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The Hidden Risks of Nanoparticles: What You Need to Know
The Hidden Risks of Nanoparticles: What You Need to Know
The Impact of Nanoparticles on Human Health and the Environment: review of toxicity factors, exposures, control strategies, and future prospects
by Yannis - S4M
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The following is the summary of the 22-page article published in 2014, Environmental Science and Pollution Research, by Muhammad Sajid, Muhammad Ilyas, Chanbasha Basheer, Madiha Tariq, Muhammad Daud, Nadeem Baig , Farrukh Shehzad. ©Springer-Verlag Berlin Heidelberg 2014
Introduction
Introduction
Nanotechnology has revolutionized industries from medicine to electronics, but with great innovation comes potential risks. The following review article sheds light on the toxicity of nanoparticles (NPs) and their far-reaching effects on human health and the environment. Here’s what you need to know.
Key Takeaways
Key Takeaways
What Makes Nanoparticles Toxic?
Size Matters: Smaller NPs (e.g., <10 nm) are more reactive and penetrate cells more easily, causing greater harm.
Shape and Surface Chemistry: Rod-shaped NPs or those with specific coatings (e.g., cationic) can be more toxic than spherical or anionic ones.
Reactivity: NPs generate reactive oxygen species (ROS), leading to cellular damage, inflammation, and DNA disruption.
How Do Nanoparticles Enter Our Bodies?
Skin Contact: NPs in cosmetics (e.g., sunscreens with TiO₂) can penetrate through hair follicles or damaged skin.
Inhalation: Airborne NPs (e.g., from industrial processes) lodge deep in lungs, potentially entering the bloodstream.
Ingestion: NPs in food, water, or packaging accumulate in the digestive tract, with unknown long-term effects.
Environmental Impact:
Aquatic Life: NPs like silver (Ag) and titanium dioxide (TiO₂) harm fish, algae, and crustaceans, disrupting ecosystems.
Soil Health: Metal-based NPs (e.g., ZnO, CeO₂) reduce microbial activity and earthworm populations, threatening soil fertility.
How Can We Mitigate Risks?
Regulation: Stricter guidelines are needed for NP use in consumer products.
Safety Measures: Workers in NP industries should use protective gear (masks, gloves) and proper ventilation.
Research Gaps: More studies are needed to understand long-term effects and safe exposure limits.
Why This Matters
Why This Matters
In the following table are examples of nano-sized materials, their applications, and the toxicity they cause.
Ag= silver, NPs = Nanopatricles, Au= Gold, TiO2= titanium dioxide, CNT= Carbon Nanotubes.
Nanoparticles are everywhere—from sunscreen to smartphones. While their benefits are undeniable, their potential harms demand attention. As consumers, staying informed and advocating for safer practices can drive meaningful change.
In the following table are examples of nano-sized materials, their applications, and the toxicity they cause.
Ag= silver, NPs = Nanopatricles, Au= Gold, TiO2= titanium dioxide, CNT= Carbon Nanotubes.
Call to Action
Call to Action
Check labels for nano-ingredients (e.g., "TiO₂, “SiO2" etc).
Share this post to spread awareness!
Download the study at the end of my Substack post: https://solutions4mankind.eu/1hy66l
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