September 24, 2004
University of Sheffield researchers have shown that it is possible to achieve electron beam resolution for organic materials using an ultraviolet laser shown through a near-field optical microscope.
The researchers etched 20-nanometer features into a single layer of molecules on a gold surface using 244-nanometer ultraviolet light. The method could be used to make highly miniaturized arrays of proteins and DNA for biological sensors and analyzers.
In principle.… read more