Results 21 to 30 of about 9,324 (271)

Photoswitchable Peptides as Molecular Tools to Encode Structural Order and Disorder in Intracellular Assemblies. [PDF]

open access: yesAngew Chem Int Ed Engl
We present a photoswitchable peptide conjugate which exhibits isomerism‐dependent self‐assembly: the planar trans‐isomer assembles into well‐ordered nanofibers while the non‐planar cis‐isomer yields disordered aggregates. Our study offers a direct visualization on the effects of structure formation inside living cells.
Link J   +6 more
europepmc   +2 more sources

Optical Control of Translation with a Puromycin-Photoswitch

open access: yesbioRxiv, 2022
Translation is an elementary cellular process that involves a large number of factors interacting in a concerted fashion with the ribosome. Numerous natural products have emerged that interfere with ribosomal function, such as puromycin, which mimics an ...
T. Ko   +5 more
semanticscholar   +1 more source

Photomodulation Approaches to Overcome Antimicrobial Resistance

open access: yesPharmaceuticals, 2023
Photopharmacology is an approach that aims to be an alternative to classical chemotherapy. Herein, the different classes of photoswitches and photocleavage compounds and their biological applications are described. Proteolysis targeting chimeras (PROTACs)
Sofia N. Sarabando   +4 more
doaj   +1 more source

Ultrafast generation and decay of a surface metal [PDF]

open access: yes, 2021
Band bending at semiconductor surfaces induced by chemical doping or electric fields can create metallic surfaces with properties not found in the bulk, such as high electron mobility, magnetism or superconductivity.
Gierster, Lukas   +2 more
core   +2 more sources

Photoswitchable mixed valence [PDF]

open access: yesChemical Society Reviews, 2012
For a molecular electronics technology to be fully serviceable, switching functions will be indispensable. Specifically, it will be desirable to control the conductivity of a given molecule using an external stimulus. This tutorial review discusses photoswitchable mixed valence systems that are comprised of a reversibly photoisomerizable bridging unit ...
openaire   +5 more sources

Synthesis of 4-substituted azopyridine-functionalized Ni(II)-porphyrins as molecular spin switches

open access: yesBeilstein Journal of Organic Chemistry, 2020
We present the synthesis and the spin switching efficiencies of Ni(II)-porphyrins substituted with azopyridines as covalently attached photoswitchable ligands. The molecules are designed in such a way that the azopyridines coordinate to the Ni ion if the
Jannis Ludwig   +3 more
doaj   +1 more source

Recent Synthetic Biology Approaches for Temperature- and Light-Controlled Gene Expression in Bacterial Hosts

open access: yesMolecules, 2022
The expression of genes of interest (GOI) can be initiated by providing external stimuli such as temperature shifts and light irradiation. The application of thermal or light stimuli triggers structural changes in stimuli-sensitive biomolecules within ...
Jongdoo Choi   +3 more
doaj   +1 more source

Spiropyran-based reversible, light-modulated sensing with reduced photofatigue [PDF]

open access: yes, 2009
Switchable materials have tremendous potential for application in sensor development that could be applied to many fields. We are focusing on emerging area of wireless sensor networks due to the potential impact of this concept in society.
Aleksandar Radu   +45 more
core   +1 more source

Phenylimino Indolinone: A Green‐Light‐Responsive T‐Type Photoswitch Exhibiting Negative Photochromism

open access: yesAngewandte Chemie, 2021
Imines are photoaddressable motifs useful in the development of new generations of molecular switches, but their operation with low‐energy photons and control over isomer stability remain challenging.
Stefano Crespi   +11 more
semanticscholar   +1 more source

Short Photoswitchable Antibacterial Peptides

open access: yesChemMedChem, 2020
AbstractThree photoswitchable tetrapeptides, based on a known synthetic antibacterial, were designed and synthesized to determine activity against Staphylococcus aureus. Each peptide contains an azobenzene photoswitch incorporated into either the N‐terminal side chain (1), C‐terminal side chain (2), or the C‐terminus (3) to allow reversible switching ...
Yuan Qi Yeoh   +5 more
openaire   +5 more sources

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