dorsal/arxiv
View SchemaTemperature Effects on Threshold Counterion Concentration to Induce Aggregation of fd Virus
| Authors | Qi Wen, Jay X Tang |
|---|---|
| Categories | |
| ArXiv ID | physics/0511154 |
| URL | https://arxiv.org/abs/physics/0511154 |
| DOI | 10.1103/PhysRevLett.97.048101 |
Abstract
We seek to determine the mechanism of like-charge attraction by measuring the temperature dependence of critical divalent counterion concentration ($\rm{C_{c}}$) for the aggregation of fd viruses. We find that an increase in temperature causes $\rm{C_c}$ to decrease, primarily due to a decrease in the dielectric constant ($\epsilon$) of the solvent. At a constant $\epsilon$, $\rm{C_c}$ is found to increase as the temperature increases. The effects of $T$ and $\epsilon$ on $\rm {C_{c}}$ can be combined to that of one parameter: Bjerrum length ($l_{B}$). $\rm{C_{c}}$ decreases exponentially as $l_{B}$ increases, suggesting that entropic effect of counterions plays an important role at the onset of bundle formation.
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"abstract": "We seek to determine the mechanism of like-charge attraction by measuring the\ntemperature dependence of critical divalent counterion concentration\n($\\rm{C_{c}}$) for the aggregation of fd viruses. We find that an increase in\ntemperature causes $\\rm{C_c}$ to decrease, primarily due to a decrease in the\ndielectric constant ($\\epsilon$) of the solvent. At a constant $\\epsilon$,\n$\\rm{C_c}$ is found to increase as the temperature increases. The effects of\n$T$ and $\\epsilon$ on $\\rm {C_{c}}$ can be combined to that of one parameter:\nBjerrum length ($l_{B}$). $\\rm{C_{c}}$ decreases exponentially as $l_{B}$\nincreases, suggesting that entropic effect of counterions plays an important\nrole at the onset of bundle formation.",
"arxiv_id": "physics/0511154",
"authors": [
"Qi Wen",
"Jay X Tang"
],
"categories": [
"physics.bio-ph",
"physics.chem-ph"
],
"doi": "10.1103/PhysRevLett.97.048101",
"title": "Temperature Effects on Threshold Counterion Concentration to Induce Aggregation of fd Virus",
"url": "https://arxiv.org/abs/physics/0511154"
},
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