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- Title
Photoactive graphene quantum dots/bacterial cellulose hydrogels: Structural, mechanical, and pro‐oxidant study.
- Authors
Marković, Zoran M.; Zmejkoski, Danica Z.; Budimir, Milica D.; Bugárová, Nikol; Kleinová, Angela; Kuzman, Sanja B.; Špitalský, Zdeno; Pavlović, Vladimir B.; Milivojević, Dušan D.; Todorović Marković, Biljana M.
- Abstract
Due to their unique structural properties bacterial cellulose (BC) hydrogels find possible usage in many fields such as cosmetology, food industry, or medicine. In this study, photoactive BC hydrogels are investigated through modifications of their structural, mechanical, and pro‐oxidant properties resulting from graphene quantum dots (GQDs) encapsulation. Detailed structural analysis is conducted by atomic force microscopy, transmission electron microscopy and scanning electron microscopy, X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and X‐ray diffraction method. Dynamic mechanical analysis is performed to study the changes in storage modulus, loss modulus and tan δ. Pro‐oxidative properties of new designed composites are tested by electron paramagnetic resonance (EPR). Structural and mechanical analyses show successful encapsulation of GQDs into BC whereas EPR measurements indicate high potential of these composites for singlet oxygen production.
- Subjects
QUANTUM dots; REACTIVE oxygen species; SCANNING transmission electron microscopy; DYNAMIC mechanical analysis; FOURIER transform infrared spectroscopy; ELECTRON paramagnetic resonance
- Publication
Journal of Applied Polymer Science, 2022, Vol 139, Issue 16, p1
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.51996