Browsing by Subject "laser"

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  • Weber, Moritz; Hoheisel, Anna L.; Glasmacher, Birgit (Berlin, Boston : De Gruyter, 2016)
    Using the electrospinning process the geometry of a heart valve is not replicable by just one manufacturing process. To produce heart valve scaffolds the heart valve leaflets and the vessel have to be produced in separated ...
  • Petersen, Svea; Soller, Jan T.; Wagner, Siegfried; Richter, Andreas; Bullerdiek, Jörn; Nolte, Ingo; Barcikowski, Stephan; Murua Escobar, Hugo (London : Biomed Central, 2009)
    Ultrashort pulsed laser ablation in liquids represents a powerful tool for the generation of pure gold nanoparticles (AuNPs) avoiding chemical precursors and thereby making them especially interesting for biomedical ...
  • Durán, Maria Carolina; Willenbrock, Saskia; Barchanski, Annette; Müller, Jessika-M.V.; Maiolini, Arianna; Soller, Jan T.; Barcikowski, Stephan; Nolte, Ingo; Feige, Karsten; Murua Escobar, Hugo (London : Biomed Central, 2011)
    Background: Reproducibly high transfection rates with low methodology-induced cytotoxic side effects are essential to attain the required effect on targeted cells when exogenous DNA is transfected. Different approaches and ...
  • Gruene, Martin; Unger, Claudia; Koch, Lothar; Deiwick, Andrea; Chichkov, Boris (London : Biomed Central, 2011)
    Background: Laser-assisted bioprinting of multi-cellular replicates in accordance with CAD blueprint may substantially improve our understandings of fundamental aspects of 3 D cell-cell and cell-matrix interactions in ...
  • Tinne, Nadine; Knoop, Gesche; Kallweit, Nicole; Veith, Sonja; Bleeker, Sebastian; Lubatschowski, Holger; Krüger, Alexander; Ripken, Tammo (Bellingham, WA : SPIE - International Society for Optical Engineering, 2014)
    We present a time-resolved photographic analysis of the pulse-to-pulse interaction. In particular, we studied the influence of the cavitation bubble induced by a fs-pulse on the optical focusing of the consecutive pulse ...
  • Schlie, Sabrina; Fadeeva, Elena; Koch, Jürgen; Ngezahayo, Anaclet; Chichkov, Boris (London : SAGE Publications Ltd., 2010)
    In this study we investigate the potential of femtosecond laser generated micrometer sized spike structures as functional surfaces for selective cell controlling. The spike dimensions as well as the average spike to spike ...
  • Johannsmeier, Sonja; Heeger, Patrick; Terakawa, Mitsuhiro; Kalies, Stefan; Heisterkamp, Alexander; Ripken, Tammo; Heinemann, Dag (London : Nature Publishing Group, 2018)
    Stimulation of neuronal cells generally resorts to electric signals. Recent advances in laser-based stimulation methods could present an alternative with superior spatiotemporal resolution. The avoidance of electronic ...
  • Tinne, Nadine; Kaune, Brigitte; Krüger, Alexander; Ripken, Tammo (San Francisco, CA : Public Library of Science (PLoS), 2014)
    The emerging use of femtosecond lasers with high repetition rates in the MHz regime together with limited scan speed implies possible mutual optical and dynamical interaction effects of the individual cutting spots. In ...
  • García Marín, A.F.; Heinzel, Gerhard; Danzmann, Karsten (Bristol : IOP Publishing Ltd., 2007)
    The Laser Interferometer Space Antenna (LISA) is a joint ESA-NASA mission designed to observe gravitational waves in the frequency range between 10 -4 to 1 Hz, where ground-based detectors are limited by terrestrial noise. ...
  • Kalies, Stefan; Antonopoulos, Georgios C.; Rakoski, Mirko S.; Heinemann, Dag; Schomaker, Markus; Ripken, Tammo; Meyer, Heiko (San Francisco, CA : Public Library of Science (PLoS), 2015)
    Laser based cell manipulation has proven to be a versatile tool in biomedical applications. In this context, combining weakly focused laser pulses and nanostructures, e.g. gold nanoparticles, promises to be useful for high ...
