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Porous ceramic can sort proteins magnetically

In recent years chemists and materials scientists have enthusiastically searched for ways to make materials with nanoscale pores — channels comparable in size to organic molecules — that could be used, among other things, to separate proteins by size. Recently Cornell University researchers developed a method to “self-assemble” such structures by using organic polymers to guide the formation of ceramic structures.

Now they have advanced another step by incorporating tiny magnetic particle

A subtle tool to study mankind’s diseases

One of the most powerful tools in today’s biological and medical science is the ability to artificially remove and add bits of DNA to an organism’s genome. This has helped scientists to understand problems caused by defective genes, for example, which have now been linked to thousands of human diseases. So far the technology has been limited to small segments of DNA. But four years ago, Francis Stewart and his colleagues at the European Molecular Biology Laboratory (Heidelberg) developed a new techn

Nature inspires DNA/protein

A new generation of nanoscale devices are being developed based on inspiration found in nature. Grazyna Sroga, a postdoctoral researcher at Rensselaer Polytechnic Institute, is using DNA and related proteins to construct microscopic structures that may one day conduct electricity, deliver drugs, boost computer memory, or sense the presence or absence of chemicals. She is working in the laboratory of Jonathan S. Dordick, the Howard P. Isermann ’42 professor of chemical engineering.

Srog

Teaming up to attack free radicals

Antibody/enzyme combo protects transplanted lungs from oxidative stress damage

Researchers based at the University of Pennsylvania School of Medicine have combined the precision of antibodies with the power of an antioxidant enzyme to create a new way to protect transplanted lungs from oxidative stress – also known as free radical damage – before and during transplantation.

Their findings, presented in the April edition of Nature Biotechnology and available online now, demon

Mayonnaise as Model for Solid Plastics

Intriguing Structural Strategy Aims at Making Designer Plastics Affordable

The future was supposed to be “plastics,” according to advice given in a 1960s movie The Graduate. Many a company thought that future meant the gradual ascendancy of “designer” or specialty plastics, but almost 40 years later the market is still dominated by plastics that can be manufactured cheaply in bulk.

Six researchers from the University of California at Santa Barbara (UCSB) and one at Helsinki U

Sparks spell danger – The Physics Congress 2003

An effective new approach to preventing sparks when an electrically charged object is earthed could prevent explosions and save lives following a motorway smash involving fuel tankers or other hazardous vehicles. Dr Klaus Schwenzfeuer of the Electrostatic Laboratory at the Swiss Institute for the Promotion of Safety & Security in Basle, will reveal the method at the Institute of Physics Congress at Heriot-Watt University on Monday 24 March.

Earthing a conductive and charged object will almos

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