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New in Delivery (page 7 of 17)
Nov 01, 2010 | 01:40 PM CDT
By: Katie Schaefer, Cosmetics & Toiletries…
Iontophoresis is a well-known, noninvasive method that uses a small electric charge to deliver chemicals through the skin. However, according to Gregory Schultz, PhD, and Daniel Gibson, a professor and doctoral candidate, respectively, at the University of Florida, this method of delivery can have its drawbacks. Together with co-inventor, Sonal Sanjeev Tuli, MD, the team developed a method to iontophorese macromolecules into tissue such as the skin without causing damage; however, initial research focused on the eye.
Sep 29, 2010 | 11:41 AM CDT
By: Johann W. Wiechers, PhD, JW Solutions, and Eli…
This first of a two-part series on SLNs and NLCs describes the differences between the two types and their delivery capabilities. The terms solid lipid nanoparticles and nanostructured lipid carriers are not very useful to distinguish these two delivery systems since both are solid, both are lipids, both are nanoparticles, and both are carrier systems. The only real difference between the two is the purity of the single lipid used in SLNs or multiple lipids used, i.e. one solid and one liquid, in NLCs. This factor has an enormous impact on the crystallinity of the lipid phase, which subsequently influences the loading capacity of the system for encapsulated active ingredients or API.
Sep 28, 2010 | 11:11 AM CDT
A Spanish fashion designer and a professor of particle technology have combined forces to create a spray-on fabric with applications in the fashion, automotive, medicinal and personal care industries.
Sep 01, 2010 | 10:52 AM CDT
By: Katie Schaefer, C&T magazine
In 1876, Charles Darwin observed the secretion of yellow matter from the rootlets of ivy. Little was known about the material until 2008, when Mingjun Zhang, PhD, an associate professor of biomedical engineering at the University of Tennessee, and his research team found nanoparticles in the yellow matter.
Sep 01, 2010 | 10:47 AM CDT
Environmentally Responsive Nanoparticles for Delivery as Assessed via Light Scattering and Near-infrared Imaging
By: Andrew Harper; Steve Tonge, PhD; Lisa Makein, …
Lipid-based nanoparticles were developed to respond to environmental stimuli and used as site-directed delivery systems. Through Dynamic Light Scattering (DLS), the self-assembly of these 10–40 nm particles was observed. In addition, the penetration of the particles through the stratum corneum was monitored in vivo using a novel Near-infrared Chemical Imaging (NIR-CI) technique.
Sep 01, 2010 | 10:41 AM CDT
By: Isabelle Rodriguez, PhD, Roberto Fenollosa, Ph…
Silicon microspheres are described as UV, visible and infrared (IR) radiation filters. Parameters of these spheres including shape, smoothness, refractive index and size are examined for their potential benefits in cosmetic formulations. Finally, the ability of the spheres to block IR radiation is evaluated for thermo-regulatory effects.
Jul 30, 2010 | 02:32 PM CDT
By: Nitika U. Bhargava, Vijayanand P. Magar and Sh…
Fragrances are volatile and susceptible to oxidation, and can escape from a finished product over time. This limited longevity has led to the development of encapsulation and controlled-release techniques. The present article reviews methods for controlling the release of fragrance in personal care products, and describes their mechanisms of action.
Jul 27, 2010 | 11:03 AM CDT
Researchers from the Shanghai Institute of Applied Physics at the Chinese Academy of Sciences have developed a graphene-based nanosheet paper with an inherent ability to fight disease-causing bacteria.
Jul 19, 2010 | 10:38 AM CDT
The number of nanotechnology patents related to personal care products has grown 103% in the past seven years, according to an analysis of world patent activity published by the IP Solutions business of Thomson Reuters.
Jul 13, 2010 | 05:01 PM CDT
Researchers at the University of Bath and in the burn center at the Frenchay Hospital in Bristol are working with a nanotechnology to develop medical dressings that release actives in the presence of bacteria to treat infection, changing color while doing so.