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
This Common Vitamin May Help Stop Prediabetes From Turning Into Diabetes
Vitamin D may help prevent type 2 diabetes in people with specific genetic variations, offering a possible path toward personalized diabetes prevention. More than 40% of U.S. adults have prediabetes, a condition in which [...]
Ebola, hantavirus: Is the world prepared for the next pandemic?
Funding cuts to health research and a growing antivaccine movement are making it harder than ever to respond to viruses. The World Health Organization (WHO) has declared that an Ebola outbreak in Uganda and [...]
May 2026 Healthcare News and Trends: Market Signals That Matter
Artificial intelligence is dominating headlines, telehealth has settled into a new normal, and digital health continues to promise transformation. However, much of what is being discussed in healthcare today reflects potential rather than reality. [...]
Scientists Rewire Donor Stem Cells To Outsmart Aggressive Blood Cancers
Researchers have tested a gene-edited stem cell transplant designed to shield healthy blood-forming cells from powerful cancer-targeting immunotherapies. For patients with highly aggressive blood cancers, stem cell transplantation can offer a rare chance at [...]
Recent Digital Health Trends, Insights and News – May 2026
Last month marked continued progress as digital health moves into its next phase — from AI expanding into drug discovery and core infrastructure to new federal pathways accelerating device access and home-based care. Together, [...]
Cancer Mystery Solved: Scientists Discover How Melanoma Becomes “Immortal”
Scientists have uncovered a previously overlooked mechanism that may help melanoma cells become effectively “immortal.” Cancer cells face a major problem before they can become deadly: They have to figure out how to stop [...]
How Visual Neurons Organize Thousands of Synaptic Inputs
Summary: A new study uncovered the organizational rules that determine how neurons in the primary visual cortex process information. By imaging both the cell bodies (soma) and the individual synapses (on dendritic spines) of [...]
Scientists Just Found a Surprising Way To Destroy “Forever Chemicals”
Scientists have uncovered a new mechanism that may help break down highly persistent PFAS pollutants. PFAS have earned the nickname “forever chemicals” for a reason. These industrial compounds are so chemically durable that they [...]
Leave A Comment