Zobrazeno 1 - 10
of 89
pro vyhledávání: '"W. Nisch"'
Autor:
W. Nisch, C. Burkhardt
Publikováno v:
Practical Metallography. 42:161-171
Kurzfassung Für die Untersuchung der Ultrastruktur von biologischen Zellen und Geweben ist die Elektronenmikroskopie ein wichtiges Hilfsmittel. Damit mit dieser Methode auch die Grenzfläche von biologischen Systemen und Werkstoffoberflächen geziel
Autor:
C. Burkhardt, W. Nisch
Publikováno v:
Practical Metallography. 41:190-198
A new method for in-situ lift-out of samples for transmission electron microscopy (TEM) using a compact and precise micro manipulator inside a scanning electron microscope is presented. A fine needle is positioned with high precision at the TEM lamel
Publikováno v:
Biomedical Microdevices. 5:93-99
Arrays of microelectrodes with high charge transfer capacity have been fabricated and characterized. Nano-porous titanium nitride thin films were deposited onto a 3-dimensional micro-fabricated structure etched into a biocompatible polyimide insulati
Publikováno v:
Biomedical Microdevices. 3:133-142
Micro-photodiode arrays have been developed which are intended to eventually replace the function of degenerated photoreceptor cells in the retina. Electric current generated by tiny micro-photodiodes is delivered to the neuronal network in the retin
Publikováno v:
Journal of Materials Science: Materials in Medicine. 5:463-466
The physico-chemical properties of a biomaterial and its surface-texture greatly influence the type of tissue reaction. Grooved substrata provoke cellular orientation which is known as contact guidance. Using gingival fibroblasts it has been demonstr
Publikováno v:
EMC 2008 14th European Microscopy Congress 1–5 September 2008, Aachen, Germany ISBN: 9783540851547
The potential of secondary ion mass spectrometry combined with scanning electron microscopy (Figure 1a) has been investigated for the characterisation of barrier layers which are used to avoid ion diffusion in polymers. These barrier layers are playi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5dff8bab72e080e3ad6381ae31e5440
https://doi.org/10.1007/978-3-540-85156-1_335
https://doi.org/10.1007/978-3-540-85156-1_335
Autor:
K. Kobuch, V. R. Gabel, E. Zrenner, M. Graf, Bernd Hoefflinger, W. Nisch, M. Stelzle, Alfred Stett, H. Sachs, H. G. Graf, B. Brunner, H. Haemmerle, Stefan Weiss, K.-D. Miliczek
Publikováno v:
Retinal Degenerative Diseases and Experimental Therapy ISBN: 9780306461934
The feasibility of a retinal prosthesis for the blind has been discussed since the 1950s. Early attempts to realize a subretinal implantable prosthesis suffered from technical and microsurgical limitations at that time. Nowadays these problems can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b86a588fb037a4bed07f2ec6491f2957
https://doi.org/10.1007/978-0-585-33172-0_47
https://doi.org/10.1007/978-0-585-33172-0_47
Autor:
K. Shinoda, Florian Gekeler, B. Wilhelm, E. Zrenner, H. Gruber, V.P. Gabel, K. L. Kohler, H. Sailer, W. Nisch, H. Hammerle, R.G. Graf, H. Sachs, Alfred Stett
Publikováno v:
2004 IEEE International Joint Conference on Neural Networks (IEEE Cat. No.04CH37541).
Utilising differential amplifiers for the adaptation of subretinal implants allows sufficient spatial resolution at varying ambient light surroundings in a grid of 70 /spl mu/m, as defined by physiological in vitro experiments. It has been shown that
Publikováno v:
Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.
In order to gain further insight into the internal interface between in-vitro grown cell-layers and silicon microstructures, we developed a preparation technique for cross-sectional investigation of the cell-semiconductor interface by TEM. So far a s
Autor:
E, Zrenner, F, Gekeler, V P, Gabel, H G, Graf, M, Graf, E, Guenther, H, Haemmerle, B, Hoefflinger, K, Kobuch, K, Kohler, W, Nisch, H, Sachs, B, Schlosshauer, M, Schubert, H, Schwahn, M, Stelzle, A, Stett, B, Troeger, S, Weiss
Publikováno v:
Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft. 98(4)
A survey is given on the status of developments, concerning a subretinal electronic microphotodiode array that aims at replacing degenerated photoreceptors. Various prototypes have been developed, tested, and implanted in various experimental animals