Office Location:
William Eckhardt Research Center (251)
Artem was born and raised in Voronezh, Russia. He received his master’s degree in physics with honors from Lomonosov Moscow State University in 2013. During his PhD, Artem studied swelling behavior of polyelectrolyte networks under the guidance of Professor Elena Kramarenko at Lomonosov University. He simultaneously developed a theory of non-uniform and non-isotropic swelling of polymer microgels under the co-advisement of Professors Igor Potemkin and Martin Möller in DWI–Leibnitz Institute for Interactive Materials at RWTH Aachen University, Germany. He moved to Pau, France, in 2017, where worked as a postdoctoral researcher in the group of Dr. Oleg Borisov in cooperation with Dr. Ekaterina Zhulina. Artem joined the de Pablo group in November 2018 and is currently a postdoctoral fellow at the Pritzker School of Molecular Engineering working as a theorist on coacervation-related phenomena. In his spare time, he enjoys watching/playing chess and watching ice hockey.
Polyelectrolyte Complex Coacervation. Aqueous solutions of oppositely charged polyelectrolytes undergo liquid-liquid associative phase separation into a highly dilute supernatant and a polymer-rich condensed phase called complex coacervate. Artem uses statistical physics approaches to explore various aspects of this phenomenon, such as (i) liquid crystalline ordering in coacervate containing semiflexible polyelectrolytes, (ii) the effect of the sequence of charges in polyions on the coacervate properties, and (iii) intra-coacervate microphase separation induced by the incompatibility of polyions. To a large extent, this theoretical work is done in the context of the collaboration including simulations and experimental activity of Tirrell Group.
Conformations of Sequence-Specific Polyampholytes. Another direction of Artem’s research is devoted to the single-chain conformational behavior of polyampholytes. Theoretical methods such as the random phase approximation and scaling are combined with coarse-grained computer simulations to reveal the effect of the monomer sequence and global charge of the polyampholytes on the transitions between spherical globular and necklace-like conformations. This work is done in collaboration with Albert Johner (Institut Charles Sadron, Strasbourg).
Lu Li, Artem M Rumyantsev, Samanvaya Srivastava, Siqi Meng, Juan J de Pablo, Matthew V Tirrell. "Effect of Solvent Quality on the Phase Behavior of Polyelectrolyte Complexes", Macromolecules, 2020.
Boyuan Yu, Artem M Rumyantsev, Nicholas E Jackson, Heyi Liang, Jeffrey M Ting, Siqi Meng, Matthew V Tirrell, Juan J de Pablo. "Complex coacervation of statistical polyelectrolytes: role of monomer sequences and formation of inhomogeneous coacervates", Molecular Systems Design & Engineering, 2021.
Angelika E Neitzel, Yan N Fang, Boyuan Yu, Artem M Rumyantsev, Juan J de Pablo, Matthew V Tirrell. "Polyelectrolyte complex coacervation across a broad range of charge densities" Macromolecules, 2021
