Results 21 to 30 of about 6,232 (230)

A novel BCS code in F-OFDM system: a promising candidate for 5G wireless communication systems [PDF]

open access: yes, 2021
Due to the rapid growth in wireless communication systems, Long Term Evolution (LTE), mainly based on Orthogonal Frequency Division Multiplexing (OFDM), no longer meets wireless communication systems request and higher data rate requirements. Thus,
Hussain, Ghasan Ali
core  

Azotriptycenes: Photoswitchable Molecular Brakes

open access: yesChemistry – A European Journal, 2023
AbstractThe control of molecular motions is a central topic of molecular machine research. Molecular brakes are fundamental building blocks towards such goal as they allow deliberately decelerating specific motions after an outside stimulus is applied. Here we present azotriptycenes as structural framework for light‐controlled molecular brakes.
Stockerl, Willibald J.   +7 more
openaire   +3 more sources

Design, Synthesis and Inhibitory Activity of Photoswitchable RET Kinase Inhibitors. [PDF]

open access: yes, 2015
REarranged during Transfection (RET) is a transmembrane receptor tyrosine kinase required for normal development and maintenance of neurons of the central and peripheral nervous systems.
Andréasson, Joakim   +4 more
core   +1 more source

Regulation of mRNA translation by a photoriboswitch. [PDF]

open access: yes, 2020
Optogenetic tools have revolutionized the study of receptor-mediated processes, but such tools are lacking for RNA-controlled systems. In particular, light-activated regulatory RNAs are needed for spatiotemporal control of gene expression.
Abdelsayed, Michael M   +7 more
core   +1 more source

Dihydroazulene‐Azobenzene‐Dihydroazulene Triad Photoswitches [PDF]

open access: yesChemistry – A European Journal, 2021
AbstractPhotoswitch triads comprising two dihydroazulene (DHA) units in conjugation with a central trans‐azobenzene (AZB) unit were prepared in stepwise protocols starting from meta‐ and para‐disubstituted azobenzenes. The para‐connected triad had significantly altered optical properties and lacked the photoactivity of the separate photochromes.
Alvis Mengots   +9 more
openaire   +6 more sources

E/Z Molecular Photoswitches Activated by Two-Photon Absorption: Comparison between Different Families

open access: yesMolecules, 2021
Nonlinear optical techniques as two-photon absorption (TPA) have raised relevant interest within the last years due to the capability to excite chromophores with photons of wavelength equal to only half of the corresponding one-photon absorption energy ...
Marco Marazzi   +5 more
doaj   +1 more source

Azogabazine; a photochromic antagonist of the GABAA receptor [PDF]

open access: yes, 2016
The design and synthesis of azogabazine is described, which represents a highly potent (IC50 = 23 nM) photoswitchable antagonist of the GABAA receptor.
Baker, JR   +4 more
core   +1 more source

Orthogonal photoswitching in a multifunctional molecular system

open access: yesNature Communications, 2016
While molecular photoswitches have proven useful in many fields, selective and reversible control over multiple switches is an unsolved challenge. Here, the authors report on a system consisting of two classes of photoswitches that can be addressed ...
Michael M. Lerch   +4 more
doaj   +1 more source

Robust photoregulation of GABA(A) receptors by allosteric modulation with a propofol analogue. [PDF]

open access: yes, 2012
Photochemical switches represent a powerful method for improving pharmacological therapies and controlling cellular physiology. Here we report the photoregulation of GABA(A) receptors (GABA(A)Rs) by a derivative of propofol (2,6-diisopropylphenol), a ...
Bruzik, Karol S   +8 more
core   +2 more sources

Rationally designed azobenzene photoswitches for efficient two-photon neuronal excitation

open access: yesNature Communications, 2019
Two-photon absorption capacity of azobenzene photoswitches usually comes with a reduction in thermal stability. Here, the authors developed photoswitches with high two-photon sensitivity and enhanced cis isomer thermal lifetime for the control of ...
Gisela Cabré   +13 more
doaj   +1 more source

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