Postnova Analytics has published a new application note that describes a new approach for analysis of titanium dioxide nanoparticles in commercial sunscreens.
The technique, which combines Inverse Supercritical Fluid Extraction (I-SFE) and Miniaturized Asymmetrical Flow Field-Flow Fractionation hyphenated with UV-Vis and MultiAngle Light Scattering (mAF4-UV-MALS) represents a promising tool for the verification of the nano-labelling of such products.
Due to the complexity of commercial sunscreen formulations, the determination of their nanoparticle content is usually very challenging and requires a tedious sample preparation step including the application of potentially hazardous organic chemicals.
The authors report on how 5 different commercial sunscreens were investigated for their nanoparticle content using I-SFE followed by mAF4-UV-MALS analysis.
Image Credit: Shutterstock.com
News This Week
New study shows risk factors for dementia – virus causes deposits in the brain
Research into the causes of Alzheimer's is not yet complete. Now a new study shows that head trauma can activate herpes viruses and promote the disease. Frankfurt am Main – As a neurodegenerative disease, [...]
Are Machines Truly Thinking? Modern AI Systems Have Finally Achieved Turing’s Vision
Modern AI systems have fulfilled Turing’s vision of machines that learn and converse like humans, but challenges remain. A new paper highlights concerns about energy consumption and societal inequality while calling for more robust [...]
The Surprising Link Between Smell, Sound, and Emotions
New research reveals how smell and hearing interact in the brain to drive social behavior, using mouse maternal instincts as a model. Imagine you’re at a dinner party, but you can’t smell the food [...]
Brain cells age at different rates
As our body ages, not only joints, bones and muscles wear out, but also our nervous system. Nerve cells die, are no longer fully replaced, and the brain shrinks. "Aging is the most important risk factor [...]
Long COVID Breakthrough: Spike Proteins Persist in Brain for Years
Researchers have discovered that the SARS-CoV-2 spike protein persists in the brain and skull bone marrow for years after infection, potentially leading to chronic inflammation and neurodegenerative diseases. Researchers from Helmholtz Munich and Ludwig-Maximilians-Universität (LMU) have [...]
Water-Resistant Paper Could Revolutionize Packaging and Replace Plastic
A groundbreaking study showcases the creation of sustainable hydrophobic paper, enhanced by cellulose nanofibres and peptides, presenting a biodegradable alternative to petroleum-based materials, with potential uses in packaging and biomedical devices. Researchers aimed to [...]
NIH Scientists Discover Game-Changing Antibodies Against Malaria
Novel antibodies have the potential to pave the way for the next generation of malaria interventions. Researchers at the National Institutes of Health (NIH) have identified a novel class of antibodies that target a previously unexplored region [...]
Surprising Discovery: What If Some Cancer Genes Are Actually Protecting You?
A surprising discovery reveals that a gene previously thought to accelerate esophageal cancer actually helps protect against it initially. This pivotal study could lead to better prediction and prevention strategies tailored to individual genetic [...]
Leave A Comment