Highly efficient emitter based on gelatin films with a modified structure

Lantukh, Y.D., Letuta, S.N., Pashkevich, S.N., Alidzhanov, E.K., Tikhonov, G.A.

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For Russian citation (Opticheskii Zhurnal):

Лантух Ю.Д., Летута С.Н., Пашкевич С.Н., Алиджанов Э.К., Тихонов Г.А. Высокоэффективный излучатель на основе пленок желатина с модифицированной структурой // Оптический журнал. 2019. Т. 86. № 9. С. 63–67. http://doi.org/10.17586/1023-5086-2019-86-09-63-67

Lantukh Yu.D., Letuta S.N., Pashkevich S.N., Alidzhanov E.K., Tikhonov G.A. Highly efficient emitter based on gelatin films with a modified structure [in Russian] // Opticheskii Zhurnal. 2019. V. 86. № 9. P. 63–67. http://doi.org/10.17586/1023-5086-2019-86-09-63-67

For citation (Journal of Optical Technology):

Yu. D. Lantukh, S. N. Letuta, S. N. Pashkevich, E. K. Alidjanov, and G. A. Tikhonov, "Highly efficient emitter based on gelatin films with a modified structure," Journal of Optical Technology. 86(9), 582-586 (2019). https://doi.org/10.1364/JOT.86.000582

Abstract:

A method for the physicochemical modification of the structure of gelatinous films is proposed. For this purpose, molecular-recognition-based self-assembly was used: the formation of (bio)polymolecular complexes between gelatin and chitosan owing to the interactions of the main amino acid residues in gelatin and acidic amino groups in the structure of chitosan (cooperative polyelectrolyte interaction). The use of a gelatin–chitosan matrix made it possible to significantly increase the luminescence yield of the dyes introduced into the biopolymer. This was due to the more efficient filling of the corresponding binding gelatin sites with dye molecules and, consequently, minimization of the concentration quenching of fluorescence. In the film samples of gelatin–chitosan matrix–dye, effective superluminescence of sulforhodamine B was achieved.

Keywords:

gelatin, chitosan, biopolymer films, polyelectrolyte interaction, dye-polymer complex, acridine orange, sulforhodamine B, fluorescence, superluminescence

Acknowledgements:

The research was supported by the Ministry of Education and Science of the Russian Federation (project No. 3.6358.2017/BCh).

OCIS codes: 300.6290, 250.2080

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