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DNA Packaging in Bacteriophage: Is Twist Important?
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ABSTRACT
We study the packaging of DNA into a bacteriophage capsid using computer simulation, specifically focusing on the potential impact of twist on the final packaged conformation. We perform two dynamic simulations of packaging a polymer chain into a spherical confinement: one where the chain end is rotated as it is fed, and one where the chain is fed without end rotation. The final packaged conformation exhibits distinct differences in these two cases: the packaged conformation f...
Related newspaper, magazine, and journal articles from HighBeam Research
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A review of the fundamentals of crosslinking with peroxides.
Rubber World
; Crosslinking elastomers with peroxides has been known for more than 50 years. In the early years, peroxide vulcanization was not considered to have commercial utility. A popular organic chemistry text published in 1944 dismissed peroxide vulcanization with the comment: Peroxides produce
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Polymer `Snakes' May Strike upon Tougher Materials.(Brief Article)
R & D
; With serpentine flair, hot polymer chains coil back and snap forward, leaving a rippling signature wherever plastics are joined, according to research from the Univ. of Delaware, Newark (302-831-6408). The discovery could lead to stronger materials for aircraft, farm equipment, medical devices, and
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Living-Radical Polymerization -- A New Way to Do Chemistry.
Canadian Chemical News
; This article presents an overview of why scientists at Xerox became interested in developing a living-radical polymerization process and how they managed to be successful. Polymeric materials are ubiquitous in our daily lives. They can be found in the soles of the shoes we wear, the gum we chew,
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Custom mixing of silicone rubber.
Rubber World
; Custom mixing of silicone rubber The silicone polimer is based on what has become one of the most versatile molecules available to man since its commercial development around 1940, solving materials challenges across many industries in a wide variety of physical forms. The family of organo-silicon
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Conductive polymer.(Research Update)
High Performance Plastics
; US researchers have developed a conductive plastic based on polyethylene-dioxythiophene (PEDOT) that they claim is simpler to manufacture than other types. Moreover, it is stated to easily accommodate chemical attachments to create new materials. Developed by TDA Research in Wheat Ridge, Colorado,
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