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New fluorescence correlation spectroscopy (FCS) suitable for the observation of anomalous diffusion in polymer solution: Time and space dependences of diffusion coefficients
- Source :
-
Journal of Photochemistry & Photobiology A: Chemistry . Oct2006, Vol. 183 Issue 3, p304-308. 5p. - Publication Year :
- 2006
-
Abstract
- Abstract: We propose a new method of fluorescence correlation spectroscopy (FCS) enabling direct detection of anomalous diffusion as the distance dependence of diffusion coefficients (DDDC), namely, sampling-volume-controlled (SVC)-FCS. In discussing the results of SVC-FCS measurement of molecular diffusion in aqueous hyaluronan (HA) solutions in this paper, we suggest the use of “local anomalous diffusion” based on the differential of the mean-square displacement (MSD) which is convenient for understanding the total lineshapes of the observed diffusion coefficient as a function of the diffusion distance or the diffusion time. [Copyright &y& Elsevier]
- Subjects :
- *DIFFUSION
*PROPERTIES of matter
*SOLUTION (Chemistry)
*FLUORESCENCE
Subjects
Details
- Language :
- English
- ISSN :
- 10106030
- Volume :
- 183
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Photochemistry & Photobiology A: Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 22474142
- Full Text :
- https://doi.org/10.1016/j.jphotochem.2006.06.040