Plastic artificial retina is a hit with nerve cells

时间:2019-03-07 05:13:01166网络整理admin

LIGHT-SENSITIVE plastic might be key to repairing damaged retinas. Creating neuro-prosthetic devices such as retinal implants is tricky because biological tissue doesn’t mix well with electronics – but it might mix with organic semiconductors. To find out, Fabio Benfenati at the Italian Institute of Technology in Milan, and colleagues, seeded nerve cells onto the surface of a light-sensitive semiconducting polymer, and made it into the electrode of a light-driven electrolytic cell. The cells grew into networks over the material without affecting its optical properties. When short pulses of light were aimed at specific sections of the polymer, only local neurons fired,