Research Project
Grant-in-Aid for Young Scientists (B)
We developed a 3D reconstruction neuronal tissue technique using collagen fiber orientation and PDMS microchambers. We used this method to produce 3D neuronal networks by controlling the position of somata and the direction of neurite elongation in the 3D space. We confirmed that the interlayer propagation was chemical synaptic transmission by pharmacological experiments and that the velocity of propagation was equivalent to biological tissue. Furthermore, we developed carbon nanotube (CNT)-MEA chips that can measure both electrophysiological responses such as field postsynaptic potentials and action potentials as well as the release of the neurotransmitter dopamine. These CNT-MEA chips were fabricated by electroplating the indium-tin oxide microelectrode surfaces. Chronoamperometric measurements using these CNT-MEA chips detected dopamine at nanomolar concentrations and successfully measured synaptic dopamine release from spontaneous firings in mouse striatal brain slices.
All 2014 2013 2012 Other
All Journal Article (15 results) (of which Peer Reviewed: 15 results, Open Access: 1 results) Presentation (86 results) (of which Invited: 2 results) Book (2 results)
Biochemical and Biophysical Research Communications
Volume: 443 Issue: 4 Pages: 1176-1181
10.1016/j.bbrc.2013.12.142
Neurosci Lett.
Volume: 570 Pages: 126-131
10.1016/j.neulet.2013.09.049
RSC Advances
Volume: 3(45) Issue: 45 Pages: 23620-23630
10.1039/c3ra44757j
IEEJ Transactions on Electronics, Information and Systems
Volume: 133 Issue: 11 Pages: 2068-2074
10.1541/ieejeiss.133.2068
130003382765
Journal of life support engineering
Volume: 25 (2) Pages: 82-89
130004840052
Biosensors and Bioelectronics
Volume: 49 Pages: 270-275
10.1016/j.bios.2013.05.023
Lab on a chip
Volume: 13 Issue: 11 Pages: 2040-2046
10.1039/c3lc00036b
Biochemical and Bioph ysical Research Communications
Volume: 433 Issue: 4 Pages: 362-367
10.1016/j.bbrc.2012.11.139
Analytical Sciences
Volume: 29 Issue: 2 Pages: 263-266
10.2116/analsci.29.263
10031156865
IEEJ Transactioons on Electronics, Information and Systems
Volume: 133 (11) Pages: 2068-2074
Lab Chip.
Volume: 13(11) Issue: 11 Pages: 1981-1981
10.1039/c3lc90043f
Anal Sci.
Volume: 29(2) Pages: 263-266
Volume: in press
Volume: 25