  • Dehne, Marina; Cervantes, Felipe Guzman; Sheard, Benjamin; Heinzel, Gerhard; Danzmann, Karsten (Bristol : IOP Publishing Ltd., 2009)
    The Gravity Recovery and Climate Experiment (GRACE) is one of the present missions to map the Earth's gravity field. The aim of a GRACE follow-on mission is to map the gravitational field of the Earth with higher resolution ...
  • Schimek, M.; Springer, A.; Kaierle, S.; Kracht, D.; Wesling, V. (Amsterdam : Elsevier B.V., 2012)
    By reducing vehicle weight, a significant increase in fuel efficiency and consequently a reduction in CO 2 emissions can be achieved. Currently a high interest in the production of hybrid weld seams between steel and ...
  • Chatzizyrli, Elisavet; Tinne, Nadine; Lachmayer, Roland; Neumann, Jörg; Kracht, Dietmar (Bellingham, WA : S P I E - International Society for Optical Engineering, 2017)
    The development of laser-based lighting systems has been the latest step towards a revolution in illumination technology brought about by solid-state lighting. Laser-activated remote phosphor systems produce white light ...
  • Krawinkel, Judith; Richter, Undine; Torres-Mapa, Maria Leilani; Westermann, Martin; Gamrad, Lisa; Rehbock, Christoph; Barcikowski, Stephan; Heisterkamp, Alexander (London : BioMed Central Ltd., 2016)
    Background: Cell-penetrating peptides (CPPs) can act as carriers for therapeutic molecules such as drugs and genetic constructs for medical applications. The triggered release of the molecule into the cytoplasm can be ...
  • Kallweit, N.; Baumhoff, P.; Krueger, A.; Tinne, N.; Kral, A.; Ripken, Tammo; Maier, H. (London : Nature Publishing Group, 2016)
    Optical stimulation of the cochlea with laser light has been suggested as an alternative to conventional treatment of sensorineural hearing loss with cochlear implants. The underlying mechanisms are controversially discussed: ...
  • Machida, Manan; Nakajima, Yasutaka; Torres-Mapa, Maria Leilani; Heinemann, Dag; Heisterkamp, Alexander; Terakawa, Mitsuhiro (London : Nature Publishing Group, 2018)
    The integration of metal microstructures and soft materials is promising for the realization of novel optical and biomedical devices owing to the flexibility and biocompatibility of the latter. Nevertheless, the fabrication ...
  • Dooley, K.L.; Akutsu, T.; Dwyer, S.; Puppo, P. (Bristol : IOP Publishing Ltd, 2015)
    Ground-based laser interferometers for gravitational-wave (GW) detection were first constructed starting 20 years ago and as of 2010 collection of several years' worth of science data at initial design sensitivities was ...
  • Dooley, K.L.; et al.; LIGO Scientific Collaboration (Bristol : IOP Publishing Ltd, 2015)
    The German-British laser-interferometric gravitational wave detector GEO 600 is in its 13th year of operation since its first lock in 2001. After participating in science runs with other first generation detectors, GEO 600 ...
  • Schlie, Sabrina; Ngezahayo, Anaclet; Ovsianikov, Aleksandr; Fabian, Tilman; Kolb, Hans-Albert; Haferkamp, Heinz; Chichkov, Boris (London : SAGE Publications Ltd., 2007)
    Two-photon polymerization technique was applied to generate three-dimensional (3D) scaffold-like structures using the photosensitive organic-inorganic hybrid polymer ORMOCER®. The structures were studied with respect to ...
  • Swierad, Dariusz; Häfner, Sebastian; Vogt, Stefan; Venon, Bertrand; Holleville, David; Bize, Sebastien; Kulosa, André; Bode, Sebastian; Singh, Yeshpal; Bongs, Kai; Rasel, Ernst Maria; Lodewyck, Jerome; Le Targat, Rodolphe; Lisdat, Christian; Sterr, Uwe (London : Nature Publishing Group, 2016)
    The increasing performance of optical lattice clocks has made them attractive for scientific applications in space and thus has pushed the development of their components including the interrogation lasers of the clock ...