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  1. Article: Laser-Synthesized 2D-MoS

    Salimon, Igor A / Zharkova, Ekaterina V / Averchenko, Aleksandr V / Kumar, Jatin / Somov, Pavel / Abbas, Omar A / Lagoudakis, Pavlos G / Mailis, Sakellaris

    Micromachines

    2023  Volume 14, Issue 5

    Abstract: The direct laser synthesis of periodically nanostructured 2D transition metal dichalcogenide (2D-TMD) films, from single source precursors, is presented here. Laser synthesis of ... ...

    Abstract The direct laser synthesis of periodically nanostructured 2D transition metal dichalcogenide (2D-TMD) films, from single source precursors, is presented here. Laser synthesis of MoS
    Language English
    Publishing date 2023-05-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2620864-7
    ISSN 2072-666X
    ISSN 2072-666X
    DOI 10.3390/mi14051036
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Revealing the static and dynamic nanomechanical properties of diatom frustules-Nature's glass lace.

    Cvjetinovic, Julijana / Luchkin, Sergey Yu / Statnik, Eugene S / Davidovich, Nickolai A / Somov, Pavel A / Salimon, Alexey I / Korsunsky, Alexander M / Gorin, Dmitry A

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 5518

    Abstract: Diatoms are single cell microalgae enclosed in silica exoskeletons (frustules) that provide inspiration for advanced hybrid nanostructure designs mimicking multi-scale porosity to achieve outstanding mechanical and optical properties. Interrogating the ... ...

    Abstract Diatoms are single cell microalgae enclosed in silica exoskeletons (frustules) that provide inspiration for advanced hybrid nanostructure designs mimicking multi-scale porosity to achieve outstanding mechanical and optical properties. Interrogating the structure and properties of diatoms down to nanometer scale leads to breakthrough advances reported here in the nanomechanical characterization of Coscinodiscus oculus-iridis diatom pure silica frustules, as well as of air-dried and wet cells with organic content. Static and dynamic mode Atomic Force Microscopy (AFM) and in-SEM nanoindentation revealed the peculiarities of diatom response with separate contributions from material nanoscale behavior and membrane deformation of the entire valve. Significant differences in the nanomechanical properties of the different frustule layers were observed. Furthermore, the deformation response depends strongly on silica hydration and on the support from the internal organic content. The cyclic loading revealed that the average compliance of the silica frustule is 0.019 m/N and increases with increasing number of cycles. The structure-mechanical properties relationship has a direct impact on the vibrational properties of the frustule as a complex micrometer-sized mechanical system. Lessons from Nature's nanostructuring of diatoms open up pathways to new generations of nano- and microdevices for electronic, electromechanical, photonic, liquid, energy storage, and other applications.
    MeSH term(s) Diatoms/physiology ; Nanostructures/chemistry ; Microscopy, Atomic Force ; Silicon Dioxide/chemistry ; Glass
    Chemical Substances Silicon Dioxide (7631-86-9)
    Language English
    Publishing date 2023-04-04
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-31487-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: FIB-DIC Residual Stress Evaluation in Shot Peened VT6 Alloy Validated by X-ray Diffraction and Laser Speckle Interferometry.

    Somov, Pavel A / Statnik, Eugene S / Kan, Yuliya / Pisarev, Vladimir S / Eleonsky, Svyatoslav I / Ozherelkov, Dmitry Yu / Salimon, Alexey I

    Nanomaterials (Basel, Switzerland)

    2022  Volume 12, Issue 7

    Abstract: Ga-ion micro-ring-core FIB-DIC evaluation of residual stresses in shot peened VT6 (Ti-6Al-4V) alloy was carried out and cross-validated against other non-destructive and semi-destructive residual stresses evaluation techniques, namely, the conventional ... ...

    Abstract Ga-ion micro-ring-core FIB-DIC evaluation of residual stresses in shot peened VT6 (Ti-6Al-4V) alloy was carried out and cross-validated against other non-destructive and semi-destructive residual stresses evaluation techniques, namely, the conventional sin2ψ X-ray diffraction and mechanical hole drilling. The Korsunsky FIB-DIC method of Ga-ion beam micro-ring-core milling within FIB-SEM with Digital Image Correlation (DIC) deformation analysis delivered spatial resolution down to a few micrometers, while the mechanical drilling of circular holes of ~2 mm diameter with laser speckle interferometry monitoring of strains gave a rough spatial resolution of a few millimeters. Good agreement was also found with the X-ray diffraction estimates of residual stress variation profiles as a function of depth. These results demonstrate that FIB-DIC provides rich information down to the micron scale, it also allows reliable estimation of macro-scale residual stresses.
    Language English
    Publishing date 2022-04-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano12071235
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: A SERS platform based on diatomite modified by gold nanoparticles using a combination of layer-by-layer assembly and a freezing-induced loading method.

