dr. L. Dorogin (Leonid)

I had graduated with Master's degree from Physics Faculty of St.-Petersburg State University (Russia) in condensed matter physics in 2008, followed by Doctor of Philosophy degree from University of Tartu (Estonia) in materials science in 2012. Then I have been conducting materials research in academic institutions of Germany, Italy, Russia. Since 2022 I have joined the Sustainable Polymer Chemistry group at the Faculty of Science and Technology, University of Twente as a Senior Postdoctoral Researcher.

While my professional interests are physics, materials science, I find inspiration in music, classical arts, retro technology and Western philosophy.

Physics & Astronomy

# Kinetic Friction
# Nanowires
# Static Friction

Engineering & Materials Science

# Electron Microscopes
# Friction
# Nanowires

Chemistry

# Force
# Nanowire

Faculty of Science and Technology (TNW), Sustainable Polymer Chemistry (SPC)

My doctoral thesis in materials science "Structural and tribological properties of zero- and one-dimensional nanocrystals" publicly defended in University of Tartu (Estonia) in 2012 had set an initial vector for my further research.

In 2016-2017 I had been a guest scientist at Forschungszentrum Juelich (Germany), where I had been collaborating with Dr. Bo Persson and Prof. Gert Heinrich (Leibniz Institute of Polymer Research Dresden, Germany) in the field of soft matter tribology.

In 2018-2019 I had been a guest scientist at University of Padova (Italy) in the lab of Prof. Lucia Nicola, where I had been collaborating in the field of computational contact mechanics.

In 2019-2022 I had been a Research Fellow in ITMO University (Russia) and in 2021-2022 became an Associate Professor in the same university.

Since 2022 I have joined the Sustainable Polymer Chemistry group at the Faculty of Science and Technology, University of Twente as a Senior Postdoctoral Researcher, where I have started collaboration with Prof. Sissi de Beer.

My academic fields of interest in materials science and physics:

Soft matter tribology, adhesion, viscoelastic and polymer materials, rough surface science.
Nanomechanics, in particular, tribology, manipulation, mechanical testing of nanoscale objects; numerical simulations of nanomechanical systems.
Theory of defects in solids in the framework of continuum mechanics and defects dynamics in nanostructured materials.
Kinetic quantum transport theory in solid state matter: conductors and semiconductors.

Kaminskii, V. V., Abe, E., Kawamura, Y. , Dorogin, L. M., & Romanov, A. E. (2022). Kinking in LPSO Mg-Zn-Y Alloys and Other Layered Materials. Reviews on Advanced Materials and Technologies, 4(2), 15-31. https://doi.org/10.17586/2687-0568-2022-4-2-15-31

Vlassov, S., Oras, S., Timusk, M., Zadin, V., Tiirats, T., Sosnin, I. M., Lõhmus, R., Linarts, A., Kyritsakis, A. , & Dorogin, L. M. (2022). Thermal, Mechanical, and Acoustic Properties of Polydimethylsiloxane Filled with Hollow Glass Microspheres. Materials, 15(5), [1652]. https://doi.org/10.3390/ma15051652

Sosnin, I. M., Vlassov, S. , & Dorogin, L. M. (2021). Application of polydimethylsiloxane in photocatalyst composite materials: A review. Reactive & functional polymers, 158, [104781]. https://doi.org/10.1016/j.reactfunctpolym.2020.104781

van Dokkum, J. S., Peréz-Ràfols, F. , Dorogin, L., & Nicola, L. (2021). On the retraction of an adhesive cylindrical indenter from a viscoelastic substrate. Tribology international, 164, [107234]. https://doi.org/10.1016/j.triboint.2021.107234

Sosnin, IM., Vlassov, S., Akimov, EG., Agenkov, VI. , & Dorogin, LM. (2020). Hydrophilic polydimethylsiloxane-based sponges for dewatering applications. Materials letters, 263, [127278]. https://doi.org/10.1016/j.matlet.2019.127278

Sosnin, I. M., Vlassov, S., Akimov, E. G., Agenkov, V. I. , & Dorogin, L. M. (2020). Transparent ZnO-coated polydimethylsiloxane-based material for photocatalytic purification applications. Journal of Coatings Technology and Research, 17, 573-579. https://doi.org/10.1007/s11998-019-00314-2

Antsov, M., Polyakov, B., Zadin, V., Mets, M., Oras, S., Vahtrus, M., Lohmus, R. , Dorogin, L., & Vlassov, S. (2019). Mechanical characterisation of pentagonal gold nanowires in three different test configurations: A comparative study. Micron, 124, [102686]. https://doi.org/10.1016/j.micron.2019.102686

Angerhausen, J., Murrenhoff, H., Persson, BNJ. , Dorogin, L., & Scaraggi, M. (2019). Finite Element based Transient Elastohydrodynamic Simulation of Translational Hydraulic Seals. International Journal of Fluid Power, 20(1), 1-25. https://doi.org/10.13052/ijfp1439-9776.2011

Vlassov, S., Mets, M., Polyakov, B., Bian, J. , Dorogin, L., & Zadin, V. (2019). Abrupt elastic-to-plastic transition in pentagonal nanowires under bending. Beilstein journal of nanotechnology, 10, 2468-2476. https://doi.org/10.3762/bjnano.10.237

Dorogin, L., & Persson, B. N. J. (2018). Contact mechanics for polydimethylsiloxane: from liquid to solid. Soft matter, 14(7), 1142-1148. https://doi.org/10.1039/C7SM02216F

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Starting 2022 - I am an assistant instructor of the courses “Molecular Modelling” (M-CHE), and “Statistical Thermodynamics” (M-CHE) at University of Twente.