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Hubert M, Trosman O, Collard Y, Sukhov A, Harting J, Vandewalle N, Smith AS. Scallop Theorem and Swimming at the Mesoscale. Phys Rev Lett 2021; 126:224501. [PMID: 34152187 DOI: 10.1103/physrevlett.126.224501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 04/28/2021] [Indexed: 06/13/2023]
Abstract
By comparing theoretical modeling, simulations, and experiments, we show that there exists a swimming regime at low Reynolds numbers solely driven by the inertia of the swimmer itself. This is demonstrated by considering a dumbbell with an asymmetry in coasting time in its two spheres. Despite deforming in a reciprocal fashion, the dumbbell swims by generating a nonreciprocal Stokesian flow, which arises from the asymmetry in coasting times. This asymmetry acts as a second degree of freedom, which allows the scallop theorem to be fulfilled at the mesoscopic scale.
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Affiliation(s)
- M Hubert
- PULS Group, Department of Physics and Interdisciplinary Center for Nanostructured Films, FAU Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - O Trosman
- PULS Group, Department of Physics and Interdisciplinary Center for Nanostructured Films, FAU Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Y Collard
- GRASP, Research unit CESAM, Institute of Physics B5a, Université de Liège, 4000 Liège, Belgium
| | - A Sukhov
- Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, 90429 Nürnberg, Germany
| | - J Harting
- Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, 90429 Nürnberg, Germany
- Department of Chemical and Biological Engineering and Department of Physics, FAU Erlangen-Nürnberg, 90429 Nürnberg, Germany
| | - N Vandewalle
- GRASP, Research unit CESAM, Institute of Physics B5a, Université de Liège, 4000 Liège, Belgium
| | - A-S Smith
- PULS Group, Department of Physics and Interdisciplinary Center for Nanostructured Films, FAU Erlangen-Nürnberg, 91058 Erlangen, Germany
- Group for Computational Life Sciences, Division of Physical Chemistry, Ruđer Boskovic Institute, 10000 Zagreb, Croatia
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Blinova E, Pakhomov D, Shimanovsky D, Kilmyashkina M, Mazov Y, Demura T, Drozdov V, Blinov D, Deryabina O, Samishina E, Butenko A, Skachilova S, Sokolov A, Vasilkina O, Alkhatatneh BA, Vavilova O, Sukhov A, Shmatok D, Sorokvasha I, Tumutolova O, Lobanova E. Cerium-Containing N-Acetyl-6-Aminohexanoic Acid Formulation Accelerates Wound Reparation in Diabetic Animals. Biomolecules 2021; 11:biom11060834. [PMID: 34205061 PMCID: PMC8230275 DOI: 10.3390/biom11060834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/29/2021] [Accepted: 06/01/2021] [Indexed: 01/05/2023] Open
Abstract
Background: The main goal of our study was to explore the wound-healing property of a novel cerium-containing N-acethyl-6-aminohexanoate acid compound and determine key molecular targets of the compound mode of action in diabetic animals. Methods: Cerium N-acetyl-6-aminohexanoate (laboratory name LHT-8-17) as a 10 mg/mL aquatic spray was used as wound experimental topical therapy. LHT-8-17 toxicity was assessed in human skin epidermal cell culture using (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. A linear wound was reproduced in 18 outbred white rats with streptozotocin-induced (60 mg/kg i.p.) diabetes; planar cutaneous defect was modelled in 60 C57Bl6 mice with streptozotocin-induced (200 mg/kg i.p.) diabetes and 90 diabetic db/db mice. Firmness of the forming scar was assessed mechanically. Skin defect covering was histologically evaluated on days 5, 10, 15, and 20. Tissue TNF-α, IL-1β and IL-10 levels were determined by quantitative ELISA. Oxidative stress activity was detected by Fe-induced chemiluminescence. Ki-67 expression and CD34 cell positivity were assessed using immunohistochemistry. FGFR3 gene expression was detected by real-time PCR. LHT-8-17 anti-microbial potency was assessed in wound tissues contaminated by MRSA. Results: LHT-8-17 4 mg twice daily accelerated linear and planar wound healing in animals with type 1 and type 2 diabetes. The formulated topical application depressed tissue TNF-α, IL-1β, and oxidative reaction activity along with sustaining both the IL-10 concentration and antioxidant capacity. LHT-8-17 induced Ki-67 positivity of fibroblasts and pro-keratinocytes, upregulated FGFR3 gene expression, and increased tissue vascularization. The formulation possessed anti-microbial properties. Conclusions: The obtained results allow us to consider the formulation as a promising pharmacological agent for diabetic wound topical treatment.
