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Marked differences in volume phase transitions between gel and single molecule in DNA
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10.1063/1.2748767
/content/aip/journal/jcp/127/3/10.1063/1.2748767
http://aip.metastore.ingenta.com/content/aip/journal/jcp/127/3/10.1063/1.2748767
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Figures

Image of FIG. 1.
FIG. 1.

(a) Volume phase transitions in a DNA gel and a single DNA molecule. Both experiments were carried out at . Upper images are the swelled gel (left, ) and the collapsed gel (right, ). Lower images are fluorescence microscopic images of DNA molecules in the elongated state (left, ), the coexistence region (middle, ), and the compact state (right, ), with corresponding schematic representations of their conformations. (b) Distribution of the hydrodynamic radius at different concentrations obtained from single-DNA observation with fluorescence microscopy.

Image of FIG. 2.
FIG. 2.

[(a) and (b)] Free energy profiles as functions of under different solvent qualities of a single polymer chain and a gel, respectively. [(c) and (d)]. Their corresponding size distributions. Parameters are and in a polymer chain and and in a gel.

Image of FIG. 3.
FIG. 3.

Variation of the volume with the solvent quality for a single DNA chain (a thick solid line) and a DNA gel (a thick dashed line) from the condition . The vertical thick lines are drawn at where the free energies of two stable states are the same.

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/content/aip/journal/jcp/127/3/10.1063/1.2748767
2007-07-16
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Marked differences in volume phase transitions between gel and single molecule in DNA
http://aip.metastore.ingenta.com/content/aip/journal/jcp/127/3/10.1063/1.2748767
10.1063/1.2748767
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