16-11-2009

In today’s competitive skin care market, consumers look for a range of benefits, superior aesthetics and cost effectiveness. In response, formulators strive to create products that are multifunctional, easy to use and effective in small quantities. At the same time, the most successful ...

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09-11-2009

INTRODUCTION From the late 1980s commercial Dynamic Light Scattering (DLS) detectors started being used in commercial biophysical laboratories throughout the world. These instruments enabled size measurements of small volumes of proteins and other biomaterials in solution to be made, with ...

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Optimal protection when handling cryogenic liquefied gases

28-10-2009

"A little splash of liquid nitrogen hasn't hurt anybody" – this happens to be a widespread opinion in many laboratories. The real dangers connected to cryogenic gases many people had to learn firsthand, unexpected and painful. Skin irritation, cell and tissue damage or severe burn injuries ...

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15-09-2009

Antioxidants are able to neutralize Reactive Oxygen Species Antioxidant capacity of fruit juices determined with the ORAC assay in 96 and 384-well format MARS data analysis software with predefined templates for quick ORAC evaluation Introduction In all oxygen consuming cells, metabolism ...

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03-09-2009

Many assume the contamination of lubricants occurs after the lubricants have been applied to machines. While wear debris and water ingress are expected to contribute to lubricant contamination it doesn’t mean maintenance professionals need to accept lubricant contamination as a futile ...

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03-09-2009

Rolling-element bearings are used for the precise guidance of moving parts. Frictional losses are extremely small because the bearings rest on rolling elements, enabling very heavy loads to be adsorbed. Rolling-element bearings may be lubricated with greases or oils depending on the point of ...

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20-07-2009

Abstract Polyether-modified silicones have a long history of use in the personal care industry as emulsifiers and dispersants, as well as stabilizers for water-in-oil systems. However, because of their external phase type, water-in-oil systems tend to display poor aesthetics, such as ...

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Online process for soft water control

27-11-2007

For the generation of soft water are mostly used ion exchanging devices with generation of sodium chloride since the beginning of the Sixties. The generated soft water quality and soft water quantity are depending thereby on the static and dynamic characteristics of the softening plant in ...

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29-06-2007

Application 1 Fast method development and upscaling shown by the example of a root extrakt. Rotor volume 200 ml, flow rate: 10 ml/min, detection UV 254 nm, solvent system: hexane-ethylacetate-methanol-water Fig. 1Fig. 2 Fig. 3 Fig. 4 The analytical HPLC chromatogram (Fig.1) shows the ...

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07-02-2007

Dynamic Light Scattering (DLS) is an established technique in the field of protein crystallography. DLS is used to measure hydrodynamic sizes, polydispersities and aggregation effects of protein samples. These are important parameters for the crystallisation of proteins. DLS is also used in ...

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