Porosity Gradient Gels

mobility and nett charge. A number of different (iso)enzyme systems have been classified in this way and comparisons between related species used to study the evolution of enzyme systems.

Porosity gradient gels can be easily prepared using one of the different devices on the market. Ready-to-use pore gradient gels are commercially available (Amersham Pharmacia Biotech, Freiburg, Germany; Gradipore, 200 Harris Street, Pyrmont NSW 2009, Sydney, Australia). Porosity gradient gels can be prepared in casting glass cassettes either without any further support or by adhering them to a silanized glass plate or a reactive polyester film. The latter two methods are employed when ultra-thin gels are to be used horizontally. Glass cassette cast PA gradient gels without any further support are used vertically.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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