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Articles

Polyelectrolyte complexes as nanoparticulate drug delivery systems

3 July 2015 | By Anita Umerska, University of Anger and Lidia Tajber, Trinity College Dublin

Polyelectrolyte complexes at the nanoscale (polyelectrolyte complex nanoparticles; PECNs) can be harnessed as drug delivery systems for a range of low molecular weight drugs as well as peptides and proteins. The mild method of manufacture of PECNs results in the protection of the loaded bioactive and the choice of polyions…

Revolutionising Raman with the transmission technique

3 July 2015 | By Julien Villaumié and Hilary Jeffreys, Actavis

All regulatory agencies require that manufacturers accurately determine the amount of drug in a medicinal product so that the product can be deemed fit for patients. This forms part of batch release testing performed by Quality Control (QC) laboratories. The drug assay and/or content uniformity of the dosage units is…

Universal detection in high performance liquid chromatography

3 July 2015 | By David P. Elder, Phil Borman and George Okafo - GlaxoSmithKline

The most commonly used analytical technique for the testing of drug molecules is reversed-phase high performance liquid chromatography (RP-HPLC) with ultraviolet (UV)/visible detection. However, one of the biggest constraints affecting UV/visible detectors is their inability to generate adequate sensitivity for analytes lacking a suitable UV chromophore.

Fast quantitative 2D NMR for quantifying analytes in complex mixtures

3 July 2015 | By Patrick Giraudeau, University of Nantes

Nuclear magnetic resonance (NMR) spectrometry is a major quantitative tool in pharmaceutical analysis, owing to its extremely high accuracy. However, absolute quantification in complex mixtures is often hampered by spectral overlap which considerably reduces the quantitative performance of NMR.

PAT Series: Applicability of process analytical tools to bioprocessing trends

3 July 2015 | By Payal Roychoudhury, PhD, formerly AstraZeneca

The past decade has been a period of unparalleled change and development in the fermentation industry. As the nature of this industry evolves, and in particular, with the increasing prominence of the new biopharmaceuticals (therapeutic proteins, diagnostic enzymes and monoclonal antibodies) the need for effective bioprocess monitoring grows in importance1.

Stem Cells In-Depth Focus 2015

20 April 2015 | By

In this free-to-view Stem Cells In-Depth Focus, you can find out how computational ('in silico') methods can help to rationally choose bioactive small molecules to improve stem cell differentiation. The differentiation of pluripotent stem cells to hepatocyte-like cells is the focus of a second interesting article...

LC-MS In-Depth Focus 2015

20 April 2015 | By

In this free-to-view LC-MS in-depth focus, we delve into the world of glycans, and how their natural complexity necessitates sophisticated sequencing techniques, while another article aims to demonstrate the versatility of LC-MS and the ease with which it can be combined with a variety of MS systems, focusing particularly on…

Precompetitive collaborations in the pharmaceutical industry

20 April 2015 | By Dave Elder, GlaxoSmithKline and JPAG

Increasing research and development costs, low productivity, reduced product life cycles, governmental pricing containment, convergence of technologies and increasing regulatory oversight are challenges that increasingly provoke pharmaceutical companies into making precompetitive collaborations with other organisations.

Outsourcing in the analytical and microbiology area

20 April 2015 | By Roger A. Stroud, R Stroud Pharmaceutical Quality Solutions Limited

Increasing numbers of pharmaceutical companies are considering outsourcing in the area of analytical and microbiological testing, from the very smallest start-up, virtual, or small company up to the largest multinational. This article will examine the factors that lead to a company deciding to outsource, and provides invaluable guidance on the…

Drug pricing reforms: the Danish experience

20 April 2015 | By Ulrich Kaiser, University of Zurich / Susan Mendez, Melbourne Institute of Applied Economic and Social Research / Thomas Rønde, Copenhagen Business School / Hannes Ullrich, DIW Berlin and University of Zurich

Reference price systems for prescription drugs have found widespread use as cost containment tools. Under such regulatory regimes, patients co-pay a fraction of the difference between pharmacy retail price of the drug and a reference price. Reference prices are either externally (based on drug prices in other countries) or internally…

Reducing microbial contamination via sterile risk assessment

20 April 2015 | By Guenther Gapp, Lachman Consulting Ltd/Independent Consultant

Several years ago, microbiologist Guenther Gapp created a new sterile risk assessment tool (based on a hazard operability analysis [HAZOP] approach) to identify and reduce the microbial contamination and compliance risk of aseptically-produced sterile products and production plants. The following article describes the operating principle of three risk analysis tools…

Real-time biological particle counting in environmental monitoring

20 April 2015 | By

The methods for monitoring air in cleanroom environments: viable counting techniques (settle plates and biological air samplers) and particle counters, are long established technologies and have been widely used in pharmaceutical manufacturing environments for decades. Although innovations have taken place with both particle counters and biological air samplers, primarily in…

Manufacturing Solutions: Continuous processing

20 April 2015 | By Ivo Backx, Manager, Business & Project Development for the Pharmaceutical Industry, Siemens

Ivo Backx of Siemens discusses continuous processing in the context of the company’s Simatic PCS 7 system and PAT software...