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Browsing Articole din publicaţii internaţionale by Author "RAEVSCHI, Simion"

Browsing Articole din publicaţii internaţionale by Author "RAEVSCHI, Simion"

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  • Advanced Hybrid GaN/ZnO Nanoarchitectured Microtubes for Fluorescent Micromotors Driven by UV Light 
    WOLFF, Niklas; CIOBANU, Vladimir; ENACHI, Mihail; KAMP, Marius; BRANISTE, Tudor; DUPPEL, Viola; SHREE, Sindu; RAEVSCHI, Simion; MEDINA-SÁNCHEZ, Mariana; ADELUNG, Rainer; SCHMIDT, Oliver G.; KIENLE, Lorenz; TIGINYANU, Ion (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2020)
    The development of functional microstructures with designed hierarchical and complex morphologies and large free active surfaces offers new potential for improvement of the pristine microstructures properties by the ...
  • Aero-Ga2O3 Nanomaterial Electromagnetically Transparent from Microwaves to Terahertz for Internet of Things Applications 
    BRANISTE, Tudor; DRAGOMAN, Mircea; ZHUKOV, Sergey; ALDRIGO, Martino; CIOBANU, Vladimir; IORDANESCU, Sergiu; ALYABYEVA, Liudmila; FUMAGALLI, Francesco; CECCONE, Giacomo; RAEVSCHI, Simion; SCHÜTT, Fabian; ADELUNG, Rainer; COLPO, Pascal; GORSHUNOV, Boris; TIGINYANU, Ion (MDPI (Basel, Switzerland), 2020)
    In this paper, fabrication of a new material is reported, the so-called Aero-Ga2O3 or Aerogallox, which represents an ultra-porous and ultra-lightweight three-dimensional architecture made from interconnected microtubes ...
  • Characterization of GaN thin films and Eu-doped GaN nanowires and nanoparticles produced on the basis of Ga2O3 nanomaterial 
    RUSU, Emil; URSAKI, Veacheslav; CULEAC, Ion; SIMINEL, Anatolii; RAEVSCHI, Simion; VLAZAN, Paulina; NICORICI, Alexandr (Academia de Ştiinţe a Moldovei, 2016)
    Due to advantageous properties such as wide bandgap, pronounced chemical and thermal stability, gallium nitride is currently considered as one of the most important semiconductor materials for practical applications. We ...
  • A comparative study of GaN and Ga2O3 nanocrystals obtained by hydrothermal and solid state phase reactions 
    RUSU, Emil; URSAKI, Veacheslav; SIMINEL, Anatolii; RAEVSCHI, Simion; VLAZAN, Paulina (Institutul de Fizică Aplicată, 2014)
    There is actually a considerable interest in the preparation of nanoparticles on the basis of semiconductor and oxide materials due to the influence of nanoparticle dimensionality upon their optical, radiative, and magnetic ...
  • Electromagnetic interference shielding in X-band with aero-GaN 
    DRAGOMAN, Mircea; BRANISTE, Tudor; IORDANESCU, Sergiu; ALDRIGO, Martino; RAEVSCHI, Simion; SHREE, Sindu; ADELUNG, Rainer; TIGINYANU, Ion (IOP Publishing, 2019)
    We investigate the electromagnetic shielding properties of an ultra-porous lightweight nanomaterial named aerogalnite (aero-GaN). Aero-GaN is made up of randomly arranged hollow GaN microtetrapods, which are obtained by ...
  • Highly Porous and Ultra-Lightweight Aero-Ga2O3: Enhancement of Photocatalytic Activity by Noble Metals 
    PLESCO, Irina; CIOBANU, Vladimir; BRANISTE, Tudor; URSAKI, Veaceslav; RASCH, Florian; SARUA, Andrei; RAEVSCHI, Simion; ADELUNG, Rainer; DUTTA, Joydeep; TIGINYANU, Ion (MDPI, 2021)
    A new type of photocatalyst is proposed on the basis of aero-β-Ga2O3, which is a material constructed from a network of interconnected tetrapods with arms in the form of microtubes with nanometric walls. The aero-Ga2O3 ...
  • The interaction between Endothelial Cells and Gallium Nitride nanoparticles 
    BRANISTE, Tudor; ANDREE, Birgit; BENECKE, Nils; RAEVSCHI, Simion; PLESCO, Irina; CEBOTARI, Serghei; HAVERICH, Axel; TIGHINEANU, Ion; HILFIKER, Andres (Academia de Ştiinţe a Moldovei, 2019)
    In this study, human umbilical vein endothelial cells (HUVECs) were investigated in direct contact with Gallium Nitride (GaN/Fe) based nanoparticles. GaN is a compound semiconductor material, with remarkable characteristics ...
  • Mesenchymal stem cells proliferation and remote manipulation upon exposure to magnetic semiconductor nanoparticles 
