Research Keyword: controlled release

A super absorbent polymer containing copper to control Plenodomus tracheiphilus the causative agent of mal secco disease of lemon

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Researchers developed a new gel-like material containing copper that can fight a serious fungal disease affecting lemon trees. Unlike traditional copper sprays that wash away and pollute the environment, this new material slowly releases copper directly into the plant’s water-conducting vessels where the disease-causing fungus lives. The gel absorbed water effectively and released copper ions gradually over time, showing much better results than regular copper solutions when tested on infected lemon branches.

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Natamycin-Loaded Ethyl Cellulose/PVP Films Developed by Microfluidic Spinning for Active Packaging

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Researchers developed special thin films that can help preserve fruits and vegetables by preventing mold growth. These films are made by combining two biodegradable polymers with an antimicrobial substance called natamycin using a new spinning technique. The films successfully inhibited gray mold, which causes major spoilage in strawberries, tomatoes, and other crops. This technology offers a promising way to extend shelf life and reduce food waste.

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pH-responsive imine-chitosan-based intelligent controlled-release packaging films with transformable antimicrobial modes from defense to attack

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Researchers developed a smart food packaging film that fights bacteria and fungi in two different ways depending on acidity levels. When stored with neutral pH foods, the film’s surface prevents microbes from sticking to it. When the food becomes more acidic (like in tomato juice), the film releases antimicrobial compounds that actively kill the microorganisms. Tests showed it effectively preserved cherry tomatoes and tomato juice while blocking harmful UV light.

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Sodium Alginate Modifications: A Critical Review of Current Strategies and Emerging Applications

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Sodium alginate is a natural substance from seaweed that is safe to eat and widely used in foods, medicines, and environmental cleanup. Scientists have developed various ways to modify sodium alginate to make it stronger, more stable, and better at specific jobs like delivering medicines or creating edible packaging. This review explains both the gentle, food-safe ways to modify alginate for food products and stronger chemical methods used for medical and environmental applications. The modifications allow alginate to work better in areas like wound healing, removing pollutants from water, and protecting food freshness.

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Mesoporous silica and vegetal extracts combined as sustainable stone heritage protection against biodeterioration

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Researchers developed an eco-friendly method to protect historic stone buildings and sculptures from fungal damage. They trapped natural plant oils (from oregano and thyme) inside tiny nano-containers made of silica, which slowly releases the antimicrobial compounds over time. When tested on marble samples, this coating prevented fungal growth for two months without harmful chemicals, making it safe for both the environment and workers preserving cultural heritage.

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Mesoporous silica and vegetal extracts combined as sustainable stone heritage protection against biodeterioration

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Researchers developed an innovative protective coating for historic stone structures using natural plant extracts encapsulated in special porous silica particles. The oregano oil-based coating successfully prevented fungal growth on marble surfaces for extended periods while being safe for the environment and workers. This sustainable solution offers museums and heritage conservation professionals a non-toxic alternative to harsh chemical biocides, helping preserve precious artifacts for future generations.

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