Results 81 to 90 of about 32,658 (300)

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

Multistate Azobenzene-Norbornadiene Photoswitches for Molecular Solar Thermal Energy Storage. [PDF]

Chemistry
Systems consisting of two different photoswitches (azobenzene and norbornadiene) are presented, which can be switched by light, store energy, and release it again. The combination of the switching units leads to synergistic effects. ABSTRACT The combination of two photochromic molecules into a multimodal photoswitch offers the potential to generate new
Arago G, Glüsenkamp KH, Haberhauer G.
europepmc   +2 more sources

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

Density functional theory study of azobenzene derivatives as potential materials for wettability switching

Қарағанды университетінің хабаршысы. Физика сериясы
In this study, density functional theory (DFT) is employed to analyze the properties of 16 azobenzene derivatives, assessing their potential as wettability switching materials. Inspired by K.
G. Adyrbekova, P. Saidakhmetov, R. Burganova, I. Piyanzina, G. Baiman, G. Baubekova, D. Tayurskii   +6 more
doaj   +1 more source

Molecular Appendix Adjusted Architectural Propagations of Red‐Light Controlled Macroscopic Photoactuating Performances

Advanced Robotics Research, EarlyView.
Amphiphilic chloroazobenzenes, bearing different amino acids as end groups alanine, phenylalanine, and valine, exhibit excellent photoisomerizations. Varying structures of three amino acid groups participate in supramolecular formations and therefore photoinduced morphological transformations via adjusting intermolecular interactions. These interaction
Shuangshuang Meng, Ming‐Hin Chau, Takashi Kajitani, Franco King‐Chi Leung   +3 more
wiley   +1 more source

Deep surface relief grating in azobenzene-containing materials using a low-intensity 532 nm laser

Optical Materials: X, 2019
The inscription of deep surface relief grating (SRG) in glassy monomeric azobenzene materials using a low intensity diode pumped solid state (DPSS) laser operating at 532 nm is demonstrated.
O. Sakhno, L.M. Goldenberg, M. Wegener, J. Stumpe   +3 more
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

A Versatile Strategy for Light-Driven Active Transport of Ions. [PDF]

Angew Chem Int Ed Engl
We report a light‐driven primary active transport system based on an azobenzene carrier that drives uphill ion movement across phase‐separated compartments. Tunable ion‐pairing enables selective co‐transport under buffered conditions, advancing synthetic systems that emulate biological ion pumps.
Yahaya S, Amano S, Nicoli F, Ragazzon G.
europepmc   +3 more sources

Fast Active Merging of Microdroplets in Microfluidic Chambers Driven by Photo-Isomerisation of Azobenzene Based Surfactants

Biosensors, 2019
In this work, we report on the development of a newly synthesized photoactive reversible azobenzene derived surfactant polymer, which enables active and fast control of the merging of microdroplets in microfluidic chambers, driven by a pulsed UV laser ...
Zain Hayat, Nizar Bchellaoui, Claire Deo, Rémi Métivier, Nicolas Bogliotti, Juan Xie, Malcolm Buckle, Abdel I. El Abed   +7 more
doaj   +1 more source

Liquid Crystalline Elastomers in Soft Robotics: Assessing Promise and Limitations

Advanced Robotics Research, EarlyView.
Liquid crystalline elastomers (LCEs) are programmable soft materials that undergo large, anisotropic deformation in response to external stimuli. Their molecular alignment encodes directional actuation in a monolithic structure, making them long‐standing candidates for soft robotic systems.
Justin M. Speregen, Timothy J. White
wiley   +1 more source