Is it possible to make components out of organic polymers (plastics) whose structure is such that severed nerves can grow right into them and connect with electrodes in a prosthetic hand, for example? This is one of the research fields for Tobias Nyberg at the Section for Biomolecular and Organic Electronics at Linköping University, Sweden.
Part of Tobias Nyberg’s dissertation is based on collaboration with cell biologist Helena Jerregård. Her task is to find ways to get tangled nerves to sort themselves out into nerve threads and tactile threads respectively. Tobias Nyberg’s job is to produce the structures in which the sorted nerves can connect with the electrodes from a future prosthesis. The materials he has used are plastics etched with patterns of tiny channels 20 millionths of a meter in size, covered both by an electrically conductive polymer and a protein that the nerves can grow on.
Another section of the dissertation treats nano- and micrometer-sized structures for solar cells and light diodes. In these contexts it is important that as much light as possible be absorbed by the material, despite the fact that, for other reasons, the material should also be a thin as possible. Tobias Nyberg has therefore found a way to create light-refracting patterns less than a thousandth of a millimeter in size, patterns that prevent light from going straight through, bending it instead so that more light is absorbed.
Ingela Björck | alphagalileo
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