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10 Current news about the topic molecular switches

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Metallic surfaces help molecular quantum switch

Quantum molecular switches operate by hydrogen tunneling with some help

20-Nov-2020

The quantum dynamics of hydrogen is central to many problems in nature, being strongly influenced by the environment in which it takes place. In their contribution to PRL, members of the Lise Meitner Group at the MPSD address hydrogen transfer within a supported molecular switch, showing that the ...

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Smart bottle brushes

Neutrons make structural changes in molecular brushes visible: Promising candidates for a variety of applications

02-Nov-2020

They look like microscopic bottle brushes: Polymers with a backbone and tufts of side arms. This molecular design gives them unusual abilities: For example, they can bind active agents and release them again when the temperature changes. With the help of neutrons, a research team from the ...

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Researchers create a photographic film of a molecular switch

Following the motion of a light-responsive molecule

22-Jun-2020

Molecular switches – they are the molecular counterparts of electrical switches and play an important role in many processes in nature. Such molecules can reversibly interconvert between two or more states and thereby control molecular processes. In living organisms, for example, they play a role ...

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Switching with molecules

Molecular switch will facilitate the development of pioneering electro-optical devices

28-May-2018

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based ...

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Photoreversible molecular switch changes the physical property of thermoresponsive polymer

05-Feb-2018

Researchers have developed a novel strategy to control the shapes of polymeric materials by utilizing photoresponsive molecular switches, which may evolve tractable stimuli-responsive soft materials. Ionic liquids (ILs) are liquid-state salts at room temperature and are high-potential materials ...

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Slowing the clockwork of molecular motors

20-Sep-2017

Progress on the way to smart nanomachines: Chemists of Ludwig-Maximilians-Universitaet (LMU) in Munich have modified the synthesis of a molecular motor so as to reduce the speed of its light-driven rotation, thus permitting the researchers to analyze the mechanism of motion in complete ...

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Flipping the switch on ferroelectrics

30-Aug-2017

Many next-generation electronic and electro-mechanical device technologies hinge on the development of ferroelectric materials. The unusual crystal structures of these materials have regions in their lattice, or domains, that behave like molecular switches. The alignment of a domain can be ...

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Optical control of magnetic memory

New insights into fundamental mechanisms

29-Aug-2017

A research team at Helmholtz-Zentrum Berlin (HZB) has shown for the first time how laser modulation of magnetic properties in materials is influenced by thermal effects and how the process occurs under moderate experimental parameters. At the same time, the scientists discovered a previously ...

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Pushing a single-molecule switch

19-Jul-2016

Everybody knows the force that is required to activate a light switch on a wall - a finger is enough. But how much force do you need to apply if the device was dramatically reduced to the "nanoscale world", that is, how much force do you need to operate a "single-molecule switch"? This ...

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A molecular light switch?...Just add water

17-Dec-2015

A bit of stray moisture during an experiment tipped off scientists about the strange behavior of a complex oxide material they were studying--shedding light on its potential for improving chemical sensors, computing and information storage. In the presence of a water molecule on its surface, the ...

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