Now showing items 1-20 of 3827

    • Analysis of the mosaic defects in graded and non graded InxGa1‐xN solar cell structures 

      Kars Durukan, İ.; Öztürk, M. K.; Özçelik, S.; Özbay, Ekmel (Süleyman Demirel Üniversitesi, 2017)
      In this study, graded (A) InxGa1‐xN (10.5 ≤ x ≤ 18.4) and non graded (B) InxGa1‐xN (13.6 ≤ x ≤ 24.9) samples are grown on c‐oriented sapphire substrate using the Metal Organic Chemical Vapour Deposition (MOCVD) technique. ...
    • An exploration of new avenues regarding deep tissue penetration and higher singlet oxygen efficiencies: novel near-IR photosensitizers for photodynamic therapy 

      Yeşilgül, Nisa; Kılıç, Bilal (TÜBİTAK, 2019)
      A series of novel BODIPY-bearing electron-withdrawing groups at the meso position are reported here. According to the optical measurements, it may be clearly seen that the introduction of electron-donating groups into ...
    • Administration of bone marrow derived mesenchymal stem cells modulate tlr expression during liver regeneration 

      Koçak, H.; Tokçaer Keskin, Z.; İnsal, B.; Gürsel, İhsan; Akçalı, K. C. (Trakya Üniversitesi, 2019)
      Liver cell transplantation is a powerful alternative to orthotopic cell transplantation in the treatment of liver failures. Recently, considerable effort is being channeled to understand the nature and kinetics of directing ...
    • Extremely charged static dust distributions in general relativity 

      Gürses, Metin (World Scientific, 1998)
      Conformo static charged dust distributions are investigated in the framework of general relativity. Einstein’s equations reduce to a non-linear version of Poisson’s equation and Maxwell’s equations imply the equality of ...
    • Novel anti-HER2 monoclonal antibodies: synergy and antagonism with tumor necrosis factor-α 

      Ceran, Ceyhan; Çokol, M.; Cingöz, S.; Taşan, İpek; Öztürk, Mehmet; Yağcı, Tamer (BioMed Central, 2012)
      Background: One-third of breast cancers display amplifications of the ERBB2 gene encoding the HER2 kinase receptor. Trastuzumab, a humanized antibody directed against an epitope on subdomain IV of the extracellular domain ...
    • PATIKA: an integrated visual environment for collaborative construction and analysis of cellular pathways 

      Demir, Emek; Babur, Özgün; Doğrusöz, Uğur; Gürsoy, Atilla; Nişancı, Gürkan; Çetin Atalay, Rengül; Öztürk, Mehmet (American Society for Biochemistry and Molecular Biology(ASBMB), 2002-09)
    • Reply to tzoulis et al.: genetic and clinical heterogeneity of essential tremor 

      Gülsuner, Hilal Ünal; Gülsuner, S.; Mercan, F.; Onat, Onur Emre; Walsh, T.; Shahin, H.; Lee, M.; Dogu, O.; Kansu, T.; Topaloglu, H.; Elibol, B.; Akbostanci, C.; King, M. -C.; Özçelik, Tayfun; Tekinay, Ayse B. (National Academy of Sciences, 2015)
      In addressing our recent report of HTRA2 p.G399S as the gene and mutation responsible for essential tremor and subsequent Parkinson disease in a large kindred (1), Tzoulis et al. (2) screened this mutation in patients with ...
    • Generation of cylindrical vector beams with few-mode fibers excited by Laguerre–Gaussian beams 

      Volpe, Giovanni; Petrov, D. (Elsevier, 2004-07-01)
      We propose a novel method to efficiently produce light beams with radial, azimuthal, and hybrid polarization, through a few-mode fiber excited by a Laguerre–Gaussian beam. With different input polarization we can selectively ...
    • Surface plasmon radiation forces 

      Volpe, Giovanni; Quidant, R.; Badenes, G.; Petrov, D. (The American Physical Society, 2006-06)
      We report the first experimental observation of momentum transfer from a surface plasmon to a single dielectric sphere. Using a photonic force microscope, we measure the plasmon radiation forces on different polystyrene ...
    • Torque detection using brownian fluctuations 

      Volpe, Giovanni; Petrov, D. (The American Physical Society, 2006-11-24)
      We report the statistical analysis of the movement of a submicron particle confined in a harmonic potential in the presence of a torque. The absolute value of the torque can be found from the auto- and cross-correlation ...
    • Quantitative assessment of non-conservative radiation forces in an optical trap 

