ZnSnO₃ stands out as a captivating ternary oxide, garnering considerable interest in the realm of materials science owing to its distinct features, including remarkable sensitivity, expansive surface area, and excellent compatibility.

Chitin and chitosan-based nanofibers (ChNFs) from renewable sources are promising biomaterials. This review compares ChNF extraction/synthesis methods, detailing challenges and opportunities. Biomedical and environmental applications are emphasized.