Article Archive

Article archive

SPR-based instruments for molecular binding studies

Surface plasmon resonance enables the detailed study of biomolecular function in real time and without the need for fluorescent tags or radioactive markers, and often without the need for prior purification. Elab reports.

IR microscope speeds sample analysis

The Centaurµs infrared (IR) microscope, from Thermo Nicolet, has been designed for the rapid throughput of samples in the pharmaceutical, polymer, forensic and microelectronic industries.

Pittcon editors gold award 2001 for chromolith hplc columns

Products spanning the analytical spectrum won top honours at the annual Pittcon Editors' Awards judging session in New Orleans this year, according to Dr. Gordon Wilkinson, consultant editor to Instrumenta who organised the informal poll of editors and journalists covering this major industry event for analytical instruments and laboratory equipment.

Nucleic acid separation system gives precision fragment sizing

A bioanalyser used in conjuction with a kit to size DNA fragments generated by restriction enzyme digestion can overcome limitations of slab gel electrophoresis. Odilo Mueller reports.

Automated RNA purification for gene-expression analysis projects

As the sequence of the human genome is deciphered, determining gene function and gene expression are becoming the focus of life science research. Carola Schade and Achim Wehren reports.

Detecting oxydisable carbon in ultrapure

The purity of the major reagent used in all laboratories is often not fully monitored and recorded. This, as Jean-François Pilette reports, means organic contamination is not often determined.

Perfusion system for increased expansion of cancer cells

Sensitive removal of cells from the bioreactor, the addition of fresh media and the removal of cell debris for purification combined are a significant aid to cancer research. Carrie Bracco reports.

Clean chamber cuts out contaminants

Users of CO2 incubators are greatly concerned by contamination. In fact, it is better to use an instrument which is designed to inhibit contamination than one that sterilises a susceptible chamber after contamination has occurred.

Single tube solution streamlines the extraction of nucleic acid

The polymerase chain reaction (PCR) has changed the way we do life sciences, but the impact of this technology has reached far beyond that, into clinical settings and other fields of study such as gene/drug discovery, forensic science, ecology, archaeology, genetics/molecular biology, and anthropology. Craig M Sampson reports.

Stirring blocks designed for automation technology

The most recent generation of the proven Variomag reaction blocks, by H+P Labortechnik, offers all the features that combine chemistry and substance research demand: parallel synthesis and a completely automate process. This system is so flat that it is easy to integrate with pipette robots (liquid handler) such as a Tecan Genesis.

A novel Chinese medicine for treatment of diabetes mellitus

Dr Caiping Wang looks at the potential of Diaban, a Chinese herbal medicine designed by modern biotechnology and traditional Chinese medicine, in the treatment of diabetes mellitus.

IN-situ dissolved co2 measurements in bioprocesses

The YSI 8500 CO2 monitor measures dissolved carbon dioxide in bioprocess development applications. Engineered to fit within a variety of bioreactors, the unit delivers precise, real-time data that increases an understanding of critical fermentation and cell culture processes. This data can help in gaining insight into cell metabolism, cell culture productivity, and other changes within bioreactors.

Do not be superficial ­ take a closer look at what is below the surface

The term asuperficial' has had bad press. If you only look at the surface, it implies, you miss all the detail. But it is not really true. You can find out a great deal from surfaces a either by looking at them, or by exploiting their properties. You just have to know the right way to look, and with which tools. Stuart Nathan reports.

Test facility for fluid bed drying

The MP-Micro fluid bed is a bench-top machine which allows laboratories to optimise formulations and identify process parameters for a wide range of products. It is designed for research and development projects and is claimed to have the flexibility of a full sized fluid bed dryer in a compact unit.

Proteomics goes on the march and outstrips computerised systems

Eric Russell looks at the technical advances in genomics and proteomics which have spawned a related revolution in the growing field of bioinformatics. This can be described as the acquisition, analysis, and storage of biological information, specifically nucleic acid and protein sequences. Such growth is also fuelling the demand for more software development.

Protein ingredients market worth $9bn in 2007

In the aftermath of the BSE crisis food manufacturers began to investigate the substitution of animal proteins by plant proteins.

Advances in the automated image analysis of particles and cells

Particle shape and function are intimately linked. However, because of the lack of a universal shape analysis technique, the exact relationship between the two has been hard to define. As David Higgs explains, new technology is now likely to solve this problem.

Monitor can be located 250 metres from base station

The MLS2000, from Monitherm Ltd, is based around an industrial PC with a current maximum of 128 radio transmitter sensors which can be located up to 250 metres from the base station.

A brief guide to quantitative analysis of electrophoresis gels

Dr Paul N Goulding discusses some of the important aspects of getting anumbers from pictures' ­ that is quantitative gel analysis.

Centrifugation cell preparation system

The Cytocentrifuge-Cytospin 4 is a versatile processing system suitable for use in the fields of immunohistochemistry, fluorescence and in-situ hybridisation, in vitro chemosensitivity and rapid viral testing.

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