Eco-Friendly Synthesis of Copper Oxide Nanoparticles via Plant-Based Precursors: its Applications in Bio-medicine and Toxicity

Author: Das P., Das C.R. and Paul M.

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Abstract

Nanomaterials, characterized by their nanoscale dimensions (1–100 nm), possess unique properties such as high surface area, catalytic reactivity, thermal conductivity, magnetic susceptibility, and chemical stability. Among these, Zinc Oxide (ZnO) nano particles (NPs) are prominent due to their applications in gas sensing, bio sensing, cosmetics, and biomedicine, including anti-diabetic and antimicrobial treatments. Their luminescent properties and radiation resistance make them valuable in space applications. Various chemical and green synthesis methods have been employed for metallic oxide nano particles, particularly ZnO and Copper Oxide (CuO) NPs. ZnO NPs exhibit desirable semiconductor properties and have been synthesized using techniques like sol-gel, co-precipitation, and green synthesis, often employing plant-based precursors. Similarly, CuO NPs have been synthesized using co-precipitation, thermal decomposition, and microwave-assisted green methods. The latter involves eco-friendly precursors such as banana peel ash and plant extracts (e.g., teak, spinach, lettuce, and banyan leaves) combined with microwave heating. Characterization using techniques like XRD and FESEM confirms the nano-range dimensions and uniformity of synthesized particles, with spherical shapes offering enhanced catalytic activity due to increased surface area. This study demonstrates the efficacy and sustainability of green synthesis techniques for CuO NPs including their medicinal applications, evalution of toxicity and highlighting their cost-effectiveness, simplicity, and rapid production. The findings underline the potential of nanotechnology in advancing green and sustainable development across industries

Keywords

Copper Oxide NPs, Banana Peel, Nanoparticles, toxicity, medicinal applications, sustainable

Conclusion

The synthesis of CuO NPs do not requires any expensive ingredients. Synthesizing of CuO NPs using green precursor is cost effective as well as eco-friendly. This microwave assisted method is very simple. Most importantly NPs could be synthesized in short interval of time. SEM image of CuO NPs shows that the particles are spherical. Morphology of the particles analyzed by FESEM also confirmed the uniformity of synthesized particles

References

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How to cite this article

Das P., Das C.R. and Paul M. (2023). Eco-Friendly Synthesis of Copper Oxide Nanoparticles via Plant-Based Precursors: its Applications in Bio-medicine and Toxicity. Biological Forum – An International Journal, 15(5a): 803-808