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Measuring the diffusion of fluorophores in human skin by two-photon fluorescence correlation spectroscopy combined with measurements of point spread function

Guldbrand, Stina, 1970 (author)
Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
Simonsson, Carl, 1976 (author)
Gothenburg University,Göteborgs universitet,Institutionen för kemi,Department of Chemistry
Goksör, Mattias, 1975 (author)
Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Smedh, Maria, 1968 (author)
Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
Ericson, Marica B, 1974 (author)
Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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 (creator_code:org_t)
2011
2011
English.
In: MULTIPHOTON MICROSCOPY scigloo.IN THE BIOMEDICAL SCIENCES XI Book Series: Proceedings of SPIE. ; 7903, s. 7903291-7903296
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Two-photon excitation fluorescence correlation spectroscopy (TPFCS) has been used in combination with measurements of the point spread function (PSF), for quantitative analysis of fluorophores in excised human skin. Measurements have been performed at depths between 0 and 40 μm. The PSF, measured as full width at half maximum, was found not to depend on the depth. Measurements revealed difference in diffusion coefficient depending on extra- or intracellular location of fluorophore. The number of molecules was accumulating close to the surface and then decreased by the depth. The results from our study show that TPFCS can be used for quantitative analyses of fluorescent compounds in human skin.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

two photon
fluorescence correlation spectroscopy
point spread function
diffusion
human skin

Publication and Content Type

ref (subject category)
art (subject category)

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Guldbrand, Stina ...
Simonsson, Carl, ...
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NATURAL SCIENCES
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and Physical Science ...
and Atom and Molecul ...
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and Physical Science ...
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University of Gothenburg

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