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Smart nano-biomaterials from lignin for packaging and cosmetics
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Scientists are turning to lignin—a plant material left over from wood and plant processing—as a safer alternative to plastic packaging, which can shed tiny microplastic particles linked to health concerns. This review summarizes research showing lignin's natural antioxidant properties also make it useful in sunscreens and anti-aging skincare products, since it can help protect skin from UV damage and neutralize skin-damaging molecules. While promising, this is an overview of existing studies rather than new experimental proof, so more testing is needed before these lignin-based products become widely available.
The increasing reliance on fossil fuel-based polymers has not only raised serious environmental concerns but also highlighted the urgent need to explore sustainable alternatives such as green biopolymers. Among these, lignin stands out as an abundant and cost-effective option. It offers several advantages, including widespread availability, environmental sustainability, and economic viability. Additionally, growing awareness of the health risks associated with microplastics especially those leaching from plastic packaging has accelerated interest in renewable lignin-based nanomaterials. These materials show great promise as smart biomaterials for packaging, while their high antioxidant potential makes lignin nano-biosensors valuable in applications like UV protection, nanocarriers, and free radical scavengers in anti-aging formulations. This chapter explores the use of lignin nano-biomaterials in smart packaging and cosmetic applications. Owing to its origin from lignocellulosic biomass, lignin enhances functional properties and imparts smart features, making it a key material for driving innovation and promoting sustainability in both industries.
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Green and Scalable Preparation of Colloidal Suspension of Lignin Nanoparticles and Its Application in Eco-friendly Sunscreen Formulations
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Researchers developed a scalable, solvent-free method to produce lignin nanoparticles and demonstrated their use as a natural UV-absorbing ingredient in eco-friendly sunscreen formulations, offering a biodegradable alternative to synthetic UV filters.
Lignin nanoparticles in food packaging: a sustainable approach to material design and performance enhancement
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Researchers reviewed how lignin nanoparticles can enhance biodegradable food packaging polymers like chitosan and starch, finding that lignin's natural antioxidant and antimicrobial properties significantly improve barrier performance and shelf life while reducing reliance on petroleum-based plastics.
Recent Advances in the Application of Lignin for Biobased Packaging Materials
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Recent advances in lignin-based packaging materials demonstrate that incorporating technical lignin and lignin nanoparticles into biopolymer matrices (PLA, PBAT, starch) improves mechanical strength, thermal stability, UV shielding, and antioxidant properties. Chemical functionalization strategies like esterification and epoxidation enhance compatibility and unlock advanced properties such as self-healing, positioning lignin as a high-value additive for sustainable bio-based packaging.
Nanochitin and Nanolignin: Activity and Effectiveness
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This review examines the activity and effectiveness of nanochitin and nanolignin as biodegradable, natural polymer-based alternatives to synthetic plastics in consumer products, motivated by growing awareness of microplastic contamination of marine and terrestrial food chains. Researchers found that chitin and lignin-derived nanomaterials offer promising properties for producing zero-waste, skin-friendly, and environmentally compatible goods that can substitute for plastic-containing products entering the environment as microplastics.
Easily Processable Thermoplastic Microcomposites with Enhanced UV Shielding Performance Based on Anionic Polyamide 6 and Sulfonated Lignin
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Researchers mixed a plant-based material called sulfonated lignin into a plastic called polyamide 6 to create a blended material. In lab testing, adding up to 5% lignin greatly improved the material's ability to block UV light, though it also somewhat reduced its strength.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.