Dr. Karl-Heinz Heise

Knowledge of a material’s hardness is indispensable for its proper application. In response to this need, hardness testing methods were developed, particularly over the course of the last century. However, …

Persistent Organic Pollutants (POPs) are organic compounds that are harmful to humans and animals and degrade only very slowly in the environment. They contaminate air, soil and water and can …

The material silicone rubber offers a wide range of excellent technical properties and is therefore used in many different applications. But what can this elastomer do—the one found in clothing, …

Corrosion is a global problem. Steel structures in particular are affected, such as bridges and load-bearing structures, but also industrial plants, railway tracks, pipelines, vehicles, and machinery. In 2009, the …

Screws, Nuts, and Threads – a Brief Overview What do a toothpaste tube, a jar of jam, a water bottle, and a light bulb have in common? A screw connection. …

In 2011, people became ill, and some even died as a result of an EHEC outbreak—an intestinal infection caused by the enterohemorrhagic Escherichia coli bacterium. The cause was fenugreek sprouts …

HPLC stands for High Performance Liquid Chromatography. This technique is used for both preparative and analytical separations. In biochemical research, HPLC is especially useful for preparing and analyzing substances with …

Many people are familiar with nylon and the related polymer Perlon as components of textiles. However, polyamides are also used in vehicles and under the hood. Fuels, for example, are …

Anyone working with polymers and their properties should know something about what is known as the molecular weight distribution. What it is, how it can be determined using gel permeation …

Anyone who has spent a longer period of time being treated in a hospital has most likely come into contact with the Luer/Lock system – for example during an infusion …