Photoactive graphene quantum dots/bacterial cellulose hydrogels: Structural, mechanical, and pro‐oxidant study

• DOI: 10.1002/app.51996
• Publication Date: 2021-12-03T04:16:47Z
• Authors: Zoran M. Marković; Danica Z. Zmejkoski; Milica D. Budimir; Nikol Bugárová; Angela Kleinová; Sanja B. Kuzman; Zdeno Špitalský; Vladimir B. Pavlović; Dušan D. Milivojević; Biljana M. Todoro...
• Keywords: Bacterial Cellulose

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 are investigated through modifications of structural, mechanical, and pro‐oxidant resulting from graphene quantum dots (GQDs) encapsulation. Detailed analysis is conducted by atomic force microscopy, transmission electron microscopy scanning X‐ray photoelectron spectroscopy, Fourier transform infrared diffraction method. Dynamic mechanical performed study the changes storage modulus, loss modulus tan δ. Pro‐oxidative new designed composites tested paramagnetic resonance (EPR). Structural analyses show successful encapsulation GQDs into whereas EPR measurements indicate high potential these for singlet oxygen production.