We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Recent developments in sunscreens based on chromophore compounds and nanoparticles
ClearCytotoxicity of Nanoparticles Used in Cosmetic Industries: An In-depth Insight
This review examined the cytotoxicity of nanoparticles used in cosmetic sunscreens, including titanium dioxide and zinc oxide, finding that while these particles provide effective UV protection, their nanoscale form raises concerns about skin penetration and potential cellular toxicity.
Green and Scalable Preparation of Colloidal Suspension of Lignin Nanoparticles and Its Application in Eco-friendly Sunscreen Formulations
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.
Nano-Structured Lignin as Green Antioxidant and UV Shielding Ingredient for Sunscreen Applications
This review covered the use of lignin nanoparticles as green antioxidants and UV-shielding agents in sunscreen and antiaging cosmetics, highlighting the enhanced properties of nanoscale lignin derived from pulp and paper industry waste.
Investigating the Effects of UV Filters in Sunscreen on Human and Environmental Health
This review examines the potential health and environmental risks of UV filters used in sunscreens, covering both organic chemical filters and inorganic metal oxide alternatives marketed as reef-safe. Evidence suggests that metal oxide UV filters can form harmful intermediates in water and may also absorb through human skin, raising questions about whether these alternatives are truly safer.
Effects of Humic Acid and Natural Sunlight Irradiation on the Behaviour of Zinc Oxide Nanoparticles in the Aqueous Environment
Humic acid and sunlight exposure both increase the rate at which zinc oxide nanoparticles dissolve and release toxic zinc ions in water, with smaller nanoparticles dissolving faster. As ZnO nanoparticles are widely used in consumer products and cosmetics, their environmental release poses risks to aquatic organisms.
ВПЛИВ СВІТЛОСТАБІЛІЗАТОРІВ ТА НАНОРОЗМІРНИХ ЧАСТИНОК ДІОКСИДУ КРЕМНІЮ НА ШВИДКІСТЬ ДЕСТРУКЦІЇ ПОЛІМЕРНИХ ПОКРИТТІВ ПІД ДІЄЮ УФ-ВИПРОМІНЮВАННЯ
This study examined how nanoscale silica particles and UV stabilizers affect the degradation rate of polymer coatings under ultraviolet radiation, finding that 30% silica content accelerates oxidation of the base polymer but slows mass and thickness loss. The research is relevant to understanding how plastic coatings degrade under sunlight, contributing to the generation of micro- and nanoplastic particles in the environment.
Modulation efficiency of clove oil nano-emulsion against genotoxic, oxidative stress, and histological injuries induced via titanium dioxide nanoparticles in mice
Researchers found that titanium dioxide nanoparticles (used widely in sunscreens and food products) caused DNA damage, oxidative stress, and organ tissue injury in mice, but that a clove oil nanoemulsion significantly reversed these harmful effects — suggesting a natural antioxidant treatment may protect against nanoparticle toxicity.
UV filters in everyday cosmetic products, a comparative study
This study surveyed UV-filtering chemicals across 742 cosmetic products and found widespread presence in everyday personal care items. UV filters are increasingly detected as environmental and biological contaminants, reaching waterways through skin absorption and washing, where they can interact with microplastics and other pollutants.
Zinc oxide nanoparticles dissolution and toxicity enhancement by polystyrene microplastics under sunlight irradiation
Researchers found that polystyrene microplastics dramatically increased the sunlight-induced dissolution of zinc oxide nanoparticles, enhancing the release of toxic zinc ions and reactive oxygen species in aquatic environments.
Effects of UV radiation on natural and synthetic materials
Researchers reviewed how solar UV radiation degrades natural and synthetic materials like wood and plastic, noting that climate change may shorten material lifespans and that photodegradation of plastic waste is a key driver of microplastic generation — while also surveying emerging nanoscale stabilizers that could make materials more UV-resistant.
Differentiation of cellular responses to particulate and soluble constituents in sunscreen products
This study separated sunscreen products into their particle and dissolved components to understand which parts cause cell damage. Researchers found that dissolved chemical ingredients were the main drivers of overall toxicity, while solid particles, including microplastics and zinc oxide, primarily caused damage at the subcellular level. The work highlights that microplastic beads in sunscreens can alter how other ingredients are absorbed by cells.
Sunlight-Driven Photocatalytic Active Fabrics through Immobilization of Functionalized Doped Titania Nanoparticles
Researchers developed sunlight-driven self-cleaning fabrics by immobilizing zinc-doped titanium dioxide nanoparticles onto textiles, reducing the need for chemical detergents and limiting the release of microfibers and harmful effluents during washing.
