Stark hole burning of aluminum phthalocyanine tetrasulfonate in normal and cancer cells
Article Abstract:
A study on the aluminum phthalocyanine tetrasulfonate in MCF-10F (normal) and MCF-7 (cancer) cells using Stark hole burning spectroscopy is described. Results reveal that laser polarization parallel and perpendicular to an applied electric field causes the hole widening for zero-phonon holes fort both cell lines. Moreover, changes in dipole moment indicate that dye molecules are situated near the cell membrane and that in normal cells they undergo some degree of ordering not found in cancer cells.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Stark hole-burning studies of three photosynthetic complexes
Article Abstract:
The dipole moment changes for the B800 absorption band of the light harvesting 2 complex of Rhodobacter sphaeroides, Rhodopseudomonas acidophila and Rhodospirillum molischianum were investigated using Stark hole-burning spectroscopy at 1.8 K. The results were compared with those obtained through the classical modulation spectroscopy. The dipole moment values from the two techniques were different, the most notable of which are between the B850 and B875 bands.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Red antenna states of PS I of cyanobacteria: Stark effect and interstate energy transfer
Article Abstract:
Stark hole-burning spectroscopy and effects of pressure at low temperature were used to determine the number of red antenna states of the cyanobacteria Synechococcus elongatus and Synechocystis PCC6803. The Stark hole burning at higher resolution is used to reinvestigate the absence of splitting, which should occur for one of the polarizations unless there is a large, random component to the induced dipole moment change.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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