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Group of Nanomaterials, Nanotechnology Department, Laser Zentrum Hannover e.V. Hannover/Germany

 

Dr. Laszlo Sajti

Laser Zentrum Hannover e.V.

Hollerithallee 8, 30419 Hannover, Germany

Tel.: +49 511 2788 149

Email: L.Sajti(at)Lzh.de

Description of the Organisation

The Laser Zentrum Hannover e.V. (LZH) with its 150 scientific employees is one of the leading research organizations in Germany in the fields of laser development, material processing, laser medicine, and laser-based nanotechnologies. Its main task is to support and develop applied research in various laser technologies on a non-profit basis. LZH is therefore actively involved into investigations and applications of femto-, pico- and nanosecond laser material processing technologies. LZH and other groups in the world have established that ultrashort (femto-, picosecond) lasers are excellent tools for microstructuring of nearly all kinds of solid materials. This has allowed developing technologies for the fabrication of micro- and submicron-structures with very high precision and reproducibility using compact laser systems. At the LZH, three-dimensional micro-structuring of photosensitive polymeric materials using two-photon polymerization technique has been developed. For high resolution surface nanostructuring of different materials, maskless non-linear femtosecond laser lithography is at present under development. The LZH established diverse manufacturing routes allowing the synthesis of surface-modified nanoparticles, polymer-embedded nanocomposites and nanocomplexes that find a broad range of applications in regenerative biomedicine, advanced polymer-based medical implants and in nanophotonics.

The LZH is involved in many EU and national R&D projects, technical and scientific consulting, and industry-oriented research project such as industry-related training of personal. The advanced laser technologies developed at the LZH are transferred into industry through industrial projects and contracts with companies or in the form of start-up companies. See also: http://www.lzh.de/

Relevant Experience

The Nanotechnology Department of the LZH have participated in an impressive number of national and international nanotechnology, nanoelectronics and nanophotonics related projects in recent years including:

  • “Polymer-based nanoplasmonic components and devices” (PLASMOCOM), FP6 IST, 2006-2009
  • “micro-Fabrication of polymeric Lab-on-a-chip by Ultrafast lasers with Integrated optical Detection“ (microFLUID), FP6 NMP, 2004-2007
  • “Enabling Technologies for 3D Nano Photonics: New Materials and Process Technology for Real 3D Integrated Optical Circuits, Photonic Band Gap Devices and Photonic Crystals” (NEWTON), FP6 IST, 2006-2008
  • “Fabrication nanoparticles with self-regulating magnetic hyperthermia properties for oncology treatment” (NanoMat-EPC) FP7-NMP.2013.4.0-5, 2013-2015
  • “Photopolymer-based Customized Additive Manufacturing Technologies” (PHOCAM), FP7-NMP, 2010-2013
  • German Excellence Cluster (QUEST) “Centre for Quantum Engineering and Space-Time Research”, DFG, 2007-2012
  • German Excellence Cluster (REBIRTH) “From Regenerative Medicine to Reconstructive Therapy”, Exc 62/1 DFG, 2007-2017

Staff Involved

Prof. Dr. Boris CHICHKOV was graduated with honours from the Moscow Institute of Physics and Technology, Russia, in 1978. He received his PhD in Physics and became a research scientist at the P.N. Lebedev Physical Institute, Moscow, in 1981. Since 1993 he has been working in Germany and currently he is a full Professor at the Leibniz University of Hannover and heads the Nanotechnology Department at the LZH. He is co-author of more than 200 publications and has given more than 40 invited talks at different International conferences. Prof. Chichkov was the responsible scientist in several EU projects such as the FP6-IST project "Polymer-based nanoplasmonic components and devices" (PLASMOCOM) and the FP6-NMP project "micro-Fabrication of polymeric Lab-on-a-chip by Ultrafast lasers with Integrated optical Detection" (microFLUID), beside many other. He is a principle investigator in two German clusters of Excellence "Centre for Quantum Engineering and Space-Time Research" (QUEST) and "From Regenerative Medicine to Reconstructive Therapy" (REBIRTH).

 

Dr. Csaba Laszlo SAJTI, is head of the research group “Nanomaterials” at the LZH. With the financial support of the French Government, he received his PhD degree in Materials sciences at the CiNaM-CNRS Laboratory of the University of Marseille, France in 2007 after finishing the M.Sc. degree in Physics at the University of Szeged, Hungary in 2004. After his PhD he was granted with the Endeavour Research Fellowship of the Australian Government to perform scientific work at the Australian National University in Canberra, Australia in 2008-2009. His current interests cover the laser-based fabrication and optoelectronic characterization of ultrapure nanoparticles, their surface functionalization, laser-synthesis of nano-bioconjugates, biofunctionalization of medical implants, developement of complex nanoparticles for local drug-release systems and nanoparticle-polymer composites. Since 2010, he leads the research group “Nanoparticles” in the German cluster of Excellence REBIRTH - From Regenerative Medicine to Reconstructive Therapy.

5 most significant recently published papers

[1] U. Zywietz, C. Reinhardt, A.B. Evlyukhin, B.N. Chichkov, Laser printing of silicon nanoparticles with resonant optical electric and magnetic responses, Nature Communications, 5, No. 3402, 2014.

[2] A.E. Miroshnichenko, A.B. Evlyukhin,    Y.F. Yu, R.M. Bakker, A. Chipouline, A.I. Kuznetsov, B. Luk’yanchuk,  B.N. Chichkov, Y.S. Kivshar, Nonradiating anapole modes in dielectric nanoparticles, Nature Communications 6, No. 8069, 2015.

[3] A. Barchanski, D. Funk, O. Wittich, C. Tegenkamp, B.N. Chichkov, L. Sajti, Picosecond laser fabrication of functional gold-antibody nanoconjugates for biomedical applications, J. Phys. Chem. C. 119 (17), 9524–9533, 2015.

[4] M. Gruene, M. Pflaum, C. Hess, S. Diamantouros, S. Schlie, A. Deiwick, L. Koch, M. Wilhelmi, S. Jockenhoevel, A. Haverich, B. Chichkov, Laser Printing of Three-Dimensional Multicellular Arrays for Studies of Cell–Cell and Cell–Environment Interactions, Tissue Engineering Part C: Methods, 17, 973 – 982, 2011.

[5] M. Farsari, B.N. Chichkov, Materials processing: Two-photon fabrication, Nature Photonics, 3, 450 – 452, 2009.

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