UV & Thermal Resistant Biodegradable Polymer Blend for Smartphone Casing
Researchers synthesized a biodegradable polymer blend of starch-PVA cross-linked with SiO2, ZnO, and TiO2 nanoparticles for use as smartphone casings, achieving 92% UV-B blocking, a 40-degree improvement in thermal stability onset, and balanced mechanical properties.
Leaching of nanoparticles from nano-enabled products for the protection of cultural heritage surfaces: a review
This review assessed the leaching of nanoparticles from nano-enabled protective coatings applied to cultural heritage surfaces, evaluating how weathering processes release nanoparticles into the environment and discussing strategies for safer nanocomposite design in conservation applications.
Photodegradation of Microplastics by ZnO Nanoparticles with Resulting Cellular and Subcellular Responses
Researchers extracted both zinc oxide nanoparticles and microplastics from a commercial sunscreen and found that the zinc oxide accelerated the breakdown of microplastics under simulated sunlight. However, the degradation products proved toxic to human skin cells at certain concentrations, causing oxidative stress and DNA damage. This suggests that while sunscreen ingredients may break down microplastics, the resulting fragments could pose their own health risks.
UV-filter pollution: current concerns and future prospects.
This review examines how UV-filter chemicals from sunscreens and industrial products enter aquatic environments and what their ecological effects are. UV-filters are also used as additives in plastics, making their environmental release relevant to the broader chemical pollution associated with plastic waste.
Applications of Titanium Dioxide (TiO2) Nanoparticles in Photocatalysis
This review examines the photocatalytic applications of titanium dioxide nanoparticles, which are widely used for breaking down environmental pollutants including microplastics through light-driven chemical reactions. Researchers discuss how different crystal phases and modifications of these nanoparticles enhance their ability to degrade organic contaminants. The study highlights the potential of titanium dioxide-based photocatalysis as an environmentally friendly technology for addressing persistent pollutants.
The Influence of Mechanochemical Synthesis Method on Photodegradability Characteristics of Hydroxyapatite/Zinc Oxide Composite
Researchers synthesized a ZnO/hydroxyapatite nanocomposite via mechanochemical attrition milling and evaluated its photocatalytic degradation of methyl orange dye under UV irradiation, finding that compositions with 75% ZnO and 25% ZnO showed the best combined adsorption and photodegradation performance.
Herbal nanoemulsions in cosmetic science: A comprehensive review of design, preparation, formulation, and characterization
This review provides an overview of herbal nanoemulsion formulations used in cosmetics, covering how they are designed, produced, and characterized for delivering plant-based active ingredients through the skin. Researchers found that nanoemulsion technology improves the solubility and stability of natural compounds while offering better skin penetration than conventional formulations. The study highlights nanoemulsions as a promising, more natural alternative for cosmetic product delivery.
Visible-light photocatalysts: Prospects and challenges
This research update reviews the state of visible-light photocatalysis, discussing material types including metal oxides, organic semiconductors, and composites, their applications for environmental remediation and solar fuel generation, and the major challenge of scaling up photocatalytic processes to industrial viability. The authors identify cost-competitiveness with existing technologies as the primary barrier to practical deployment.
Biodegradable, Flexible and Ultraviolet Blocking Nanocellulose Composite Film Incorporated with Lignin Nanoparticles
Composite films combining cellulose nanofibrils with lignin nanoparticles from two isolation methods were fabricated, producing biodegradable, flexible materials with strong UV-blocking performance suitable as plastic film replacements. The lignin-CNF composites achieved UV absorbance through the natural chromophore properties of lignin without requiring synthetic UV additives.
Metal Oxides‐Based Nano/Microstructures for Photodegradation of Microplastics
This review covers how metal oxide materials, such as titanium dioxide and zinc oxide, can be used as photocatalysts to break down microplastics using sunlight. Some approaches can even convert plastic waste into useful fuels and chemicals. The technology offers a promising eco-friendly strategy for cleaning microplastics from water and wastewater systems.
Sunscreen and Coral Reef
This review examines how sunscreen chemicals, particularly UV filters, damage coral reef ecosystems when washed off swimmers into coastal waters. While focused on chemical contamination, it highlights the broader vulnerability of coral reefs to multiple human-derived pollutants including plastics.
Photodegradation Controls of Potential Toxicity of Secondary Sunscreen-Derived Microplastics and Associated Leachates
Researchers studied how sunlight breaks down microplastics from sunscreen products and whether this makes them more or less toxic. They found that sunlight aging caused chemical changes on the plastic surfaces and released harmful compounds into the water, increasing toxicity to aquatic organisms. This is relevant because sunscreen microplastics are commonly washed into oceans and lakes, where sun exposure could make them more dangerous over time.