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Recent in Chemistry (page 1 of 9)

A New Code for Skin Care: RNAi to Rewrite Cosmetics, Part I

For several years, the cosmetics industry has been exploring the potential for RNA interference (RNAi) technologies in skin and hair care. This first in a three-part series reviews the utility of RNAi and current efforts to bring RNAi-based cosmetics to market. Part II, in January 2018, will consider the delivery of RNAi into skin.

In Light of Exposure: Understanding Avobenzone Part I, Characterization

Avobenzone is a widely used UV-absorbing organic filter. Its dynamic nature and photophysical and photochemical properties are responsible for its widespread use. This first in a two-part series reviews its inherent characteristics and behavior in solvents; part two will consider its behavior with other sunscreens and in formulas.

Preserving the Facts on Parabens: An Overview of These Important Tools of the Trade

Parabens have a long history as effective preservatives in foods, cosmetics and drugs, with extensively documented human and environmental safety profiles. This article reviews these important ingredients.

The Name's Bond, H-F Bond. Leveraging Divergent Fluorine Forces

Intermolecular forces such as dispersion forces and hydrogen bonds are the basis for a theory explaining the behavior and benefits of perfluoropolyethers and perfluorocarbons. The former, in liquid form, are explored here for their application in cosmetics and personal care; the latter are described for speculation purposes.

Olefin Synthesis Simplified

Decarboxylative alkenylation is a new chemical reaction that is said to "easily turn carboxylic acids into alkenes (or olefins)." Researchers believe this will lead to the discovery and development of a variety of new drugs and other chemicals.

The Brave New World of Silicone Alternatives

The road forward for cosmetic formulation doesn't include as many of the silicones of old, according to Tony O'Lenick, president of Siltech LLC.

Antioxidant Enzyme Found in P. Acnes

Researchers in Sweden discovered a potential in protecting skin against diseases with an antioxidant-rich enzyme, RoxP. They believe future testing with this enzyme can lead to positives where formulators can include RoxP in sunscreens to help prevent life-threatening diseases.

Unearthing the Secret to Stability from Clay

Researchers in Rio de Janeiro, São Paulo and Trondheim, Norway, have been playing in the mud—or clay, rather, and may have unearthed the secret to stable emulsions.

Sweet Potatoes: Uber Tubers Packing an Antioxidant, Antimicrobial Punch

Sweet potatoes have risen in rank as consumers realize not just their nutritional, but overall health benefits. So if Aunt Mary passes them your way at dinner, try a dollop.

Nanoceria Leaves Free Radicals Singing the Blues

In new work published by the Royal Society of Chemistry, researchers found that a blue-tinted nano cerium oxide (nanoceria) acted as a potent free radical scavenger. But why blue? The answer isn't clear.

Smell That? Neither Do Beiersdorf Researchers

Beiersdorf researchers have developed a deodorant based on polyquaternium-16 that decreased the production of axillary bacteria, in turn reducing malodor. So no, there's nothing to smell here (but innovation).

Hyaluronic Acid Intensified: Cross-linking Improves Stability, Functionality

To enhance the functionality and stability of topical high molecular weight hyaluronic acid (HA), derivatives were developed using divinyl sulfone as a cross-linker. The cross-linked HA gels formed were assessed as described here in terms of water-binding capacity, delivery of actives and stability against heat, free radicals, other chemicals and pH changes, and compared with non-cross-linked native HA.

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