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The flattening of the absorption spectrum of suspensions, as compared to that of solutions.
  • L. N. Duysens
  • Chemistry, Medicine
  • Biochimica et biophysica acta
  • 1956
It is proved that the absorption spectrum of a suspension of particles is flattened, as compared with that of a solution of the pigments contained in the particles. This flattening is due to theExpand
  • 678
  • 25
Transfer of excitation energy in photosynthesis
  • 210
  • 12
Fluorescence spectrophotometry of reduced phosphopyridine nucleotide in intact cells in the near-ultraviolet and visible region.
An apparatus is described with which it is possible to measure precisely fluorescence spectra, not only of clear solutions, but also of a scattering weakly fluorescent suspension of living cells orExpand
  • 312
  • 4
Excited states and primary photochemical reactions in the photosynthetic bacterium Heliobacterium chlorum.
The charge separation and excited states of antenna bacteriochlorophyll in membrane fragments of the recently discovered photosynthetic bacterium Heliobacterium chlorum were studied byExpand
  • 65
  • 4
  • PDF
Methods for measuring and correcting the absorption spectrum of scattering suspensions.
Abstract It is shown that the absorbance spectrum of a scattering suspension, measured with a spectrophotometer, in which the light is collected within a small angle, is not only shifted upwards, butExpand
  • 59
  • 2
Action spectrum, kinetics and quantum requirement of phosphopyridine nucleotide reduction and cytochrome oxidation in the blue-green alga Anacystis nidulans.
Abstract By means of fluorescence and absorption-difference spectrophotometry the kinetics were measured of phosphopyridine nucleotide reduction and cytochrome oxidation in intact cells of theExpand
  • 52
  • 2
Picosecond absorbance difference spectroscopy on the primary reactions and the antenna-excited states in Photosystem I particles
Abstract Absorbance difference spectra at various delay times, and kinetics of absorbance changes induced by a 35 ps excitation pulse at 532 nm, were measured of relatively intact Photosystem IExpand
  • 131
  • 2
On the magnetic field dependence of the yield of the triplet state in reaction centers of photosynthetic bacteria.
The yield of the triplet state in reaction centers of Rhodopseudomonas sphaeroides is dependent on the strength of an applied magnetic field. Reaction centers of the wild type that lack a functionalExpand
  • 129
  • 2
Magnetic field-stimulated luminescence and a matrix model for energy transfer. A new method for determining the redox state of the first quinone acceptor in the reaction center of whole cells of
In whole cells of Rhodospirillum rubrum the light-induced absorbance difference spectrum of the reduction of the first quinone electron acceptor Q1 was determined in order to relate the emissionExpand
  • 25
  • 2
Primary photosynthetic reactions in relation to transfer of excitation energy.
  • 4
  • 2