Skip to main content
. Author manuscript; available in PMC: 2016 Oct 28.
Published in final edited form as: Nanoscale. 2015 Oct 28;7(40):16571–16577. doi: 10.1039/c5nr03411f

Figure 4. Channelrhodopsin-expressing neurons grown on polymer-UCNP films exhibit robust excitatory activation upon NIR-light illumination, comparable to blue LED illumination.

Figure 4

(a) Hippocampal neurons expressing ChR2-tdTomato (red). Scale bar: 50 μm. (b) Representative traces of inward current flow in voltage-clamped neuron evoked by 470-nm light (5 mW) and 980-nm light (1 W). (c) Magnified action potential induced by 470-nm light (top) and 980-nm light (bottom). (d) Representative traces showing repetitive action potentials in a current-clamped hippocampal neuron evoked by 1 Hz, 5 Hz and 10 Hz train of light pulses from 470-nm light (top; 250 mW, 3 ms pulse width) and 980-nm light (bottom; 1 W, 3 ms pulse width).