The European Physical Journal B (EPJ B)

Time 2020-11-18 15:04:25

Web Name: The European Physical Journal B (EPJ B)

WebSite: http://epjb.epj.org

ID:120099

Keywords:

European,The,Physical,TheEuropeanPhysicalJournalB,CondensedMatter,ComplexSystems

Description:

Streamlines of the fluid flow induced by a single point force (Stokeslet) representing a microswimmer inside a freely moving viscous drop.Mathematical models of the motion of cells in viscous liquids that show how this motion is affected by the presence of a surfactant coating have applications in the design of artificial microswimmers for targeted drug delivery, micro-surgery and other applications.Many types of motile cells, such as the bacteria in our guts and spermatozoa in the female reproductive tracts, need to propel themselves through confined spaces filled with viscous liquid. In recent years, the motion of these ‘microswimmers’ has been mimicked in the design of self-propelled micro- and nano-scale machines for applications including targeted drug delivery. Optimising the design of these machines requires a detailed, mathematical understanding of microswimmers in these environments. A large, international group of physicists led by Abdallah Daddi-Moussa-Ider of Heinrich-Heine-Universität Düsseldorf, Germany has now generated mathematical models of microswimmers in clean and surfactant-covered viscous drops, showing that the surfactant significantly alters the swimmers’ behaviour. They have published their work in EPJ E. Read more... A schematic of a monolayer of black phosphorus under the influence of an external magnetic field. (Liu. C., Wu. F., Jiang. Q., Chen. Y., Yin. C.)New research reveals that applying a magnetic field to a chiral metamaterial can change the way it polarises light. Optical activity in chiral molecules has become a hot topic in physics and optics, representing the ability to manipulate the polarized state of light. Understanding how molecules rotate the plane of plane-polarized light has widespread applications, from analytic chemistry to biology and medicine — where it can, for example, be used to detect the amount of sugar in a substance. A new study published in EPJ B by Chengping Yin of the Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China, aims to derive an analytical model of optical activity in black phosphorous under an external magnetic field. Read more... Glycine fragments during heavy ion bombardment. Source Research published in EPJ D has revealed how the nature of biomolecule fragmentation varies with the energies of electrons produced when living cells are irradiated with heavy ions. When living cells are bombarded with fast, heavy ions, their interactions with water molecules can produce randomly scattered ‘secondary’ electrons with a wide range of energies. These electrons can then go on to trigger potentially damaging reactions in nearby biological molecules, producing electrically charged fragments. So far, however, researchers have yet to determine the precise energies at which secondary electrons produce certain fragments. In a new study published in EPJ D, researchers in Japan led by Hidetsugu Tsuchida at Kyoto University define for the first time the precise exact ranges in which positively and negatively charged fragments can be produced. Read more... I am naturally indebted to you and the referees who contributed to this success with your time and constructive advice.Hamid Assadi

TAGS:European The Physical TheEuropeanPhysicalJournalB CondensedMatter ComplexSystems

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The European Physical Journal B (EPJ B) publishes regular articles and colloquia in Condensed Matter and Complex Systems

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