Chitosan as a Protective Matrix for the Squaraine Dye
| Autor: | Piotr Maćczak, Aleksander Smolarkiewicz-Wyczachowski, Patryk Rybczynski, Marta Ziegler-Borowska, Halina Kaczmarek |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
dye release
photochemical stability 02 engineering and technology macromolecular substances engineering.material 010402 general chemistry medicine.disease_cause 01 natural sciences lcsh:Technology Article thermal stability Chitosan Matrix (chemical analysis) chemistry.chemical_compound morphology medicine General Materials Science Thermal stability lcsh:Microscopy lcsh:QC120-168.85 Squaraine dye squaraine dye lcsh:QH201-278.5 lcsh:T technology industry and agriculture 021001 nanoscience & nanotechnology equipment and supplies Fluorescence 0104 chemical sciences carbohydrates (lipids) chemistry Chemical engineering lcsh:TA1-2040 engineering lcsh:Descriptive and experimental mechanics Biopolymer lcsh:Electrical engineering. Electronics. Nuclear engineering fluorescence chitosan 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 Ultraviolet Macromolecule |
| Zdroj: | Materials Volume 14 Issue 5 Materials, Vol 14, Iss 1171, p 1171 (2021) |
| ISSN: | 1996-1944 |
| Popis: | Chitosan was used as a protective matrix for the photosensitive dye-squaraine (2,4-bis[4-(dimethylamino)phenyl]cyclobutane-1,3-diol). The physicochemical properties of the obtained systems, both in solution and in a solid-state, were investigated. However, it was found that diluted chitosan solutions with a few percent additions of dye show an intense fluorescence, which is suppressed in the solid-state. This is related to the morphology of the heterogeneous modified chitosan films. The important advantage of using a biopolymer matrix is the prevention of dye degradation under the influence of high energy ultraviolet (UV) radiation while the dye presence improves the chitosan heat resistance. It is caused by mutual interactions between macromolecules and dye. Owing to the protective action of chitosan, the dye release in liquid medium is limited. Chitosan solutions with a few percent additions of squaraine can be used in biomedical imaging thanks to the ability to emit light, while chitosan films can be protective coatings resistant to high temperatures and UV radiation. |
| Databáze: | OpenAIRE |
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