Browsing by Author "KOPF, ILONA"
Now showing items 1-6 of 6
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Chemical microscopy and nanoscopy of bio-materials and living cells, IRMMW-THz
KOPF, ILONA (IEEE, 2010)Raman microspectroscopy of human sperm cells and nearfield infrared microscopy of nanoscale biomaterials like nanografted DNA have been performed. A newly developed station for the ANKA-IR2 beamline combines several ... -
Controlled carboxylic acid introduction: a route to highly purified oxidized single walled carbon nanotubes
GIORDANI, SILVIA; KOPF, ILONA (2011)A chemical treatment for preparing high purity selectively oxidised SWNTs while preserving optical/ electronic properties of the material has been developed. Efficient removal of both metal and carbonaceous impurities ... -
Fast quantification of water in single living cells by near-infrared microscopy
KOPF, ILONA (Royal Society of Chemistry, 2004)We have set up a near-infrared microscope using a tuneable diode laser in the range from 1530 to 1570 nm. This spectral range is close to the peak of the water overtone absorption. We used this new microscope to study ... -
Local chemical composition of nanophase-separated polymer brushes
KOPF, ILONA (2011)Using scattering scanning nearfield infrared microscopy (s-SNIM), we have imaged the nanoscale phase separation of mixed polystyrenepoly(methyl methacrylate) (PSPMMA) brushes and investigated changes in the top layer as a ... -
Smart polymer surfaces: mapping chemical landscapes on the nanometre scale
KOPF, ILONA (Royal Society of Chemistry, 2010)We show that Scattering Infrared Near-field Microscopy (SNIM) allows chemical mapping of polymer monolayers that can serve as designed nanostructured surfaces with specific surface chemistry properties on a nm scale. ... -
Surface-Enhanced Raman Scattering from small numbers of purified and oxidised single-walled carbon nanotubes
GIORDANI, SILVIA; KOPF, ILONA (2012)Temporal fluctuations of surface-enhanced Raman scattering spectra of purified and oxidised single walled carbon nanotubes have been observed. SERRS spectra were recorded that possessed fluctuating spectral profiles, these ...