    Cvjetinovic, Julijana / Merdalimova, Anastasiia A / Kirsanova, Maria A / Somov, Pavel A / Nozdriukhin, Daniil V / Salimon, Alexey I / Korsunsky, Alexander M / Gorin, Dmitry A

    Physical chemistry chemical physics : PCCP

    2022  Volume 24, Issue 15, Page(s) 8901–8912

    Abstract: Siliceous diatom frustules represent an up-and-coming platform for a range of bio-assisted nanofabrication processes able to overcome the complexity and high cost of current engineering technology solutions in terms of negligibly small power consumption ... ...

    Abstract Siliceous diatom frustules represent an up-and-coming platform for a range of bio-assisted nanofabrication processes able to overcome the complexity and high cost of current engineering technology solutions in terms of negligibly small power consumption and environmentally friendly processing combined with unique highly porous structures and properties. Herein, the modification of diatomite - a soft, loose, and fine-grained siliceous sedimentary rock composed of the remains of fossilized diatoms - with gold nanoparticles using layer-by-layer technology in combination with a freezing-induced loading approach is demonstrated. The obtained composite structures are characterized by dynamic light scattering, extinction spectroscopy, scanning (SEM) and transmission electron microscopy (TEM), and photoacoustic imaging techniques, and tested as a platform for surface-enhanced Raman scattering (SERS) using Rhodamine 6G. SEM, TEM, and energy dispersive X-ray spectroscopy (EDX) confirmed a dense coating of gold nanoparticles with an average size of 19 nm on the surface of the diatomite and within the pores. The photoacoustic signal excited at a wavelength of 532 nm increases with increasing loading cycles of up to three polyelectrolyte-gold nanoparticle bilayers. The hybrid materials based on diatomite modified with gold nanoparticles can be used as SERS substrates, but also as biosensors, catalysts, and platforms for advanced bioimaging.
    MeSH term(s) Diatomaceous Earth ; Diatoms/chemistry ; Freezing ; Gold/chemistry ; Metal Nanoparticles/chemistry ; Spectrum Analysis, Raman/methods
    Chemical Substances Diatomaceous Earth (61790-53-2) ; diatomite (68855-54-9) ; Gold (7440-57-5)
    Language English
    Publishing date 2022-04-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d2cp00647b
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Book ; Online: The Lotus Effect

    Somov, Pavel

    Shedding Suffering and Rediscovering Your Essential Self

    2010  

    Abstract: The Lotus Effect offers readers a variety of Buddhist meditative techniques, both ancient and modern, for shedding the worry, rumination, obsessive thinking, and overthinking that causes suffering and prevents people from fully absorbing positive ... ...

    Abstract The Lotus Effect offers readers a variety of Buddhist meditative techniques, both ancient and modern, for shedding the worry, rumination, obsessive thinking, and overthinking that causes suffering and prevents people from fully absorbing positive situations and experiences
    Language English
    Size Online-Ressource (209 p.)
    Publisher New Harbinger Publications
    Publishing place Oakland
    Document type Book ; Online
    Note Description based upon print version of record
    ISBN 9781572249196 ; 1572249196
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  6. Book ; Online: Present Perfect

    Somov, Pavel

    A Mindfulness Approach to Letting Go of Perfectionism and the Need for Control

    2010  

    Abstract: In Present Perfect, psychologist Pavel Somov presents a mindfulness approach that people with perfectionism, obsessive compulsive personality disorder (OCPD), and related controlling tendencies can use to overcome their fear of ... ...

    Abstract In Present Perfect, psychologist Pavel Somov presents a mindfulness approach that people with perfectionism, obsessive compulsive personality disorder (OCPD), and related controlling tendencies can use to overcome their fear of failure
    Language English
    Size Online-Ressource (217 p.)
    Publisher New Harbinger Publications
    Publishing place Oakland
    Document type Book ; Online
    Note Description based upon print version of record
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  7. Article: Spontaneous coronary artery dissection during cisplatin and capecitabine therapy.

    Somov, Pavel / Marchak, Dmitriy / Matusov, Arkhip / Viller, Alexander / Shevchenko, Yuri / Miminoshvili, Archili

    Annals of medicine and surgery (2012)

    2019  Volume 45, Page(s) 1–5

    Abstract: Introduction: Spontaneous coronary artery dissection is a rare cardiovascular disease that can cause acute myocardial infarction and sudden cardiac death. The mechanism of this pathology and the optimal treatment are not fully understood.: ... ...

