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Chemistry
New in Chemistry (page 7 of 23)
Jan 21, 2010 | 04:02 PM CST
Strong, Self-healing Hydrogel Created for Tissue Engineering
Researchers from the University of Tokyo have created a strong, self-healing hydrogel with applications in tissue engineering and drug delivery. The material incorporates a binder made from long chains of polyethylene glycol, an ingredient commonly used in skin care.
Jan 19, 2010 | 05:17 PM CST
Comparatively Speaking: Proteins vs. DNA vs. Sugars
By: Anthony O'Lenick, Jr., Siltech LLC
Industry expert Tony O'Lenick discusses the structural differences between the biopolymers DNA, sugars and proteins, which are all important to life but function differently in the cell and in cosmetic products.
Jan 12, 2010 | 10:39 AM CST
Comparatively Speaking: Radical vs. Ring-opening Polymerization
By: Anthony J. O'Lenick Jr., Siltech LLC
Industry expert Tony O'Lenick discusses the differences in chemistry between radical polymerization and ring-opening polymerization.
Jan 05, 2010 | 01:45 PM CST
Comparatively Speaking: CAPB from Coconut Oil vs. Fatty Acid
By: Anthony J. O'Lenick, Jr., Siltech LLC
Anthony J. O'Lenick, Jr., explains that CAPB can be made from two different processes, one with coconut oil and the other with fatty acid, which create two potential differences that affect how the material works in a formulation.
Jan 04, 2010 | 02:06 PM CST
Is Cosmetics Science Really "Bad"? Part III: Evidence to Support Claims in the Real World
By: Johann W. Wiechers, PhD, JW Solutions
This is the third column of a series that applies Michael Shermer's "Baloney Detection Kit" to cosmetic science. This column tackles the fourth, fifth and sixth of ten core questions included in the "kit": those relating to claims substantiation.
Dec 15, 2009 | 04:00 PM CST
Comparatively Speaking: Compounds vs. Compositions
By: Anthony J. O'Lenick, Jr., Siltech LLC
The difference between a compound and a composition has a dramatic effect upon the ability to formulate. The vast majority of raw materials used in formulations are not compounds, but rather complex mixtures called compositions.
Dec 02, 2009 | 09:47 AM CST
Comparatively Speaking: Static vs. Dynamic Measurement of Surface Tension
By: Anthony J. O'Lenick, Jr., Siltech LLC
Surface tension determines the properties of formulations. How does one measure surface tension? Since, realistically, there is more than one surface tension in a liquid, measurements can vary depending upon the method used. Here, industry expert Tony O'Lenick discusses static and dynamic approaches to measuring surface tension.
Oct 06, 2009 | 04:10 PM CDT
Comparatively Speaking: Isotactic vs. Syndiotactic vs. Atactic in Polymers
By: Anthony J. O'Lenick, Jr., Siltech LLC
Anthony J. O'Lenick, Jr., asks Thomas O'Lenick, a doctoral candidate in polymer chemistry at the University of Tennessee, to explain the difference between isotactic, syndiotactic and atactic polymers.
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Sep 24, 2009 | 02:49 PM CDT
Ingredients–Add or Subtract?
The availability of an increasing number of ingredients is making the job of the formulating chemist more difficult. Joe Lin, PhD gives some insight into how to address this issue.
Sep 08, 2009 | 04:24 PM CDT
Comparatively Speaking: Humectants vs. Emollients vs. Occlusive Agents
By: Anthony J. O'Lenick, Jr., Siltech LLC
Tony O’Lenick asks industry expert Kelly Dobos of Kao Brands to explain the difference between humectants, emollients and occlusive agents.