chemistry

Jean-Claude Bradley presents on "Peer Review and Science2.0: blogs, wikis and social networking sites" as a guest lecturer for the “Peer Review Culture in Scholarly Publication and Grantmaking” course at Drexel University. The main thrust of the presentation is that peer review alone is not capable of coping with the increasing flood of scientific information being generated and shared. Arguments are made to show that providing sufficient proof for scientific findings does scale and...

Intestinal roundworms infect >2 billion of the poorest peoples and have received little attention. Very little money is spent on much needed drug development for human parasites, making them one of the great neglected tropical diseases. Recently, a new and powerful class of anti-roundworm drugs (anthelmintic) has emerged- crystal proteins (e.g., Cry5B) made by Bacillus thuringiensis (Bt). Here we show that combining Cry5B with nicotinic acetylcholine receptor agonists like tribendimidine and...

By Abnova - GST fusion proteins allow convenient affinity purification of many proteins of interest but the GST-tag may become inconvenient in various downstream applications. We use PreScission protease to digest the GST fusion proteins and the protein without GST-tag is obtained.

By Abnova - Bradford assay is a rapid and accurate method to determine the concentration of protein. The assay is based on the observation that the absorbance maximum for an acidic solution of Coomassie Brilliant Blue G-250 shifts from 465 nm to 595 nm when binding to protein occurs. Both hydrophobic and ionic interactions stabilize the anionic form of the dye, causing a visible color change. Within the linear range of the assay (~5-25 mcg/ml), the more protein present, the more Coomassie binds.

By Abnova - Silver staining is used to detect proteins after electrophoretic separation on polyacrylamide gels. It combines excellent sensitivity while using very simple and cheap equipment and chemicals. The procedures of silver staining are protein fixation, silver impregnation and image development.

Professor Dr. Badrul Khan, president and founder of McWeadon Education (http://mcweadon.com/site/index.php), USA presented his Global Education Framework: Preparing the Workforce of the Future at the Global HR Forum 2008 Conference held in Seoul, Korea.