    Abstract Introduction: Spontaneous coronary artery dissection is a rare cardiovascular disease that can cause acute myocardial infarction and sudden cardiac death. The mechanism of this pathology and the optimal treatment are not fully understood.
    Presentation of case: An acute myocardial infarction developed while a fifty five years old woman with a rectal adenocarcinoma was receiving a cisplatin and capecitabine therapy. Coronary angiography demonstrated a multivessel occlusion of coronary arteries.
    Discussion: The authors discuss several factors that may lead to the spontaneous coronary artery dissection including chemotherapy-induced vasospasm. Chemotherapy based on the cisplatin and capecitabine intake can cause a cardiotoxic effect.
    Conclusion: Thus, spontaneous coronary artery dissection is a disease with an extremely complex etiololy, which does not have a special treatment guide. Management should be considered individually for each case.
    Language English
    Publishing date 2019-07-11
    Publishing country England
    Document type Case Reports
    ZDB-ID 2745440-X
    ISSN 2049-0801
    ISSN 2049-0801
    DOI 10.1016/j.amsu.2019.07.018
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Feasibility, safety and predictors of a successful "blind wiring" antegrade approach in the percutaneous treatment of chronic coronary total occlusions.

    Vescovo, Giovanni M / Somov, Pavel / Zivelonghi, Carlo / Bezzeccheri, Andrea / Scott, Benjamin / Wilgenhof, Adriaan / Willemen, Yannick / Convens, Carl / Verheye, Stefan / Vermeersch, Paul / Agostoni, Pierfrancesco

    Minerva cardiology and angiology

    2022  Volume 71, Issue 1, Page(s) 61–69

    Abstract: Background: Antegrade wiring using only antegrade guiding catheter without contralateral injection (defined as "blind antegrade wiring") may represent a valid initial treatment strategy for selected chronic coronary total occlusions (CTOs) due to the ... ...

    Abstract Background: Antegrade wiring using only antegrade guiding catheter without contralateral injection (defined as "blind antegrade wiring") may represent a valid initial treatment strategy for selected chronic coronary total occlusions (CTOs) due to the potentially lower risk of vascular complications. A careful selection of lesions eligible for this strategy as well as an accurate balance between the likelihood of success and failure is paramount. The aim of the study is to determine the rate of successful revascularization, the potential predictors of failure and the incidence of major complications, when using a "blind antegrade wiring" technique.
    Methods: In this multicentric study, consecutive patients with CTO undergoing percutaneous coronary intervention (PCI) were retrospectively screened. All cases approached using "blind antegrade wiring" technique were included.
    Results: Out of 155 consecutive CTO-PCIs, 94 involved initial "blind antegrade wiring" strategy. Successful revascularization by means of "blind antegrade wiring" technique was achieved in 73 (78%) patients. Final successful revascularization was obtained in 19 of the remaining 21 procedures with "blind antegrade wiring" failure using other techniques (by adding a second contralateral guiding catheter; 98% total successful revascularization). Logistic regression analysis identified higher J-CTO Score as the only predictor of "blind antegrade wiring" failure. One complication occurred (wire-based coronary perforation).
    Conclusions: "Blind antegrade wiring" may be considered as initial strategy for selected CTO-PCI, mainly for CTOs with low J-CTO Score. This strategy would allow in a substantial number of cases to avoid a priori dual injection, keeping it as secondary strategy in case of "blind antegrade wiring" failure.
    MeSH term(s) Humans ; Percutaneous Coronary Intervention/adverse effects ; Coronary Occlusion/diagnostic imaging ; Coronary Occlusion/surgery ; Retrospective Studies ; Feasibility Studies ; Heart Injuries
    Language English
    Publishing date 2022-02-25
    Publishing country Italy
    Document type Multicenter Study ; Journal Article
    ZDB-ID 3059238-0
    ISSN 2724-5772
    ISSN (online) 2724-5772
    DOI 10.23736/S2724-5683.22.05978-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Biological Safety and Biodistribution of Chitosan Nanoparticles.

    Sonin, Dmitry / Pochkaeva, Evgeniia / Zhuravskii, Sergei / Postnov, Viktor / Korolev, Dmitry / Vasina, Lyubov / Kostina, Daria / Mukhametdinova, Daria / Zelinskaya, Irina / Skorik, Yury / Naumysheva, Elena / Malashicheva, Anna / Somov, Pavel / Istomina, Maria / Rubanova, Natalia / Aleksandrov, Ilia / Vasyutina, Marina / Galagudza, Michael

    Nanomaterials (Basel, Switzerland)

    2020  Volume 10, Issue 4

    Abstract: ...

    Abstract :
    Language English
    Publishing date 2020-04-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano10040810
    Database MEDical Literature Analysis and Retrieval System OnLINE

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