Determination of intracellular chloride concentrations by fluorescence lifetime imaging
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Determination of intracellular chloride concentrations by fluorescence lifetime imaging. / Gensch, Thomas; Untiet, Verena; Franzen, Arne; Kovermann, Peter; Fahlke, Christoph.
Advanced Time-Correlated Single Photon Counting Applications. Springer, 2015. p. 189-211 (Springer Series in Chemical Physics, Vol. 111).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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TY - CHAP
T1 - Determination of intracellular chloride concentrations by fluorescence lifetime imaging
AU - Gensch, Thomas
AU - Untiet, Verena
AU - Franzen, Arne
AU - Kovermann, Peter
AU - Fahlke, Christoph
PY - 2015
Y1 - 2015
N2 - We report a study on the dielectric relaxation behaviour of samples of sodium carboxymethyl cellulose and its acid form covering the frequency range 20-10.rhlf.5.hlf. Hz and the temperature range 40-90°C. Treating the data in terms of an impedance formalism using the electrical modulus rather than admittance formalism using the complex dielectric constant revealed that two relaxation processes in NaCMC while its acid form, HCMC shows only one. The high frequency process in both NaCMC and HCMC is attributed to the reorientation of the carboxymethyl groups. These results suggest that the previous assumption of lacton formation in HCMC seems to be untenable. The lower frequency in NaCMC is due to a conductivity relaxation. The shorter relaxation time of the latter indicates that the transport of charge carrier requries the motion of the chain segment. The effect of the degree of substitution on the dipolar relaxation in NaCMC is also discussed.
AB - We report a study on the dielectric relaxation behaviour of samples of sodium carboxymethyl cellulose and its acid form covering the frequency range 20-10.rhlf.5.hlf. Hz and the temperature range 40-90°C. Treating the data in terms of an impedance formalism using the electrical modulus rather than admittance formalism using the complex dielectric constant revealed that two relaxation processes in NaCMC while its acid form, HCMC shows only one. The high frequency process in both NaCMC and HCMC is attributed to the reorientation of the carboxymethyl groups. These results suggest that the previous assumption of lacton formation in HCMC seems to be untenable. The lower frequency in NaCMC is due to a conductivity relaxation. The shorter relaxation time of the latter indicates that the transport of charge carrier requries the motion of the chain segment. The effect of the degree of substitution on the dipolar relaxation in NaCMC is also discussed.
U2 - 10.1007/978-3-319-14929-5_4
DO - 10.1007/978-3-319-14929-5_4
M3 - Book chapter
SN - 978-3-540-26047-9
T3 - Springer Series in Chemical Physics
SP - 189
EP - 211
BT - Advanced Time-Correlated Single Photon Counting Applications
PB - Springer
ER -
ID: 209898987