Results 51 to 60 of about 8,279 (221)

Controlling Photochromism of Donor‐Acceptor Stenhouse Adducts on Micro‐Dot Arrays Beyond Human‐Eyes Resolution for Dynamic Light Encryption

Advanced Science, EarlyView.
This study presents a micro‐dot array strategy for dynamic light encryption, utilizing DASA‐based photochromism with resolution beyond human‐eye capacity. By precisely controlling isomerization kinetics, the method reveals multi‐layered encrypted information under specific light irradiation, enhancing information security and anti‐counterfeiting ...
Hongtao Hu, Fanxi Sun, Hanjun Zhang, Xiao Wang, Gaolu Zhu, Jiayu Li, Mengyao Yang, Xu Deng, Yonghao Zheng, Chen Wei, Dongsheng Wang   +10 more
wiley   +1 more source

Driven Dynamics: A Probable Photodriven Frenkel-Kontorova Model

, 2002
In this study, we examine the dynamics of a one-dimensional Frenkel-Kontorova chain consisting of nanosize clusters (the ''particles'') and photochromic molecules (the ''bonds''), and being subjected to a periodic substrate potential.
B. N. J. Persson, Bambi Hu, F. Marchesoni, H. S. J. van der Zant, Jian-Yang Zhu, L. M. Floria, M. Irie, M. Porto, M. V. Paliy, M. Weiss, O. M. Braun, P. Hänggi, P. J. Martinez, R. A. Guyer, S. Watanabe, T. Strunz, T. Tsujioka, Ya. Frenkel   +17 more
core   +1 more source

Ring closing reaction in diarylethene captured by femtosecond electron crystallography [PDF]

, 2013
The photoinduced ring-closing reaction in diarylethene, which serves as a model system for understanding reactive crossings through conical intersections, was directly observed with atomic resolution using femtosecond electron diffraction.
Asano Y., Bertarelli C., Boggio-Pasqua M., Carole A. Morrison, Cheng Lu, Chergui M., Clark S. J., Collet E., Coppens P., Dudek R. C., Dwyer J. R., Eichberger M., Erasmus N., Ern J., Ern J., Ern J., Ernstorfer R., Fritz D. M., Gao M., Gao M., Grimme S., Hallmann J., Han T.-R. T., Hania P. R., Hania P. R., Harb M., Harb M., Hubert Jean-Ruel, Ihee H., Irie M., Irie M., Jean-Ruel H., Kobatake S., Kochman M. A., Lai Chung Liu, Meng Gao, Michal A. Kochman, Miyasaka H., Miyasaka H., Miyasaka H., Morimoto M., Okabe C., Owrutsky J. C., Perdew J. P., Poulin P. R., R. J. Dwayne Miller, Ryan R. Cooney, Schotte F., Sciaini G., Sciaini G., Shim S., Siwick B. J., Srinivasan R., Tamai N., Tani K., Techert S., Tian H., Uchida K., Vorontsov I. I.   +58 more
core   +1 more source

Light‐Responsive Carbon Dots with Photochromism and Excitation‐Dependent Room Temperature Phosphorescence

Advanced Physics Research, EarlyView.
A light‐responsive system with photochromism and excitation‐dependent phosphorescence was constructed by microwave synthesis of nitrogen‐doped carbon dots(N‐CDs), which provides insights into the design and synthesis of CDs with multifunctional optical properties, promoting the application expansion of intelligent responsive materials in the fields of ...
Xiaoqi Fang, Yuan Li, Junjie Cui, Zhenye Xu, Zifei Ge, Chengwei Hu, Khurram Abbas, Hong Bi   +7 more
wiley   +1 more source

N-Methyl-4,4-bipyridinium and N-Methyl-N -oxide-4,4 -bipyridinium Bismuth Complexes - Photochromism and Photoluminescence in the Solid State [PDF]

, 2013
Three bismuth complexes based on N-methyl-4,4-bipyridinium (hMV(+)), (hMV)[Bi(hMV)Cl-5] (1), and N-methyl-N-oxide-4,4-bipyridinium (MVO+), [Bi(MVO)X-4(dmso)]center dot dmso [X = Cl (2), Br (3)], are reported.
C. Botta, N. Mercier, O. Toma
core   +4 more sources

Photoinduced Electron Transfer (PET) as Key to Accelerate the Cycloreversion Reaction of Arylquadricyclanes

Chemistry – A European Journal, EarlyView.
It is demonstrated that the photoinduced cycloreversion of a methoxynaphthylquadricyclane in the presence of suitable photocatalysts gives quantitatively the corresponding norbornadiene. As this photochromic norbornadiene‐quadricyclane cycle has favorable properties for light energy conversion, this method provides a useful tool for the targeted ...
Julian Felix Maria Hebborn, Heiko Ihmels, Marco Löcker, Thomas Paululat, Robin Schulte   +4 more
wiley   +1 more source

Crystals as Rockets: Modulation of the Salient Temperature in Cocrystals by Solvent Mixture Composition

Angewandte Chemie, Volume 138, Issue 18, 27 April 2026.
Compositionally engineered mixed solvated cocrystals enable modulation of thermosalient actuation. Guest ratio controls thermosalient temperature and propulsion intensity, providing a tunable platform for designing crystalline systems that exhibit stimuli‐responsive mechanical motion.
Ernesto A. Hernández‐Morales, Dayra Barreto‐Hernández, Dazaet Galicia‐Badillo, Rubén A. Toscano, M. Elena García‐Aguilera, Braulio Rodríguez‐Molina   +5 more
wiley   +2 more sources

Self-adaptive photochromism. [PDF]

Sci Adv
Organisms with active camouflage ability exhibit changeable appearance with the switching of environments. However, manmade active camouflage systems heavily rely on integrating electronic devices, which encounters problems including a complex structure, poor usability, and high cost .
Sun F, Gao A, Yan B, Zhang J, Wang X, Zhang H, Dai D, Zheng Y, Deng X, Wei C, Wang D.   +10 more
europepmc   +3 more sources

Photochromic organic-inorganic hybrid nanocomposite hard coatings with tailored fast switching properties [PDF]

, 1999
A recently developed photochromic organic-inorganic nanocomposite (Nanomer) coating system is investigated, which is based on an epoxysilane as network former, different bisepoxides as spacer and an organic amine as thermal cross-linker.
Fries, Kira, Mennig, Martin, Schmidt, Helmut K.   +2 more
core   +2 more sources

Fluorescent Diarylethenes With Polar Groups: Synthesis, Spectra, and Optical Microscopy Applications

Chemistry – A European Journal, EarlyView.
Blinking green and flashing red: photo‐switchable and photo‐activatable probes emitting green and red light were prepared and applied as bioconjugates in super‐resolution optical microscopy. ABSTRACT The use of photoactivatable fluorescent diarylethenes (fDAEs) in biology‐related light microscopy has been restricted by the lack of probes having freely ...
Kakishi Uno, Sven Nagorny, Ayse Aktalay, Dojin Kim, Mariano L. Bossi, Vladimir N. Belov, Stefan W. Hell   +6 more
wiley   +1 more source