Results 71 to 80 of about 5,608 (248)

X-ray-Induced Reversible Switching of an Azobenzene Derivative Adsorbed on Bi(111) [PDF]

, 2014
We report on the adsorption of a submonolayer of di-m-cyanoazobenzene (DMC) on Bi(111) and on the reversible switching of these molecules induced by resonant X-ray illumination.
A. Krüger, Alemani M., Asano T., Ast C. R., Bronner C., C. F. Hermanns, Choi B.-Y., Dürr H., Elsässer T., Füchsel G., Hagen S., Henzl J., Hofmann Ph., Hugel T., Jezequel G., Kirakosian A., Leyssner F., Lotze C., M. Bernien, Maurer R. J., Mazalova V., McNellis E. R., Mönig H., Piantek M., Priewisch B., Sekkat Z., Stöhr J., Thompson A. C., W. Kuch, Xiao S., Zhang C.   +30 more
core   +1 more source

Using the Photostationary State of Arylazopyrazoles to Control Phase Transitions of Liquid Crystals

Advanced Functional Materials, EarlyView.
A series of new arylazopyrazole photoswitches is designed as dopants for liquid crystalline materials. Unprecedented, the distribution of photoisomers at the photostationary state upon irradiation with light of specific wavelengths (365, 460, 520 nm) is used to control the liquid crystalline phase transitions under isothermal conditions, including ...
Tobias Thiele, Kristina Hrybenko, Christoph Wölper, Michael Giese   +3 more
wiley   +1 more source

Plasma dye coating as straightforward and widely applicable procedure for dye immobilization on polymeric materials [PDF]

, 2018
Here, we introduce a novel concept for the fabrication of colored materials with significantly reduced dye leaching through covalent immobilization of the desired dye using plasmagenerated surface radicals.
De Clerck, Karen, De Smet, Lieselot, Dubruel, Peter, Hoogenboom, Richard, Lava, Kathleen, Minshall, Peter, Schoolaert, Ella, Steyaert, Iline, Van De Walle, Elke, Vancoillie, Gertjan   +9 more
core   +3 more sources

A Programmable Semiconductor Containing Active Molecular Photoswitches Located in the Crystal's Volume Phase

Advanced Functional Materials, EarlyView.
A novel approach for the design of functional semiconductors is presented, which utilizes the excellent optoelectronic properties of layered hybrid perovskites and the possibility to introduce a molecular photoswitch as the organic spacer. This concept is successfully demonstrated on a coumarin‐based system with the possibility to change the bandgap ...
Oliver Treske, Yaşar Krysiak, Hans Tornatzky, Markus R. Wagner, Sebastian Polarz   +4 more
wiley   +1 more source

External Reflection From Two‐Photon Laser‐Printed Micromirrors Enables Photomechanical Actuation at a 90° Incident Angle

Advanced Functional Materials, EarlyView.
Light reflectance increases along incidence angle and transmittance significantly drops around 90‐degree incidence angle. Here, we report two‐photon laser printed micro mirrors that redirect the skimming light beam into normal light absorption. Using this technique, light‐driven micro walkers and grippers are demonstrated by using grazing incidence ...
Leilei Song, Jianfeng Yang, Hao Zeng
wiley   +1 more source

Modulating the Conductivity of Light-Responsive Ionic Liquid Crystals

Molecules
In this work, we describe the phase behaviour and the dielectric and conductivity response of new light-responsive ionic liquid crystals, ILCs, which can be applied as controllable electrolytes.
Umama Bendaoud, Pradip K. Bhowmik, Si L. Chen, Haesook Han, Seonghyeok L. Cox, Jasmin Liebsch, M. Blanca Ros, Thamil Selvi Velayutham, Nurul Fadhilah Kamalul Aripin, Alfonso Martinez-Felipe   +9 more
doaj   +1 more source

Design and synthesis of a photoswitchable guanidine catalyst

Beilstein Journal of Organic Chemistry, 2012
A novel design as well as a straight-forward synthesis for a photoswitchable guanidine catalyst is reported. Intense studies of the photochromic properties demonstrated the reversible switchability of its photosensitive azobenzene moiety. Its activity in
Philipp Viehmann, Stefan Hecht
doaj   +1 more source

Optical manipulation of sphingolipid biosynthesis using photoswitchable ceramides [PDF]

, 2019
Ceramides are central intermediates of sphingolipid metabolism that also function as potent messengers in stress signaling and apoptosis. Progress in understanding how ceramides execute their biological roles is hampered by a lack of methods to ...
Adada, Baeyer, Borowiak, Chiantia, D'Angelo, Eisenbraun, Feng, Frank, Frank, Frank, Gaebler, Garner, Garner, Haberkant, Hannun, Holthuis, Honigmann, Huitema, Höglinger, Höglinger, Jain, Kim, Kol, Koval, Leinders-Zufall, Li, Li, Liu, MacHin, McIntosh, Meikle, Mills, Mitsutake, Müller, Nishioka, Ogretmen, Ohira, Ojima, Oppolzer, Park, Peters, Priewisch, Rai, Seike, Sivakumar, Slotte, Strueben, Tafesse, Thiele, Wegner, Yamaoka, Yamashita   +51 more
core   +1 more source

Aqueous azobenzene switching [PDF]

Science, 2017
Photoswitches Photoswitching molecules can enable targeted delivery of drugs in the body, but the body is best penetrated by near-infrared radiation (wavelengths between 700 and 900 nanometers). Most photoswitching processes in molecules require shorter wavelengths, and high light intensities are needed to trigger two-photon processes.
openaire   +1 more source

Artificial Intelligence as the Next Visionary in Liquid Crystal Research

Advanced Functional Materials, EarlyView.
The functions of AI in the research laboratory are becoming increasingly sophisticated, allowing the entire process of hypothesis formulation, material design, synthesis, experimental design, and reiterative testing to be automated. In our work, we conceive how the incorporation of AI in the laboratory environment will transform the role and ...
Mert O. Astam, Ouassim L'Karkouri, Danqing Liu   +2 more
wiley   +1 more source