Browsing by Subject "Lasers"

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  • Pfeifer, Ronny; Müller, Christian W.; Hurschler, Christof; Kaierle, Stefan; Wesling, Volker; Haferkamp, Heinz (Amsterdam : Elsevier B.V., 2013)
    Apart from biological factors, the bone healing process strongly depends on the mechanical properties of the implant applied. The stiffness of the implant influences the micro-motion, one of the most important stimuli of ...
  • Von Witzendorff, Philipp; Pohl, Leonhard; Suttmann, Oliver; Heinrich, Peter; Heinrich, Achim; Zander, Jörg; Bragard, Holger; Kaierle, Stefan (Amsterdam : Elsevier B.V., 2018)
    Additive manufacturing is used in several industrial sectors where polymers and metals are established materials. Different academic studies prove that additive manufacturing methods can be applied on glass materials using ...
  • Kaartinen, Harri; Hyyppä, Juha; Yu, Xiaowei; Vastaranta, Mikko; Hyyppä, Hannu; Kukko, Antero; Holopainen, Markus; Heipke, Christian; Hirschmugl, Manuela; Morsdorf, Felix; Næsset, Erik; Pitkänen, Juho; Popescu, Sorin; Solberg, Svein; Wolf, Bern Michael; Wu, Jee-Cheng (Basel : MDPI AG, 2012)
    The objective of the "Tree Extraction" project organized by EuroSDR (European Spatial data Research) and ISPRS (International Society of Photogrammetry and Remote Sensing) was to evaluate the quality, accuracy, and feasibility ...
  • 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 ...
  • Matthias, Steffen; Kästner, Markus; Reithmeier, Eduard (Bellingham, WA : S P I E - International Society for Optical Engineering, 2016)
    The inspection of functional elements is a crucial part of modern production cycles. However, with higher integration of production machinery and products, the accessibility for measurement systems is more and more limited. ...
  • 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 ...
  • Bice, Ismet; Celik, Hilal; Wolff, Christopher; Beutel, Sascha; Zahid, Maria; Hitzmann, Bernd; Rinas, Ursula; Kasper, Cornelia; Gerardy-Schahn, Rita; Scheper, Thomas (Weinheim : Wiley-VCH Verlag, 2013)
    Polysialic acid (polySia) is a carbohydrate polymer of varying chain length. It is a promising scaffold material for tissue engineering. In this work, high chain length polySia was produced by an Escherichia coli K1 strain ...
  • 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 ...
  • Hinken, David; Schinke, Carsten; Herlufsen, Sandra; Schmidt, Arne; Bothe, Karsten; Brendel, Rolf (College Park, MD : American Institute of Physics, 2011)
    We report in detail on the luminescence imaging setup developed within the last years in our laboratory. In this setup, the luminescence emission of silicon solar cells or silicon wafers is analyzed quantitatively. Charge ...
  • 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 ...
  • Heinemann, Dag; Schomaker, Markus; Kalies, Stefan; Schieck, Maximilian; Carlson, Regina; Murua Escobar, Hugo; Ripken, Tammo; Meyer, Heiko; Heisterkamp, Alexander (San Francisco, California, US : PLOS, 2013)
    Laser based transfection methods have proven to be an efficient and gentle alternative to established molecule delivery methods like lipofection or electroporation. Among the laser based methods, gold nanoparticle mediated ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Chatzizyrli, Elisavet; Tinne, Nadine; Lachmayer, Roland; Neumann, Jörg; Kracht, Dietmar (Bellingham, WA : SPIE - International Society for Optical Engineering, 2018)
    A new family of lighting products is developed as laser diodes replace LEDs in the remote phosphor configuration. The resulting lighting systems, also known as laser-excited remote phosphor systems, exhibit advanced ...
  • 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: ...
  • Nölke, C.; Claußen, S.; Dudziak, S.; Haferkamp, H.; Barcikowski, S. (Amsterdam : Elsevier B.V., 2010)
    Laser dispersing offers a great potential to fabricate layers or tracks with tailored properties threat duce abrasive or adhesive wear at the surface of highly stressed components. Different ceramic powder materials like ...
  • Moalem, A.; Von Witzendorff, Philipp; Stute, U.; Overmeyer, Ludger (Amsterdam : Elsevier B.V., 2012)
    We demonstrate a technique, which significantly enhances the stability of copper welding with laser radiation. After modelling spot welding stability we conclude that oxide layer morphology typical for native oxide layers ...
  • Matena, Julia; Petersen, Svea; Gieseke, Matthias; Kampmann, Andreas; Teske, Michael; Beyerbach, Martin; Murua Escobar, Hugo; Haferkamp, Heinz; Gellrich, Nils-Claudius; Nolte, Ingo (Basel : MDPI AG, 2015)
    To improve well-known titanium implants, pores can be used for increasing bone formation and close bone-implant interface. Selective Laser Melting (SLM) enables the production of any geometry and was used for implant ...