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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 51: Poster Session III-2
CPP 51.11: Poster
Dienstag, 17. März 2020, 14:00–16:00, P2/EG
Magnetic nanogels in the flow — •Ivan Novikau1, Ekaterina Novak2, Pedro Sanchez2, and Sofia Kantorovich1,2 — 1University of Vienna — 2Ural Federal University
Nanogels (NGs) with multifunctionalized magnetic nanoparticles (MNPs) have demonstrated the ability to effectively destroy cancer cells in vivo, without causing visible damage to healthy organs [1].
The presence of MNPs inside the NGs also offers an additional mechanism to control their properties by means of applied magnetic fields.
Our study of a suspension of NGs loaded with MNPs in zero-field case showed that the structural properties of a single gel, and the self-assembly in the given system, strongly depend on the strength of dipole-dipole interaction (dipolar coupling parameter) between the MNPs [2].
Here, we investigate a suspension of magnetic NGs in a shear flow by means of molecular dynamics computer simulations coupled with Lattice-Boltzmann algorithm. Each NG is initially modeled as a system of bead-spring polymer chains randomly cross-linked into a polymer network. MNPs are randomly incorporated into this network [3].
Dipolar coupling, shear rate and viscosity of the carrier liquid are used as control parameters to alter both self-assembly of NGs and individual structural properties.
[1] Qing Wu et al., Nat. Commun., 10 (240), 2019.
[2] Novikau et al., JMMM, 2020.
https://doi.org/10.1016/j.jmmm.2019.166152
[3] Minina et al., J. Mol. Liq., 289, 2019.