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4 Current white paper about the topic waterrss
Induced gratings: new method for the determination of nanoparticles
Although the ancient Egyptians already used inks 5000 years ago, inks and their properties have been continuously improved and refined over thousands of years. Nevertheless, the basic principle of tinta acqua (colored water) remains the same. Today, in addition to inks based on dissolved dyes, there are many which contain pigments in solid form. Unlike dyes, pigments do not dissolve in the medium but are present in dispersed form, e.g. as suspensions. Pigment-based inks have an advantage over those containing dissolved dyes: after drying, they are light-stable and less sensitive towards water or other solvents. They also have higher color intensity. This is an important criterion for the 'permanent document' quality rating...
The 2D coded tube offers an increasingly wide array of secure traceable sample storage solutions that are being adopted in industries including pharmaceuticals, biotechnology, clinical diagnostics, veterinary science and food and beverages. The sample security that 2D coded tubes provide is today universally accepted and welcomed in the market, although there are more considerations than just traceability. The latest development in 2D coded tube systems that combine flexibility, traceability and ensure the integrity of your precious samples are truly moving towards the ideal sample storage solution...
In today's competitive skin care market, consumers look for a range of benefits, superior aesthetics and cost effectiveness. In response, formulators strive to create products that are multifunctional, easy to use and effective in small quantities. At the same time, the most successful products deliver benefits that stand out from those of the competition. Creams, lotions and color cosmetics must be easy to spread and comfortable to wear, without feeling tacky or greasy. Silicones have been popular ingredients in skin care products for more than fifty years. These versatile materials are known for their emolliency, wetting and spreading characteristics and ability to provide unique aesthetics. As technology continues to evolve, silicones increasingly offer multifunctional, high performance properties. This article reviews some of the newest silicone technologies available for the formulation of innovative skin care products...
DLS analysis is a widely applied, non-invasive method for measuring the effective size of molecules in solution. This technique yields valuable information for the characterization of molecules and particles. It facilitates formerly laborious and time consuming measurements, e.g. screening for aggregates or determining optimal crystallization conditions for proteins. The Wyatt Plate Reader is the instrument of choice for any application where molecular size, stability and aggregation are of interest. It reads industry standard microplates with up to 1536 samples automatically and temperature-controlled, if desired. The applications of the technique are wide ranging and include many of the fastest growing areas of research - proteins, biomaterials, liposomes and micelles as well as the established uses for particle sizing and aggregation detection. Conscious of the numerous characterization challenges in the area of drug delivery systems and therapeutic antibodies...