Research Topics

Arne Kristoffersen


Affiliation: University of Bergen
Location: Bergen, Norway
Multiphoton excitation with femtosecond laser pulses and measurement of fluorescence lifetimes in various cells, organisms and other fluorophores.


  1. Kristoffersen A, Svensen Ø, Ssebiyonga N, Erga S, Stamnes J, Frette Ø. Chlorophyll a and NADPH fluorescence lifetimes in the microalgae Haematococcus pluvialis (Chlorophyceae) under normal and astaxanthin-accumulating conditions. Appl Spectrosc. 2012;66:1216-25 pubmed publisher
    ..We hypothesize that the long lifetime component of NADPH is connected to photoprotection in the cells and coupled to production of astaxanthin. DCMU does not seem to affect the fluorescence lifetimes of NADPH. ..
  2. Kristoffersen A, Hamre B, Frette Ã, Erga S. Chlorophyll a fluorescence lifetime reveals reversible UV-induced photosynthetic activity in the green algae Tetraselmis. Eur Biophys J. 2016;45:259-68 pubmed publisher
    ..This reversal of photosynthetic activity was also confirmed by [Formula: see text] measurements. ..

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