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Equipement and Competence
At Physical chemistry mainly spectroscopic equipment is available for photophysical studies of different biochromophore systems:
- UV-vis absorption spectrometers (temperature blocks available).
- Phase-modulation linear dichroism spectrometers for the 180 - 800 nm range (one for studying electrophoretic orientation of DNA in horisontal gels).
- Jasco J-720 vacuum UV circular dichroism spectrometer.
- Perkin Elmer 1800 FTIR spectrometer.
- Spex phase-modulation life-time fluorimeter (200 nm - 800 nm).
- Spex fluorimeter with three double monochromators and emission detection in the range 260-1200 nm. Steady-state anisotropy possible.
- Phosphorimeter with pulsed xenen lamp (lifetimes > l0µs).
- Argon ion laser electric dichroism relaxation equipment.
- Equipment for single photon counting, capable of measuring fluorescence lifetimes down to 15 picoseconds. The excitation source is a pulsed laser, which, together with additional optics, can generate wavelengths from 280 to 1300 nm (continuously). It is also possible to measure time-resolved fluorescence anisotropy.
- Set-up for measuring transient absorption on short time-scales (10-50 femtoseconds).
- Potentiostat equipment that can be used for electro analytical methods such as cyclic voltammetry (a standard method to determine redox potentials), and equipment for measuring spectra of electro generated species.
- Closed-cycle helium, liquid helium and liquid nitrogen cryostats for optical spectroscopy.
- Matrix isolation equipment for low temperature spectroscopy (currently not in use).
- Maxwell flow device of niobium for small-angle neutron scattering anisotropy, and one made of silica for optical measurements, on shear-oriented DNA-protein complexes.
- Malvern dynamic light scattering equipment.
- Stopped-flow instrument for kinetics studies (absorbance, fluorescence and CD) with fast mixing of samples on the millisecond scale.
- Isothermal titration microcalorimeter (currently not in use).
- Two patch clamp setups for cell activity measurements. ▪ Leica DMIRB inverted microscopes.
- Leica DMIRE2 inverted confocal microscope (with several lasers).
- Spectra-Physics Stabilite 2017 argon ion laser.
- Narishige MHW-3 water hydraulic micro manipulators.
- Hamamatsu color chilled 3CCD camera.
- Electrophoresis equipment for both gel and capillary electrophoresis.
- Molecular Dynamics Fluorimager and GMI Storm Molecular Imager gel scanners.
Last modified:
October 10, 2006
Responsible for this page:
Erica Dahlin
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