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More than £1 billion to be invested in UK science and research

Industry news, News / 1 November 2012 / BIS Press Office

New science investment will make sure UK competes and thrives in global race…

Figure 1 Packing diagrams showing the different molecular arrangements in polymorphs A (left) and B (right) of the antipsychotic drug risperidone (centre). Unit cell parameters for each polymorph are shown.

Polymorph screening in pharmaceutical development

Issue 4 2010, Screening / 19 August 2010 / Professor Alastair J. Florence, Solid-State Research Group, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde

The majority of active pharmaceutical ingredients (APIs) are produced by crystallisation and so the phenomenon of polymorphism, whereby an organic molecule can adopt more than one crystalline form (Figure 1 opposite), is of considerable importance when trying to achieve consistent product quality during the manufacture of pharmaceutical solids and solid dosage forms. Although morphology and particle size-distribution are important solid-state characteristics, the uncontrolled occurrence of multiple physical forms (polymorphs, solvates, salts, co-crystals or amorphous) of an API can have significant effects on the performance of the material during processing, manufacture, storage and administration. For example, the solubility difference between some polymorphs has been shown to be over four times that of the least soluble form1 and can vary by significantly more for amorphous forms2.

Toxicology and Pharmaceutical Industry Advanced Training (PIAT)

Toxicology and Pharmaceutical Industry Advanced Training (PIAT)

Issue 4 2010, Toxicology / 19 August 2010 / Brian Lockwood, Director of PIAT, School of Pharmacy & Pharmaceutical Sciences, University of Manchester

Toxicology is the study of the harmful interactions between chemicals and biological systems. Man, as well as other animals and plants, is increasingly exposed to a huge variety of chemicals. These range from metals to large complex organic molecules, all of which are potentially toxic. A toxicologist must understand pathology, biochemistry, chemistry and physiology as these disciplines all contribute to the impact of a given chemical’s toxicity. Indeed the multidisciplinary nature of toxicology makes the area of toxicology a challenging yet rewarding area for research and learning. To gain a true understanding of how a chemical can disrupt a biological system and cause toxic consequences is no easy matter.

 

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