Some ideas for the project

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Some ideas for the project DNA globule formation with attractive nanoparticles – chromatin conformation Entropy as the driver of chromosome segregation Suckjoon Jun1 & Andrew Wright2 Nature Microbiology, 2010

Micelle formation by amphiphilic molecules with coarse-grained Lennard-Jones potentials. http://md.chem.rug.nl/cgmartini/index.php/about/martini-projects/sm

r Two particles in a polymer solution : Applicable for Measuring the entropically-induced potentials between two colloids. Two particles in a polymer solution : depletion layer exclusion zone Polymer approximated as “phantom spheres” Applicable for Rg/R << 1 cp/cp* << 1 Ideal Solvent 2Rg Asakura & Oosawa, J Polymer Science Vol 33, p. 183 (1958) Verma, Crocker, Yodh, Phys Rev Lett, 81 4004-4007, 1998. Entropy-driven interparticle attraction Approximations not valid for non-dilute mixtures or Rg ~ R D D+2Rg r

Stability of colloids with DLVO interactions 𝐸 𝑖𝑗 = 𝑖,𝑗 𝑞 𝑖 𝑞 𝑗 𝑟 𝑖𝑗 𝑒 −𝜅𝑟 + 𝜖 𝜎 𝑟 𝑖𝑗 12 − 𝜎 𝑟 𝑖𝑗 6 Model the stability of colloidal suspension with Lennard-Jones interactions and electrostatic interactions. With fixed Lennard-Jones parameters (A,B), how does the suspension stability depend on the electrostatic screening length (Debyle length) k-1?