Results 91 to 100 of about 6,093 (220)

Traceless Regulation of Genetic Circuitry

Advanced Science, EarlyView.
Energy‐based, as opposed to molecular, control offers unprecedented improvements in key circuit parameters. This review summarizes the fundamentals of such traceless switches, categorizes them by trigger modalities, and compares and contrasts distinct advantages as well as shortcomings of each kind.
Gokberk Unal, Martin Fussenegger
wiley   +1 more source

Selection of isomerization pathways of multistep photoswitches by chalcogen bonding

Nature Communications, 2023
Multistep photoswitches are able to engage in different photoisomerization pathways and are challenging to control. Here we demonstrate a multistep sequence of E/Z isomerization and photocyclization/cycloreversion of photoswitches via manipulating the ...
Shuaipeng Jia, Hebo Ye, Peng He, Xin Lin, Lei You   +4 more
doaj   +1 more source

Storage and Processing of Information Using Molecules: The All-Photonic Approach with Simple and Multi-Photochromic Switches [PDF]

, 2013
The use of photochromes for the implementation of molecular logic operations is a very promising approach toward molecular computing. This statement is based on a) the possibility of operating such molecular devices exclusively with photonic signals and ...
Andreasson, Andréasson, Andréasson, Andréasson, Andréasson, Andréasson, Andréasson, Andréasson, Andréasson, Berberich, Chen, Credi, de Ruiter, de Silva, de Silva, Fukaminato, Guo, Guo, Hirshberg, Kumar, Kärnbratt, Langford, Langford, MacVittie, Margulies, Margulies, Myles, Pischel, Pischel, Pischel, Puntoriero, Pärs, Qu, Raymo, Raymo, Raymo, Remón, Remón, Silvi, Straight, Sun, Suresh, Tian, Zhang, Zhang, Zou   +45 more
core   +1 more source

Bistable Dual‐Responsive Azobenzene‐co‐PNIPAM Soft Microactuators via Two‐Photon Direct Laser Writing

Advanced Intelligent Systems, EarlyView.
This work shows the successful integration of intrinsic bistability into thermoresponsive soft microactuators, fabricated by two‐photon polymerization utilizing the (E)–(Z)‐isomerization of azobenzenes. The bistable behavior accounts for a reversible volume change of Azo_pNIPAM microactuators initiated by light irradiation, at constant ambient ...
Chantal Barwig, Ruchira Colaco, Alina‐Sophie Koch, Sophie Geiger, Ernest R. Curticean, Irene Wacker, Zhe Wang, Målin Schmidt, Annabelle Sonn, Sadaf Pashapour, Fereydoon Taheri, Rasmus R. Schröder, Anne Staubitz, Christine Selhuber‐Unkel   +13 more
wiley   +1 more source

Photoswitchable basicity through the use of azoheteroarenes

, 2016
We report an azoheteroarene photoswitchable base, where proton stabilisation in Z isomer is facilitated by neighbouring imidazole rings. A 1.3 unit difference in pKa is observed between the E and Z isomers, which leads to the ability to reversibly ...
Fuchter, MJ, Richardson, RD, Weston, CE
core   +1 more source

Physical optics characterization of a THz time domain system: UWB leaky lens antenna vs. Austin switch [PDF]

, 2010
In this work we show that a THz time domain system based on photoconductive antennas can be improved by over one order of magnitude by using the Ultra-wideband (UWB) leaky lens antenna.
Llombart, N., Neto, A., Siegel, P. H.
core   +1 more source

Photoswitching of the Two‐Photon Absorption of Donor‐Acceptor Substituted Dithienylethenes

ChemistryEurope
In this work the structural and electronic integration of push–pull systems with photoactivatable dithienylethenes (DTEs) is demonstrated. The light‐induced 6π‐electrocyclization of two asymmetrically substituted DTEs is used to conjugate an electron ...
Francisco G. Blandón‐Cumbreras, Marc Villabona, Julia Osmólska, Elizaveta F. Petrusevich, David B. Guzmán Ríos, Robert Zaleśny, Joanna Olesiak‐Bańska, Jordi Hernando, Uwe Pischel   +8 more
doaj   +1 more source

A New Twist in the Photophysics of the GFP Chromophore: A Volume-Conserving Molecular Torsion Couple [PDF]

, 2018
The simple structure of the chromophore of the green fluorescent protein (GFP), a phenol and an imidazolone ring linked by a methyne bridge, supports an exceptionally diverse range of excited state phenomena.
Addison, Ando, Andresen, Aquilante, Baffour-Awuah, Bagchi, Baranov, Blancafort, Bochenkova, Briand, Bulina, Celani, Cembran, Chatterjee, Chattoraj, Conti, Conyard, Dedecker, Dong, Dong, Dong, Ericsson, García-Iriepa, Hayashi, Heisler, Hosoi, Hsu, Hynes, Irie, Jenkins, Johnson, Kistemaker, Kogure, Kudernac, Lavoie-Cardinal, Li, Li, Mandal, Mandal, Martin, Matz, McConnell, Meech, Miyawaki, Mizuno, Mooney, Mori, Nienhaus, Olsen, Olsen, Ong, Paolino, Park, Poloni, Polyakov, Polyakov, Quenneville, Seward, Sharafy, Sinicropi, Stoner-Ma, Takeuchi, Tay, Tolbert, Toniolo, Tsien, Van der Horst, van der Meer, van Dijken, Vendrell, Voliani, Walker, Wand, Webber, Webber, Weber, Wu   +76 more
core   +2 more sources

Reversible Fluorescence Photoswitching in DNA [PDF]

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

Synthesis of Dithienylcycloalkene Molecular Switches Enabled by a Bench‐Stable Ti‐Complex

Chemistry – A European Journal, EarlyView.
Herein we report a set of cycloalkene‐bridged DTEs with ring sizes ranging from 4‐ to 7‐membered rings. The synthesis of these analogs was performed via a key McMurry coupling step, which was enabled by a practical, bench‐stable Ti(IV)‐complex. Remarkably, it is shown that the strained cyclobutene bridge outperforms other rings, even the most commonly ...
Marcell M. Bogner, Márton Hegedűs, Péter P. Kalapos, Attila Kunfi, Gábor London   +4 more
wiley   +1 more source