Optical Sciences

Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter. Our current focus is on detection and sensing/imaging with an emphasis on the development of integrated photonics. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.


Detection of fluorescence in situ hybridization on human metaphase chromosomes by near-field scanning optical microscopy

Moers MHP, Ruiter AGT, Jalocha A, vanHulst NF
vol 61 issue 1-4: p279-p283 DEC 1995

Fluorescence in situ hybridization signals o­n human metaphase chromosomes are detected by a near-field scanning optical microscope. This makes it possible to localize and identify several fluorescently labeled genomic DNA fragments o­n a single chromosome with a resolution superior to traditional fluorescence microscopy. Several nucleic acid probes have been used. The hybridization signals are well resolved in the near- field fluorescence images, and the exact location of the probes can be correlated to the topography as it is afforded by the shear-force feedback.
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