Philip Onuche has introduced a groundbreaking antibacterial composite with adhesive properties, addressing concerns about the environmental impact of traditional synthesis methods. His research focuses on the development of Copper(I) oxide-microsphere decorated cellulose (COMDC), a sustainable material derived from eucalyptus pulp and Schweitzer’s reagent.
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“Copper nanoparticle-based antibacterial composites have gained attention over the years due to the low-cost and abundance of copper,” Onuche explains. “However, the environmental impact of existing chemical synthesis methods has been a concern.” His study presents an eco-friendly and cost-effective approach, employing glucose as a reducing agent in a chemical reduction process.

Using advanced characterisation techniques such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), and ultraviolet-visible spectroscopy (UV-vis), Onuche confirmed the composition and structure of the material.

“The UV-vis spectrum confirmed the synthesis of Cu2O with a maximum absorption of 490 nm, while ATR-FTIR spectrum validated the presence of amorphous cellulose decorated with Copper(I) oxide,” he states. The findings highlight the success of his fabrication process.

The SEM and TEM images further revealed spherical microparticles of approximately 382 nm, composed of primary nanoparticles around 3 nm. “These nanostructures provide the composite with enhanced properties, making it highly effective against bacteria,” Onuche adds.

His study demonstrated that the synthesised COMDC exhibited strong antibacterial properties, effectively inhibiting the growth of Escherichia coli and Staphylococcus aureus at a minimum inhibitory concentration of 200 ppm. “This suggests a promising application in medical and industrial settings where bacterial resistance is a growing concern,” Onuche asserts.

With sustainability at its core, this innovation not only reduces reliance on hazardous chemical synthesis but also repurposes natural resources like eucalyptus pulp. “We aim to contribute to greener and safer antibacterial solutions,” Onuche emphasises.

As a Quality Assurance and Control expert at Dangote Cement, Nigeria, and a researcher with a background in nanomaterials, Onuche brings a wealth of experience to the field. His previous work in sustainable antimicrobial nanocomposites at Chulalongkorn University, Thailand, aligns with this study’s objectives.

Onuche’s work underscores the intersection of green chemistry and material innovation. “By focusing on renewable materials and safer synthesis routes, we can create solutions that are both effective and environmentally responsible,” he remarks.

This research adds to the growing field of eco-friendly nanotechnology, paving the way for future advancements in sustainable antibacterial materials. “There’s still much to explore, especially in terms of scalability and long-term applications,” he notes.

The findings have sparked interest in academic and industrial circles, with potential applications in healthcare, packaging, and industrial coatings. “We are optimistic about its practical implementations in real-world scenarios,” Onuche says.

With ongoing environmental concerns and the need for sustainable solutions, Onuche’s research represents a significant step toward greener innovations. “This is just the beginning; there’s room for further refinement and broader applications,” he concludes.
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