By a News Reporter-Staff News Editor at Physics Week -- Current study results on Chemical Physics have been published. According to news reporting out of Tehran, Iran, by VerticalNews editors, research stated, "We study the conformations of a semiflexible chain, confined in nano-scaled spherical cavities, under two distinct processes of confinement. Radial contraction and packaging are employed as two confining procedures."
Our news journalists obtained a quote from the research from the Sharif University of Technology, "The former method is performed by gradually decreasing the diameter of a spherical shell which envelopes a confined chain. The latter procedure is carried out by injecting the chain inside a spherical shell through a hole on the shell surface. The chain is modeled with a rigid body molecular dynamics simulation and its parameters are adjusted to DNA base-pair elasticity. Directional order parameter is employed to analyze and compare the confined chain and the conformations of the chain for two different sizes of the spheres are studied in both procedures. It is shown that for the confined chains in the sphere sizes of our study, they appear in spiral or tennis-ball structures, and the tennis-ball structure is more likely to be observed in more compact confinements."
According to the news editors, the research concluded: "Our results also show that the dynamical procedure of confinement and the rate of the confinement are influential parameters of the structure of the chain inside spherical cavities."
For more information on this research see: Confinement dynamics of a semiflexible chain inside nano-spheres. Journal of Chemical Physics, 2013;139(4):782-789. Journal of Chemical Physics can be contacted at: Amer Inst Physics, Circulation & Fulfillment Div, 2 Huntington Quadrangle, Ste 1 N O 1, Melville, NY 11747-4501, USA. (American Institute of Physics - www.aip.org/; Journal of Chemical Physics - jcp.aip.org/)
Our news journalists report that additional information may be obtained by contacting A. Fathizadeh, Sharif Univ Technol, Dept. of Phys, Tehran, Iran. Additional authors for this research include M. Heidari, B. Eslami-Mossallam and M.R. Ejtehadi.
Keywords for this news article include: Iran, Asia, Tehran, Chemical Physics
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