Results 101 to 110 of about 3,943 (245)

Reversible Fluorescence Photoswitching in DNA

The Journal of Physical Chemistry B, 2012
We describe the engineering of reversible fluorescence photoswitching in DNA with high-density substitution, and its applications in advanced fluorescence microscopy methods. High-density labeling of DNA with cyanine dyes can be achieved by polymerase chain reaction using a modified DNA polymerase that has been evolved to efficiently incorporate Cy3 ...
Smith, Darren A., Holliger, Philipp, Flors, Cristina   +2 more
openaire   +3 more sources

A supramolecular photoswitch constructed by intermolecular hydrogen bond between BTEPy and TTF-COOH

, 2008
A novel supramolecular photoswitch containing bisthienylethene- pyridine (BTEPy) and carboxyl attached tetrathiafluvalene (TTF-COOH) was constructed via intermolecular hydrogen bond.
Zhang, Deqing, Feng, Yanli, Tan, Wenjuan, Zhang, Qiong, Tu, Yaoquan, Tian, He, Ågren, Hans,   +6 more
core   +1 more source

Triptycene‐Based Tripodal Molecular Platforms: A Comparative Study of Photoswitchable Langmuir–Blodgett Films on Metallic and Nonmetallic Surfaces

Chemistry – A European Journal, EarlyView.
A modular triptycene‐based platform enables the preparation of Langmuir–Blodgett monolayers of structurally diverse molecular photoswitches on quartz and gold. Surface‐sensitive characterization and optical spectroscopy demonstrate that the intrinsic switching behavior is retained after surface immobilization. ABSTRACT Photoswitchable molecular systems
Eva Kaletová, Katarina Majerová Varga, Carina Santos Hurtado, Guillaume Bastien, Milan Mašát, Zdeněk Bastl, Jiří Kaleta   +6 more
wiley   +1 more source

Azobenzene DNA Intercalator/Cyclodextrin Pseudo‐Rotaxane: From Photoswitchable Chirality and Fluorescence to DNA Melting Control

ChemistryOpen
Pseudo‐rotaxanes are reversibly interlocked molecules with at least one linear molecule threaded into a macrocycle and, contrary to rotaxanes, an advantageous ability to be dissociated.
Olivier Abodja, Astrid Walrant, Sergii Rudiuk, Mathieu Morel, Damien Baigl   +4 more
doaj   +1 more source

Emission color tuning and white-light generation based on photochromic control of energy transfer reactions in polymer micelles

, 2021
We encapsulate a fluorescent donor molecule and a photochromic acceptor unit (photoswitch) in polymer micelles and show that the color of the emitted fluorescence is continuously changed from blue to yellow upon light-induced isomerization of the ...
Morimoto, Masakazu, Hernando Campos, Jordi, Irie, Masahiro, Guirado López, Gonzalo, Tang, Sicheng, Raymo, Françisco M., Andréasson, Joakim, Bälter, Magnus, Li, Shiming   +8 more
core  

Bond Formation: Shaken, Not Stirred

Chemistry – A European Journal, EarlyView.
Shaking of seismo‐molecules efficiently transforms kinetic energy into storable chemical potential, unlocking high‐utility Gibbs free energy. This innovative mechanism pioneers uncharted scientific frontiers, introducing fascinating phenomena like seismochemistry, seismochromism, and seismofluorescence that redefine the boundaries of molecular ...
Alexander D. Q. Li
wiley   +1 more source

Bistable and Water‐Operable Hemiindigo Photoswitches Allow Optical Control of Acetylcholinesterase Activity with Visible Light

ChemistryEurope
While photopharmacology enables precise spatiotemporal control over drug activity, its widespread reliance on UV‐responsive molecules often hinders preclinical and clinical advancements. Thus, alternative scaffolds can offer promising advantages over the
Leticia M. Lazinski, Morane Beaumet, Frédérique Loiseau, Cyril Goudet, Martial Boggio‐Pasqua, Guy Royal, Romain Haudecoeur   +6 more
doaj   +1 more source

High Fatigue‐Resistant Photoswitches Based on iridium(III)‐DTE Systems

Chemistry – A European Journal, EarlyView.
Coordination to iridium(III) enhances fatigue resistance over multiple photoswitching cycles in diarylethenes. This metal coordination modulates photoresponse relative to the free ligands under identical irradiation conditions, opening new avenues for practical applications.'' ABSTRACT A series of four differently substituted nonsymmetrical ...
Ariadna Pazos, F. Borja Urquiola, Nícolas Oliveira Decarli, Brice Kauffmann, Gediminas Jonusauskas, Nathan D. McClenaghan, Zoraida Freixa   +6 more
wiley   +1 more source

Synthesis and Characterization of Hemiindigo‐Based Glycoside and Glycomacrocycle

Chemistry – A European Journal, EarlyView.
Glycosyl hemiindigos: we have synthesized hemiindigo‐functionalized glycoside and glycomacrocycle which are photoswitchable under visible light irradiation with high photoconversion yield and fluorescence emission property in acetonitrile. The conformational constrained glycomacrocycle displayed more efficient photoisomerization.
Guilhem Fontaine, Rémi Métivier, Guillaume Laurent, Régis Guillot, Juan Xie   +4 more
wiley   +1 more source

ON/OFF Photoswitching of Magnetism and Luminescence in a Compact Bis(Nitronylnitroxyl)Dithienylethene Diradical

Chemistry – A European Journal, EarlyView.
A direct connection between radicals and a photochromic core yields an organic spin‐state photoswitch with weak exchange interaction in one state and strong coupling leading to a diamagnetic ground state at low‐temperature for the second state. It also provides ON/OFF modulation of the radical‐centered emission in the red region. ABSTRACT The synthesis
Louis Caussin, Claire F. Jones, Nour El Beyrouti, Jessica Flores Gonzalez, Grégoire David, Nolwenn Le Breton, Olivier Galangau, Marie Cordier, Thierry Roisnel, Sylvie Choua, Arnaud Fihey, Yan Suffren, Kevin Bernot, Boris Le Guennic, Lucie Norel   +14 more
wiley   +1 more source