    BRANISTE, Tudor; COBZAC, Vitalie; ABABII, Polina; PLESCO, Irina; RAEVSCHI, Simion; DIDENCU, Alexandru; MANIUC, Mihail; NACU, Viorel; ABABII, Ion; TIGINYANU, Ion (ELSEVIER, 2020)
    In this paper, we report on spatial redistribution of bone marrow mesenchymal stem cells loaded with magnetic nanoparticles under the influence of continuously applied magnetic field. Semiconductor nanoparticles were ...
  • Self-organized and self-propelled aero-GaN with dual hydrophilic-hydrophobic behaviour 
    TIGINYANU, Ion; BRANISTE, Tudor; SMAZNA, Daria; DENG, Mao; SCHÜTT, Fabian; SCHUCHARDT, Arnim; STEVENS-KALCEFF, Marion A.; RAEVSCHI, Simion; SCHÜRMANN, Ulrich; KIENLE, Lorenz; PUGNO, Nicola M.; MISHRA, Yogendra Kumar; ADELUNG, Rainer (ELSEVIER, 2019)
    Nature utilizes hydrophilic-hydrophobic biomolecular entities to perform self-organized structural and functional tasks, including the formation of cellular compartments and motion, separation of chemicals or self-healing ...
  • Self-Organized Three-Dimensional Nanostructured Architectures in Bulk GaN Generated by Spatial Modulation of Doping 
    TIGINYANU, Ion; STEVENS-KALCEFF, Marion A.; SARUA, Andrei; BRANISTE, Tudor; MONAICO, Eduard; POPA, Veaceslav; ANDRADE, Hugo D.; THOMAS, James O.; RAEVSCHI, Simion; SCHULTE, Karl; ADELUNG, Rainer (The Electrochemical Society, 2016)
    Self-organized 3D nanostructured architectures including quasi-ordered concentric hexagonal structures generated during the growth of single crystalline n-GaN substrates by hydride vapor phase epitaxy (HVPE) are reported. ...
  • Self-Propelled Aero-GaN Based Liquid Marbles Exhibiting Pulsed Rotation on the Water Surface 
    BRANISTE, Tudor; CIOBANU, Vladimir; SCHÜTT, Fabian; MIMURA, Hidenori; RAEVSCHI, Simion; ADELUNG, Rainer; PUGNO, Nicola M.; TIGINYANU, Ion (MDPI, 2021)
    We report on self-propelled rotating liquid marbles fabricated using droplets of alcoholic solution encapsulated in hollow microtetrapods of GaN with hydrophilic free ends of their arms and hydrophobic lateral walls. Apart ...
  • Sensing up to 40atm Using Pressure-Sensitive Aero-GaN 
    DRAGOMAN, Mircea; CIOBANU, Vladimir; SHREE, Sindu; DRAGOMAN, Daniela; BRANISTE, Tudor; RAEVSCHI, Simion; DINESCU, Adrian; SARUA, Andrei; MISHRA, Yogendra K.; PUGNO, Nicola; ADELUNG, Rainer; TIGINYANU, Ion (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2019)
    This work reports on the fabrication and characterization of a robust pressure sensor based on aero-GaN. The ultraporous aeromaterial consists of GaN interconnected hollow micro-tetrapods with the wall thickness of about ...
  • Targeting Endothelial Cells with Multifunctional GaN/Fe Nanoparticles 
    BRANISTE, Tudor; TIGINYANU, Ion; HORVATH, Tibor; RAEVSCHI, Simion; ANDRÉE, Birgit; CEBOTARI, Serghei; BOYLE, Erin C.; HAVERICH, Axel; HILFIKER, Andres (Springer Nature Switzerland, 2017)
    In this paper, we report on the interaction of multifunctional nanoparticles with living endothelial cells. The nanoparticles were synthesized using direct growth of gallium nitride on zinc oxide nanoparticles alloyed with ...
  • Terahertz shielding properties of aero-GaN 
    BRANISTE, Tudor; ZHUKOV, Sergey; DRAGOMAN, Mircea; ALYABYEVA, Liudmila; CIOBANU, Vladimir; ALDRIGO, Martino; DRAGOMAN, Daniela; IORDANESCU, Sergiu; SHREE, Sindu; RAEVSCHI, Simion; ADELUNG, Rainer; GORSHUNOV, Boris; TIGINYANU, Ion (IOP Publishing, 2019)
    The electrodynamic properties of the first aero-material based on compound semiconductor, namely of Aero-GaN, in the terahertz frequency region are experimentally investigated. Spectra of complex dielectric permittivity, ...
  • Three-dimensional Aerographite-GaN hybrid networks: single step fabrication of porous and mechanically flexible materials for multifunctional applications 
    SCHUCHARDT, Arnim; BRANISTE, Tudor; MISHRA, Yogendra K.; DENG, Mao; MECKLENBURG, Matthias; STEVENS-KALCEFF, Marion A.; RAEVSCHI, Simion; SCHULTE, Karl; KIENLE, Lorenz; ADELUNG, Rainer; IGINYANU, Ion T (Springer Nature, 2015)
    Three dimensional (3D) elastic hybrid networks built from interconnected nano- and microstructure building units, in the form of semiconducting-carbonaceous materials, are potential candidates for advanced technological ...

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