Outputs (13)

Frequency-dependent chemolocation and chemotactic target selection (2010)
Journal Article
Nowak, S., Chakrabarti, B., Chou, T., & Gopinathan, A. (2010). Frequency-dependent chemolocation and chemotactic target selection. Physical Biology, 7(2), Article 026003. https://doi.org/10.1088/1478-3975/7/2/026003

Chemotaxis is typically modeled in the context of cellular motion toward a static, exogenous source of chemoattractant. Here we propose a time-dependent mechanism of chemotaxis in which a self-propelled particle (e.g. a cell) releases a chemical that... Read More about Frequency-dependent chemolocation and chemotactic target selection.

Shear Unzipping of DNA (2009)
Journal Article
Chakrabarti, B., & Nelson, D. (2009). Shear Unzipping of DNA. Journal of Physical Chemistry B (Soft Condensed Matter and Biophysical Chemistry), 113(12), 3831-3836. https://doi.org/10.1021/jp808232p

We study theoretically the mechanical failure of a simple model of double-stranded DNA under an applied shear. Starting from a more microscopic Hamiltonian that describes a sheared DNA, we arrive at a nonlinear generalization of a ladder model of she... Read More about Shear Unzipping of DNA.

Orientation-dependent interactions of DNA with an alpha-hemolysin channel (2008)
Journal Article
Wanunu, M., Chakrabarti, B., Mathe, J., Nelson, D., & Meller, A. (2008). Orientation-dependent interactions of DNA with an alpha-hemolysin channel. Physical review E: Statistical, nonlinear, and soft matter physics, 77(3), Article 031904. https://doi.org/10.1103/physreve.77.031904

We present experimental and theoretical results on the voltage-dependent escape dynamics of DNA hairpins of different orientations threaded into an α-hemolysin channel. Using a coarse-grained formulation, we map the motion of the polymer in the pore... Read More about Orientation-dependent interactions of DNA with an alpha-hemolysin channel.