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The structural and morphological characteristics of the nanocomposite were investigated by XRD, FT\u2010IR, SEM, EDX, and VSM for magnetic properties. The XRD analysis demonstrates the successful synthesis of Fe<jats:sub>2<\/jats:sub>O<jats:sub>3<\/jats:sub>\/CuO\/CuFe<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub> nanocomposite with an average crystallite size of 18.393\u2005nm. The antioxidant and antifungal capabilities of this nanocomposite were assessed for its biological activity. A notable inhibitory zone was observed when tested against <jats:italic>the Alternaria spp<\/jats:italic>. and <jats:italic>Bipolaris sorokiniana<\/jats:italic> fungi. An IC<jats:sub>50<\/jats:sub> value of 109.88\u2005\u03bcg\/ml was found in the DPPH test, indicating that the nanocomposite exhibited remarkable antioxidant characteristics. Subsequently, metronidazole was encapsulated with a success rate of 55.53\u2009% at pH\u20051.2, while at pH\u20057.4 it gained 57.83\u2009%. 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