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MESH Headings
- Administration, Topical
- Aminocaproates/administration & dosage
- Aminocaproates/metabolism
- Animals
- Cerium/administration & dosage
- Cerium/metabolism
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 1/drug therapy
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Female
- Humans
- Male
- Mice
- Mice, Inbred C57BL
- Rats
- Wound Healing/drug effects
- Wound Healing/physiology
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Affiliation(s)
- Ekaterina Blinova
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
- Department of Morphology, National Research Nuclear University MEPHI, 31 Kashirskoe Highway, 115409 Moscow, Russia
| | - Dmitry Pakhomov
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Denis Shimanovsky
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Marina Kilmyashkina
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Yan Mazov
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Tatiana Demura
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Vladimir Drozdov
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Dmitry Blinov
- Laboratory of Molecular Pharmacology and Drug Design, Department of Pharmaceutical Chemistry, All-Union Research Center for Biological Active Compounds Safety, 23 Kirova Street, 142450 Staraya Kupavna, Russia; (E.S.); (S.S.); (I.S.)
- Correspondence: ; Tel.: +7-927-197-1422
| | - Olga Deryabina
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Elena Samishina
- Laboratory of Molecular Pharmacology and Drug Design, Department of Pharmaceutical Chemistry, All-Union Research Center for Biological Active Compounds Safety, 23 Kirova Street, 142450 Staraya Kupavna, Russia; (E.S.); (S.S.); (I.S.)
| | - Aleksandra Butenko
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Sofia Skachilova
- Laboratory of Molecular Pharmacology and Drug Design, Department of Pharmaceutical Chemistry, All-Union Research Center for Biological Active Compounds Safety, 23 Kirova Street, 142450 Staraya Kupavna, Russia; (E.S.); (S.S.); (I.S.)
| | - Alexey Sokolov
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Olga Vasilkina
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Bashar A. Alkhatatneh
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Olga Vavilova
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Andrey Sukhov
- Department of Clinical Anatomy and Operative Surgery, Department of Pathological Anatomy, Institute for Regenerative Medicine, Sechenov University, 8/1 Trubetzkaya Street, 119991 Moscow, Russia; (E.B.); (D.S.); (Y.M.); (T.D.); (V.D.); (A.B.); (A.S.); (O.V.); (A.S.)
| | - Daniil Shmatok
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Ilya Sorokvasha
- Laboratory of Molecular Pharmacology and Drug Design, Department of Pharmaceutical Chemistry, All-Union Research Center for Biological Active Compounds Safety, 23 Kirova Street, 142450 Staraya Kupavna, Russia; (E.S.); (S.S.); (I.S.)
| | - Oxana Tumutolova
- Laboratory of Pharmacology, Department of Pathology, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Street, 430005 Saransk, Russia; (D.P.); (M.K.); (O.D.); (O.V.); (B.A.A.); (D.S.); (O.T.)
| | - Elena Lobanova
- Department of Pharmacology, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, 20/1 Delegatskaya Street, 127473 Moscow, Russia;
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Chotorlishvili L, Khomeriki R, Sukhov A, Ruffo S, Berakdar J. Dynamics of localized modes in a composite multiferroic chain. Phys Rev Lett 2013; 111:117202. [PMID: 24074117 DOI: 10.1103/physrevlett.111.117202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 08/19/2013] [Indexed: 06/02/2023]
Abstract
In a coupled ferroelectric-ferromagnetic system, i.e., a composite multiferroic, the propagation of magnetic or ferroelectric excitations across the whole structure is a key issue for applications. Of special interest is the dynamics of localized magnetic or ferroelectric modes (LM) across the ferroelectric-ferromagnetic interface, particularly when the LM's carrier frequency is in the band of the ferroelectric and in the band gap of the ferromagnet. For a proper choice of the system's parameters, we find that there is a threshold amplitude above which the interface becomes transparent and an in-band ferroelectric LM penetrates the ferromagnetic array. Below that threshold, the LM is fully reflected. Slightly below this transmission threshold, the addition of noise may lead to energy transmission, provided that the noise level is neither too low nor too high, an effect that resembles stochastic resonance. These findings represent an important step towards the application of ferroelectric and/or ferromagnetic LM-based logic.
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Affiliation(s)
- L Chotorlishvili
- Institut für Physik, Martin-Luther-Universität Halle-Wittenberg, D-06120 Halle/Saale, Germany
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