This invention presents a nanoemulsion-based antimicrobial composition using a chitosan biopolymer encapsulating eugenol and oleic acid. The formulation provides wash-resistant coatings for textiles and can also be used in spray/aerosol formats for surface or airborne disinfection. It ensures long-lasting, broad-spectrum antimicrobial protection without harmful chemicals, making it ideal for various personal, healthcare, and industrial applications.
Figure (1) Antibacterial activity of the composite material by disk diffusion assay against Staphylococcus aureus; (2) Coated Personal Protective Equipment (PPE) material with the synthesized composite material
Conventional disinfectants and antimicrobial coatings often rely on harmful chemicals or metals and lack sustained activity, making them unsuitable for repeated or long-term use on fabrics or skin-contact surfaces.
- Biopolymer Nanoemulsion Composition: The technology is based on a chitosan-based, solvent-free nanoemulsion that encapsulates natural bioactive agents like eugenol and oleic acid, forming a stable and effective antimicrobial system.
- Broad-Spectrum Protection: The composition demonstrates potent antimicrobial activity against a wide range of pathogens, including Gram-positive and Gram-negative bacteria, fungi, and viruses such as SARS-CoV-2.
- Sustained Efficacy: When applied to textiles, the coating retains its antimicrobial activity even after 20-40 wash cycles, making it highly durable for repeated use.
- Versatile Application: The formulation can be used for coating PPEs, masks, bed linen, apparel, as well as on hard surfaces, and in aerosolized form for room sprays, fumigation, and disinfection tunnels.
- Non-Toxic: The composition has been clinically validated as non-irritant to skin and mucosal tissues based on OECD guidelines, ensuring safe contact with human skin and respiratory systems.
- Eco-Safe and Biodegradable: The formulation is free from harmful metals, alcohols, and quaternary ammonium compounds, making it an environmentally friendly and biodegradable alternative to conventional disinfectants.
Functional coated textiles (face masks, PPEs, etc.) and spray formats developed and validated. SEM and FTIR confirmed coating and nanoparticle size. ASTM, AATCC, and RT-PCR assays confirmed antimicrobial activity.
To demonstrate the technology, hypothesis testing was performed in controlled lab environments.
4
It enables safe, long-lasting antimicrobial protection for healthcare workers and the general public. It reduces reliance on chemical disinfectants. It supports infection control in pandemic and post-pandemic settings, including in low-resource environments.
- Healthcare and Medical Devices: Can be used in medical textiles such as face masks, PPE kits, surgical gowns, and wound dressings, offering long-term antimicrobial protection and reducing hospital-acquired infections
- Home and Industrial Sanitization: As a spray or aerosol disinfectant, it ensures surface hygiene in homes, offices, manufacturing units, and other shared spaces, with long-lasting protection against bacteria, viruses, and fungi
- Textile and Apparel Industry: Provides antimicrobial coatings for everyday clothing, uniforms, sportswear, and innerwear, enhancing hygiene and odor resistance without affecting fabric comfort or breathability
- Public Health and Hygiene: Enables disinfection in public places like schools, malls, hospitals, and transportation hubs through surface sprays or room aerosols, supporting large-scale hygiene and infection control
- Transportation and Hospitality: Can be applied on high-touch surfaces in vehicles, airplanes, hotels, and public restrooms, helping maintain cleaner, safer environments for travelers and guests
- Agriculture and Veterinary Care: Useful for disinfecting animal enclosures, tools, and protective wear, minimizing the spread of infections among livestock and ensuring biosecurity in farms and veterinary settings
Geography of IP
Type of IP
202021016678
416281