Transient electric birefringence of sonicated DNA
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چکیده
منابع مشابه
Transient electric birefringence study of intermediate filament formation from vimentin and glial fibrillary acidic protein.
Mg2+-induced polymerization of type III intermediate filament proteins vimentin and glial fibrillary acidic protein was studied by transient electric birefringence. In the absence of MgCl2 we found a net permanent dipole moment, approximately 45-nm-long dimers for vimentin, approximately 65-nm-long tetramers, hexamers, and possibly octamers for both proteins, and 100-nm aggregates for glial fib...
متن کاملTransient birefringence of liquids induced by terahertz electric-field torque on permanent molecular dipoles
Collective low-frequency molecular motions have large impact on chemical reactions and structural relaxation in liquids. So far, these modes have mostly been accessed indirectly by off-resonant optical pulses. Here, we provide evidence that intense terahertz (THz) pulses can resonantly excite reorientational-librational modes of aprotic and strongly polar liquids through coupling to the permane...
متن کاملHydrodynamic structure of bovine serum albumin determined by transient electric birefringence.
Birefringence relaxation studies on bovine serum albumin (BSA) reveal transient decay described by a double exponential process. The values of the relaxation times lead to estimation of the size of the equivalent ellipsoid of revolution for BSA. Previous measurements of transient birefringence for BSA have shown a single relaxation process, since the apparatus used in obtaining those data was n...
متن کاملErratum: Transient birefringence of liquids induced by terahertz electric-field torque on permanent molecular dipoles
This corrects the article DOI: 10.1038/ncomms14963.
متن کاملElectric birefringence imaging of electrokinetic agarose orientation.
Time-resolved and steady-state electric birefringence imaging with a slow-scan video camera is used to study orientation during DNA agarose gel electrophoresis. The hydrodynamically induced gel distortion is shown to be the major source of birefringence under electrophoresis running conditions and to generate a birefringence image that approximates the image of the DNA concentration gradient in...
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ژورنال
عنوان ژورنال: Biopolymers
سال: 1975
ISSN: 0006-3525,1097-0282
DOI: 10.1002/bip.1975.360141119