Photosensitive Nanodiscs Composed of Human Photoreceptors for Refractive Index Modulation at Selective Wavelengths.
Nano Lett
; 22(16): 6825-6832, 2022 08 24.
Article
in En
| MEDLINE
| ID: mdl-35801941
ABSTRACT
A photoreceptor on the retina acts as an optical waveguide to transfer an individual photonic signal to the cell inside, which is determined by the refractive index of internal materials. Under the photoactivation of photoreceptors making conformational and chemical variation in a visual cell, the optical signal modulation is demonstrated using an artificial photoreceptor-based waveguide with a controlling beam refraction. Two types of nanodiscs are made of human photoreceptor proteins, short-wavelength-sensitive opsin and rhodopsin, with spectral sensitivity. The refractive index and nonlinear features of those two photosensitive nanodiscs are investigated as fundamental properties. The photonanodiscs are photoactivated in such a way that allow refractive index tuning over 0.18 according to the biological function of the respective proteins with color-dependent response.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Refractometry
/
Rhodopsin
Limits:
Humans
Language:
En
Journal:
Nano Lett
Year:
2022
Document type:
Article