| Texto completo | |
| Autor(es): |
Bonfim, Kely Silveira
;
Morgado, Daniella Lury
;
Fernandes, Renan da Silva
;
Watanuki Filho, Adhemar
;
Aouada, Fauze Ahmad
;
de Moura, Marcia Regina
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | POLIMEROS-CIENCIA E TECNOLOGIA; v. 35, n. 4, p. 10-pg., 2025-01-01. |
| Resumo | |
This study demonstrates the sustainable production and physicochemical characterization of nanofibers from bacterial cellulose (BC) waste generated during the commercial production of wound dressing films, using TEMPO-mediated oxidation. The produced BC nanofibers (TO-BCNF) were evaluated in terms of yield (82.68%) and water content (98.84%), and characterized by Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Fourier-Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), and Thermogravimetric Analysis (TGA). TEM revealed nanofibers with an average diameter of 116.07 f 21.35 nm, while XRD confirmed the preservation of the semi-crystalline structure of BC, with a crystallinity index of 88.15%. TGA indicated thermal stability with degradation onset at 186 degrees C. The process also preserved the nanofibrillar morphology and the three-dimensional network of BC. This sustainable approach supports the circular bioeconomy by converting industrial waste into functional nanomaterials, offering potential for applications in wound dressings, films, hydrogels, and controlled release systems. (AU) | |
| Processo FAPESP: | 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais |
| Beneficiário: | Elson Longo da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 19/06170-1 - Incorporação de nanocelulose bacteriana em matrizes poliméricas hidrossolúveis comestíveis para o estudo da viabilidade no preparo de novos nanocompósitos |
| Beneficiário: | Márcia Regina de Moura Aouada |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |