Silk remarkable mechanical properties, comparative biocompatibility, tunable degradation rates "in vitro" and "in vivo", the ease to load cellular growth factors (for example, BMP-2), and the ability to be processed into several other formats such as films, gels, particles, and scaffolds. Silks from "Bombyx mori", a kind of cultivated silkworm, are the most widely investigated silks. Silks derived from "Bombyx mori" are generally made of two parts: the silk fibroin fiber which contains a light chain of 25kDa and a heavy chain of 350kDa (or 390kDa) linked by a single disulfide bond and a glue-like protein, sericin, comprising 25 to 30
Ipsos MORI 1969 by Robert Worcester, and throughout its existence was the largest independent research organisation in the United Kingdom. MORI was bought by Ipsos in 2005 for £88 million, the combined company being now known as 'Ipsos MORI'. The same year, Robert Worcester stepped down from chairmanship of MORI. Ben Page is now Chief Executive. In 2006, Ipsos MORI were the first research agency in the world to gain ISO 20252, the new international quality standard for research. Ipsos MORI is a current member of the Market Research Society and are obliged to conduct surveys according to their rules. For example,