Solid-State Luminescence with a Large Stokes Shift in Starch Functionalized with Low-Content ESIPT Dye
Abstract
:1. Introduction
2. Experimental Section
2.1. Materials and Methods
2.2. Synthesis
2.3. Preparation of Fluorescent Starch
2.4. Fluorescent Films Based on Starch
3. Results and Discussion
3.1. Characterization
3.2. Photophysics
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Fluorophore | Starch (g) | Fluorophore Amount (w%) 1 | Nomenclature |
---|---|---|---|
4a | 2.0 | 0.1 | Starch@4a01 |
0.5 | Starch@4a05 | ||
1.0 | Starch@4a1 | ||
5.0 | Starch@4a5 | ||
4b | 0.1 | Starch@4b01 | |
0.5 | Starch@4b05 | ||
1.0 | Starch@4b1 | ||
5.0 | Starch@4b5 |
Component | Amount (w%) 1 | ||
Film Starch | Film Starch@4a | Film Starch@4b | |
Starch | 70 | - | - |
Glycerol | 30 | 30 | 30 |
Starch@4a5 | - | 70 | - |
Starch@4b5 | - | - | 70 |
Sample | λabs | λem | ΔλST (nm/cm−1) | QY (%) |
---|---|---|---|---|
Starch@4a01 | 333 | 514 | 181/10575 | 1.1 |
Starch@4a05 | 344 | 512 | 168/9539 | 3.4 |
Starch@4a1 | 350 | 511 | 161/9002 | 4.5 |
Starch@4a5 | 366 | 512 | 146/7791 | 7.6 |
Starch@4b01 | 334 | 501 | 167/9980 | 1.8 |
Starch@4b05 | 345 | 503 | 158/9105 | 3.3 |
Starch@4b1 | 366 | 503 | 137/7442 | 4.2 |
Starch@4b5 | 362 | 540 | 178/9106 | 1.1 |
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Colonetti, E.; da Luz, L.C.; Rodembusch, F.S. Solid-State Luminescence with a Large Stokes Shift in Starch Functionalized with Low-Content ESIPT Dye. Colorants 2024, 3, 99-110. https://doi.org/10.3390/colorants3020007
Colonetti E, da Luz LC, Rodembusch FS. Solid-State Luminescence with a Large Stokes Shift in Starch Functionalized with Low-Content ESIPT Dye. Colorants. 2024; 3(2):99-110. https://doi.org/10.3390/colorants3020007
Chicago/Turabian StyleColonetti, Emerson, Lilian C. da Luz, and Fabiano S. Rodembusch. 2024. "Solid-State Luminescence with a Large Stokes Shift in Starch Functionalized with Low-Content ESIPT Dye" Colorants 3, no. 2: 99-110. https://doi.org/10.3390/colorants3020007