excipients and Dosages
- Microbiology & RMMs
- NIR, PAT & QbD
- Raman Spectroscopy
- Screening, Assays & High-Content Analysis
- Thermal Processing
University of Greenwich - Articles and news items
Thermally Stimulated Current Spectroscopy (TSC) is a new tool that can be used to analyse pharmaceutically important molecules. TSC studies are usually conducted to provide additional information about molecular mobility in the solid state, and as a result characterise phase transitions that are related to thermal transitions in the crystalline (polymorphic) and amorphous phases. The ability of TSC to probe molecular mobilities, previously undetected in materials, and link them to the stability of different phases has sparked immense scientific interest in this technique.
In the last 10 years, the pharmaceutical market has seen a significant decrease in approved new drug entities. Although many factors may be responsible for this trend, one of them is insufficient information / characterisation of a lead molecule. Consequently, new techniques are often applied in the pharmaceutical field with the simple goal to aid better selection of the drug candidate and dosage form.
Improving the performance of existing drug products is another goal that often requires comprehensive information about the properties of the drug molecules. In recent years, the physical sciences have made great progress towards understanding the properties of pharmaceutically important amorphous and polymorphic materials. The major focus of this work is to utilise the advantages that they may bring to formulated products (e.g. faster solubility of amorphous drugs compared to crystalline counterparts) and at the same time to overcome stability problems (e.g. tendency to recrystallise on storage) that they may demonstrate.
A wide and versatile range of analytical techniques are routinely used, indeed are necessary, in pharmaceutical analysis. Over the past decade Raman spectroscopy has increasingly come to the fore as a valuable member of the arsenal of methods used, from both a fundamental and applied perspective, for the interrogation of solid, liquid and solution phase samples. Advances have occurred not only in instrumentation but also in fundamental techniques and applications. The method holds substantial potential for the investigation of, what are normally considered, problematic or challenging areas of analysis. The aforementioned areas include – but are, definitely not limited too reaction kinetics, pharmaceutical drug discovery, detection of counterfeit/adulterated/illegal drugs, trace analysis and uses for on-line pharmaceutical process manufacturing. This, the first of several articles on the use of Raman spectroscopic techniques in pharmaceutical analysis, provides an introductory overview of the theory of the technique.
ABB Analytical Measurement ACD/Labs ADInstruments Ltd Advanced Analytical Technologies GmbH Analytik Jena AG Astell Scientific Ltd B&W Tek Bachem AG Bibby Scientific Limited Bio-Rad Laboratories BioNavis Ltd Biopharma Group Black Swan Analysis Limited Butterworth Laboratories Ltd CAPSUGEL NV Charles Ischi AG | Kraemer Elektronik Cherwell Laboratories CI Precision Cobalt Light Systems Coulter Partners CPC Biotech srl Dassault Systèmes BIOVIA DiscoverX Edinburgh Instruments Enterprise System Partners (ESP) Eurofins BioPharma Product Testing EUROGENTEC F.P.S. Food and Pharma Systems Srl GE Analytical Instruments IDBS JEOL Europe Kaiser Optical Systems Inc. L.B. Bohle Maschinen + Verfahren GmbH Lab M Ltd. LabWare Linkam Scientific Instruments Limited Lonza MA Business Metrohm Molins Technologies Multicore Dynamics Ltd Nanosurf New England Biolabs, Inc. Ocean Optics Panasonic Biomedical Sales Europe B.V. Peak Scientific ReAgent Russell Finex Limited Sentronic GmbH Source BioScience Takara Clontech Tornado Spectral Systems Tuttnauer Viavi Solutions, Inc Watson-Marlow Fluid Technology Group Wickham Laboratories Limited WITec GmbH Xylem Analytics YMC Europe GmbH Yusen Logistics