Recent in Chemistry (page 8 of 9)

Comparatively Speaking: Singlet vs. Triplet State of UV Filters

In this discussion, Tony O'Lenick looks to Craig Bonda to explain the photochemical differences between the singlet and triplet states of UV filters. These differences are important to the formulator, as their chemical reactions can lead to the destruction of sunscreens.

Comparatively Speaking: Precision vs. Accuracy in Formulating

Tony O'Lenick explains the difference between precision and accuracy as it relates to formulating; for instance, in the case of raw material consistencies between batches.

Amphiphilic Silicones to Extract Botanical Actives

Silicone-based compounds enable chemists to extract the desired fractions of materials from plants as well as impart cosmetic aesthetics. Here the authors discuss how to extract actives using amphiphilic silicones that have different partition coefficients, which are obtained by altering the ratio of oil-, water- and fluoro-soluble groups on the silicone molecule.

Comparatively Speaking: Adsorption vs. Absorption

Tony O’Lenick explains the difference between absorption and adsorption for the benefit of novice formulators.

Comparatively Speaking: Fatty Alcohols vs. Fatty Acids vs. Esters

In the present discussion of fatty alcohols, fatty acids and esters, Tony O’Lenick recruits Ismail Walele of Phoenix Chemical to explain the differences between them.

Comparatively Speaking: Traditional vs. Non-traditional Natural Oils

Industry expert Tony O'Lenick discusses the differences between the structures of traditional natural oils and non-traditional natural oils.

Comparatively Speaking: Natural Oils vs. Man-made Glyceryl Esters

Industry expert Tony O'Lenick compares natural oils with man-made glyceryl esters, noting that natural oils are made by living systems using enzymes and are currently an attractive option for their sustainability.

Comparatively Speaking: Types of Flow Behavior

The following excerpt is adapted from an article by Kelly Dobos of Kao Corp. that discusses fluid viscosity of cosmetic products, specifically types of flow behavior, which can be used by the formulator to determine the rheological properties of formulations.

Comparatively Speaking: Alkoxylation vs. Ethenification

Industry expert Tony O'Lenick discusses the difference between alkoxylation and ethenification; for one, while the two are related, ethenification uses an ester as the reactant rather than alcohol.

Comparatively Speaking: Homopolymer vs. Periodic vs. Statistical Copolymers

Tony O'Lenick discusses the differences between types of copolymers including: homopolymer, periodic (block) and statistical (random) and grafted.

Comparatively Speaking: Linear vs. Branched vs. Dendrimer Polymer Structures

Industry expert Tony O'Lenick explains the difference between polymer structures, the simplest being a linear chain with a single backbone, then increasing in complexity with one or more side chains or branches. Special types of branched polymers include dendrimers.

Comparatively Speaking: Cofactors vs. Coenzymes

Enzymes for DNA repair or Coenzyme Q10 for antioxidant and antiaging benefits have become typical ingredients in today's skin care. Here, industry expert O'Lenick illustrates the difference between cofactors and coenzymes.

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