      Pesce, G.; Volpe, Giovanni; De Luca, A. C.; Rusciano, G.; Volpe, G. (Institute of Physics Publishing, 2009-05)
      The forces acting on an optically trapped particle are usually assumed to be conservative. However, the presence of a non-conservative component has recently been demonstrated. Here, we propose a technique that permits one ...
    • Novel perspectives for the application of total internal reflection microscopy 

      Volpe, Giovanni; Brettschneider, T.; Helden, L.; Bechinger, C. (Optical Society of America, 2009-12)
      Total Internal Reflection Microscopy (TIRM) is a sensitive non-invasive technique to measure the interaction potentials between a colloidal particle and a wall with femtonewton resolution. The equilibrium distribution of ...
    • Influence of noise on force measurements 

      Volpe, Giovanni; Helden, L.; Brettschneider, T.; Wehr, J.; Bechinger, C. (The American Physical Society, 2010-04)
      We demonstrate how the ineluctable presence of thermal noise alters the measurement of forces acting on microscopic and nanoscopic objects. We quantify this effect exemplarily for a Brownian particle near a wall subjected ...
    • Microswimmers in patterned environments 

      Volpe, Giovanni; Buttinoni, I.; Vogt, D.; Kümmerer, H.- J.; Bechinger, C. (The Royal Society of Chemistry, 2011-07-14)
      Tiny self-propelled swimmers capable of autonomous navigation through complex environments provide appealing opportunities for localization, pick-up and delivery of microscopic and nanoscopic objects. Inspired by motile ...
    • Printed multilayer superstructures of aligned single-walled carbon nanotubes for electronic applications 

      Kang, S. J.; Kocabaş, Coşkun; Kim, H.-S.; Cao, Q.; Meitl, M. A.; Khang, D.-Y.; Rogers, J. A. (American Chemical Society, 2007-10)
      We developed means to form multilayer superstructures of large collections of single-walled carbon nanotubes (SWNTs) configured in horizontally aligned arrays, random networks, and complex geometries of arrays and networks ...
    • Molecular scale buckling mechanics in individual aligned single-wall carbon nanotubes on elastomeric substrates 

      Khang, D. -Y.; Xiao, J.; Kocabaş, Coşkun; MacLaren, S.; Banks, T.; Jiang, H.; Huang, Y. Y.; Rogers, J. A. (American Chemical Society, 2008)
      We have studied the scaling of controlled nonlinear buckling processes in materials with dimensions in the molecular range (i.e., ∼1 nm) through experimental and theoretical studies of buckling in individual single-wall ...
    • A 500 MHz carbon nanotube transistor oscillator 

      Pesetski, A. A.; Baumgardner, J. E.; Krishnaswamy, S. V.; Zhang, H.; Adam, J. D.; Kocabaş, Coşkun; Banks, T.; Rogers, J. A. (American Institute of Physics, 2008-09)
      Operation of a carbon nanotube field effect transistor (FET) oscillator at a record frequency of 500 MHz is described. The FET was fabricated using a large parallel array of single-walled nanotubes grown by chemical vapor ...
    • Alignment controlled growth of single-walled carbon nanotubes on quartz substrates 

      Xiao, J.; Dunham, S.; Liu, P.; Zhang, Y.; Kocabaş, Coşkun; Moh, L.; Huang, Y.; Hwang, K. -C.; Lu, C.; Huang, W.; Rogers, J. A. (American Chemical Society, 2009-09-11)
      Single-walled carbon nanotubes (SWNTs) possess extraordinary electrical properties, with many possible applications in electronics. Dense, horizonally aligned arrays of linearly configured SWNTs represent perhaps the most ...
    • High-frequency performance of submicrometer transistors that use aligned arrays of single-walled carbon nanotubes 

      Kocabaş, Coşkun; Dunham, S.; Cao, Q.; Cimino, K.; Ho, X.; Kim, H.-S.; Dawson, D.; Payne, J.; Stuenkel, M.; Zhang, H.; Banks, T.; Feng, M.; Rotkin, S. V.; Rogers, J. A. (American Chemical Society, 2009-04-08)
      The unique electronic properties of single-walled carbon nanotubes (SWNTs) make them promising candidates for next generation electronics, particularly in systems that demand high frequency (e.g., radio frequency, RF) ...
    • Future outlook 

      Erdem, Talha; Demir, Hilmi Volkan (Springer, 2019-01)
      In this final Chapter, we present a future perspective for the light source design. We discuss the existing problems and briefly introduce new material systems and device architectures that can overcome the current issues.