Research Keyword: photocatalysis

Photoregulation of the biosynthetic activity of fungus Inonotus obliquus using colloidal solutions of biogenic metal nanoparticles and low-intensity laser radiation

Scientists studied how to enhance the medicinal properties of chaga mushroom using tiny metal particles and laser light. They found that adding silver, iron, or magnesium nanoparticles to growing mushroom cultures increased biomass production. When combined with laser treatment, these nanoparticles dramatically boosted the production of beneficial compounds like polysaccharides, flavonoids, and melanin pigments that have health benefits including antioxidant and immune-boosting properties.

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Microplastic pollution in Himalayan lakes: assessment, risks, and sustainable remediation strategies

Plastic particles called microplastics are increasingly polluting Himalayan lakes through tourism, waste, and glacier melting, harming fish and water quality. Scientists are testing various cleanup methods including physical filters, chemical treatments, and microbe-based solutions. Tiny engineered materials under UV light show promise for breaking down plastics in cold mountain environments. Better policies, monitoring, and community action are needed to protect these important freshwater sources.

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Effect of nano-TiO2 size and utilization ratio on the performance of photocatalytic concretes; self-cleaning, fresh, and hardened state properties

Scientists developed a new type of concrete that can clean itself by breaking down pollutants in water using nano-sized titanium dioxide particles and sunlight. The study tested different sizes and amounts of these nanoparticles to find the best combination for removing textile dyes from wastewater. While the larger nanoparticles worked better for photocatalytic cleaning, the smaller ones made the concrete stronger, suggesting a trade-off between cleaning ability and structural durability.

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On the Origin of Life on Earth: The Nanozymes Hypothesis, and More

Scientists propose that tiny mineral particles called nanozymes, naturally occurring on early Earth, acted like primitive chemical factories to build the first molecules of life from simple gases and chemicals. These mineral particles could use sunlight energy to create organic molecules and gradually helped assemble proteins, DNA, and RNA from scratch. This theory bridges many competing ideas about life’s origins and explains how life emerged from non-living matter billions of years ago.

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Biological applications of yttrium oxide nanocomposites synthesized from Aspergillus penicillioides and their potential role in environmental remediation

Researchers used a fungus called Aspergillus penicillioides to create tiny particles of yttrium oxide that can remove dangerous metals like lead and nickel from contaminated water. These particles work like microscopic sponges that grab onto the toxic metals when exposed to UV light. The particles also kill bacteria and fight harmful free radicals, making them useful for both cleaning water and potentially treating infections.

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