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Stimulated Emission from Rhodamine 6G Aggregates Self-Assembled on Amyloid Protein Fibrils

Piotr Hanczyc (Institutionen för kemi och kemiteknik, Fysikalisk kemi) ; L. Sznitko ; C. Zhong ; A.J. Heeger
ACS Photonics (2330-4022). Vol. 2 (2015), 12, p. 1755-1762.
[Artikel, refereegranskad vetenskaplig]

Amyloid fibrils are excellent bioderived nanotemplates for controlling molecular and optical properties of small molecules such as organic dyes. Here we demonstrate that two representative fibril-forming proteins, lysozyme and insulin, from the amyloids family can determine the optical signature of rhodamine 6G. Their structural variety leads to a unique molecular arrangement of dye aggregates on the biotemplate surface. This significantly influences the light amplification threshold as well as the stimulated emission profiles, which show remarkable broadband wavelength tunability. We show in addition that amyloid fibrils can be potentially used in constructing broadband emission biolasers.

Nyckelord: amyloid fibrils , biolaser , biomaterial , laser dye , lysozyme and insulin proteins , molecular crowding , nanotemplates , random lasing , rhodamine 6G , stimulated emission



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Denna post skapades 2016-01-04. Senast ändrad 2016-09-28.
CPL Pubid: 229477

 

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