Overview
ABSTRACT
Inorganic nanoparticles (NPs), with one dimension ranging from 1 to 100 nm, are widely present in consumer products, which raises concerns amongst the general public. This article summarises their uses, particularly in cosmetics and food products. Following a review of the health risks, the current regulations are outlined. Next, the principles of NP characterisation techniques are described, along with their advantages and drawbacks. The final section is devoted to the tools available for validating results in terms of NP size and concentration, as well as the application of these techniques to real samples.
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Read the articleAUTHORS
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Mathieu MENTA : Applications Engineer - UT2A, Pau, France
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Fabienne SEBY : Director of Ultra Traces Analyses Aquitaine - UT2A, Pau, France
INTRODUCTION
Applications of nanoscale materials have proliferated over the past twenty years, leading to their increasing presence in many consumer products . The primary advantage of nanomaterials (NM) lies in their small size (1 to 100 nm), which gives them unique properties. In fact, reducing the size to below the micrometer scale has revealed new properties not observed at more conventional sizes. This change in scale increases chemical reactivity and enhances the catalytic, electronic, magnetic, antimicrobial, thermal, mechanical, and optical properties of products.
Among these NMs, those of inorganic origin raise concerns among the general public due to their low degradability and their ubiquity in our daily lives. Their extremely small size also raises questions about their fate within the body, as it could allow them to cross biological barriers and reach certain organs. Furthermore, the intensive use of NMs may also pose a risk to the environment, as detectable concentrations have been found in aquatic environments
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KEYWORDS
analytical methods | inorganic nanoparticles | consumer products
CAN BE ALSO FOUND IN:
Characterization methods for inorganic nanoparticles in consumer products
Inorganic Nanoparticles in Our Daily Lives
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