Optical properties of Bacteriorhodopsin-Gold Bionano Interfaces
Das, Subhabrata; Asmara, Teguh Citra; Patra, Abhirup; Song, Zhaoning; Bista, Sandip Singh; Somasundaran, Ponisseril; Rusydi, Andrivo; Barbiellini, Bernardo; Venkatesan, Renugopalakrishnan (2019-10-18)
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Sisältö avataan julkiseksi: 19.10.2020
Sisältö avataan julkiseksi: 19.10.2020
Post-print / Final draft
18.10.2019
The Journal of Physical Chemistry C
American Chemical Society
School of Engineering Science
Kaikki oikeudet pidätetään.
© 2019 American Chemical Society
© 2019 American Chemical Society
Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe2019102434631
http://urn.fi/URN:NBN:fi-fe2019102434631
Tiivistelmä
Monolayers of different mutants of bacteriorhodopsin (bR) with purple membranes are deposited on gold (Au) substrates. Optical measurements and density functional theory-based electronic structure calculations are reported for the first time for the bR chromophore, which is the retinal protonated Schiff base. The dielectric function of the chromophore is extracted using spectroscopic ellipsometry. Designed mutants of bR are used to investigate the bonding with the gold substrate and bR–Au bonding changes can be tracked using the optical properties of the retinal fragment.
Lähdeviite
Das S., Asmara T. C., Patra A., Song Z., Bista S. S., Somasundaran P., Rusydi A., Barbiellini B., Venkatesan R. (2019). Optical Properties of Bacteriorhodopsin–Gold Bionano Interfaces. The Journal of Physical Chemistry C. DOI: 10.1021/acs.jpcc.9b06488
Kokoelmat
- Tieteelliset julkaisut [591]