MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202641053797 A) filed by Hindusthan College Of Engineering And Technology on April 28, 2026, for A Dual Function Bio Composite Film Derived From Musa Acuminata Floral Waste For Active Antioxidant Packaging And Real-Time Colorimetric Freshness Monitoring.

Inventors include Dr Kavitha S; Subashini S; Padma Priya R S; Hariharan S; Sriram M; Jothikrishnan N; Yuvaraj B; Naveen Kumar D; Mohammed Haneen D; and Shanun M.

The application for the patent was published on June 26, 2026, under issue no. 26/2026.

Abstract: Water contamination by heavy metals has become a serious environmental and public health issue due to rapid industrialization and improper waste disposal. Among these contaminants, cadmium (Cd) is considered one of the most toxic heavy metals because of its high persistence, bioaccumulation potential, and harmful effects on living organisms. Conventional methods used for heavy metal removal from wastewater are often expensive, inefficient at low concentrations, and may generate secondary pollutants. Therefore, the development of ecofriendly, cost-effective, and sustainable treatment methods is essential. The present study focuses on the green synthesis and application of plant-based . nanoparticles for the removal of cadmium from wastewater using Atomic Absorption Spectroscopy (AAS) analysis. In this work, plant extracts such as Aloe vera, Moringa, Flaxseed, and Eucalyptus were used for nanoparticle synthesis due to their natural reducing and stabilizing properties. These plantmediated nanoparticles were applied as adsorbents to remove cadmium ions from contaminated water samples. The efficiency of cadmium removal was evaluated by measuring absorbance and concentration values using an Atomic Absorption Spectrophotometer. Keywords Cadmium removal. Green synthesis. Plant- based nanoparticles. Wastewater treatment, Heavy metal adsorption. Atomic Absorption Spectroscopy (AAS), Environmental remediation. Biosorptionere

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