Journal
CELLULOSE
Volume 29, Issue 3, Pages 1557-1565Publisher
SPRINGER
DOI: 10.1007/s10570-021-04360-1
Keywords
Leishmaniasis; Topical delivery; Diethylditiocarbamate; Degradation
Funding
- CNPq
- UNIARA
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil (CAPES) [001]
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Bacterial nanocellulose (BNC) is a natural biopolymer with biocompatibility, lack of immunogenicity, mechanical strength and crystallinity, making it suitable for drug delivery and wound dressing. In this study, the interaction between diethylditiocarbamate (DETC) and BNC was investigated, and it was found that DETC can be incorporated into BNC but has a short duration, requiring further improvement in stability for its use in bio-curatives.
Bacterial nanocellulose (BNC) is a natural biopolymer produced by different strains of acetic acid bacteria. Biocompatibility, lack of immunogenicity, mechanical strength and crystallinity make BNC a highly applicable product for drug delivery and wound dressing. Previously, we demonstrated that diethylditiocarbamate (DETC), a Superoxide Dismutase 1 inhibitor, incorporated into BNC bio-curatives was effective for treating Cutaneous leishmaniasis (CL) lesions, a parasitic disease caused by Leishmania. We herein investigated the interactions between DETC and BNC. For this purpose, DETC was incorporated into BNC and thermal analysis, x-ray diffraction and Scanning electron microscopy were performed. Furthermore, in vitro DETC release and stability tests as well as degradation studies were also performed. Our results show that DETC is well incorporated into BNC, however it is short lived as suggested by degradation experiments. Future use of BNC DETC-based bio-curatives for the treatment of CL shall require further development in order to increase stability of DETC in the bio-curative.
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