MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202641100083 A) filed by Saveetha Institute Of Medical And Technical Sciences on August 19, 2026, for Light-Curable Copper-Oxide Nanoparticle-Enhanced Composite Resin For Antibacterial Restoration And Adhesive Applications In Pediatric Dentistry.
Inventors include Suyog Khabiya; Dr. Vignesh R; and Deepak Nallaswamy Veeraiyan.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: The Light-Curable Copper-Oxide Nanoparticle—Enhanced Composite Resin is an advanced photopolymerizable dental material engineered to provide durable restoration, selective antimicrobial protection, and long-term caries control with minimal cytotoxic effects on host tissues. This multifunctional formulation leverages the synergy of Bis-GMA/TEGDMA polymer matrix for mechanical strength and light-curing capability. Copper-oxide (CuO) nanoparticles (99% pure, 20-50 nm) as selective antimicrobial agents. Chitosan-modified EDMAB (CQ/EDMAB-CH) accelerator system for enhanced biocompatibility and accelerated polymerization. Silica filler (14 g per 100 g composite, —70% by volume) for radiopacity and mechanical reinforcement. Optimized monomer blend (BisGMA 45 g + TEGDMA 35 g per 100 g) for balanced handling and polymerization. The resulting composite exhibits antimicrobial efficacy against Streptococcus mutans biofilnns ( 85% inhibition) while demonstrating selective preservation of beneficial commensal bacteria. This selective antibacterial profile distinguishes it from broad-spectrum antimicrobial materials and represents an unprecedented advancement in biofilm-targeted restorative dentistry. The optimized CuO nanoparticle concentration (2-5 wt%) provides broad antimicrobial effects and is cost-effective compared to alternative nanomaterials (silver, zinc oxide). CuO nanoparticles offer dual advantages strong inhibition of cariogenic pathogens combined with limited effect on beneficial oral commensals, making them promising for long-term clinical use without disrupting oral microbiota.
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