February 11, 2002
The next big wave in imaging technology is terahertz radiation, now probing everything from cells to stars. Rheinisch-Westfälische Technische Hochschule scientists have used terahertz radiation to spot particular sequences of DNA in a sample. This technique is quicker and more accurate than current fluorescent-labelling methods.
To detect changes in the tiny amounts of material that are typically involved in gene-chip analysis, the researchers built guide channels, just a few… read more