All‐Optical Switching Based on Sub‐Bandgap Photoactivation of Charge Trapping in Metal Halide Perovskites
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202209851
Abstract: Controllable optical properties are crucial for the application of light‐emitting materials in optical devices. In this work, controllable photoluminescence in metal halide perovskite crystals is realized via photoactivation of their defects. It is found that… read more here.
Keywords: metal halide; photoactivation; optical switching; sub bandgap ... See more keywords
Intracellular Protein Photoactivation Using Sterically Bulky Caging
Sign Up to like & getrecommendations! Published in 2022 at "ChemBioChem"
DOI: 10.1002/cbic.202200476
Abstract: Methods for intracellular protein photoactivation have been studied to elucidate the spatial and temporal roles of proteins of interest. In this study, an intracellular protein photoactivation method was developed using sterically bulky caging. The protein… read more here.
Keywords: using sterically; photoactivation; intracellular protein; protein photoactivation ... See more keywords
Lack of effect of selected sunscreens applied on ex vivo human skin for 5-methyl-aminolevulinic acid penetration and protoporphyrin IX photoactivation.
Sign Up to like & getrecommendations! Published in 2017 at "Photodiagnosis and photodynamic therapy"
DOI: 10.1016/j.pdpdt.2016.11.012
Abstract: BACKGROUND Photodynamic therapy (PDT) is a successful treatment for non-melanoma skin cancers. Methyl-aminolevulinate (MAL) is metabolized to protoporphyrin IX (PpIX) which accumulates in the skin lesion and which generates a painful photochemical toxic reaction upon… read more here.
Keywords: penetration; skin; human skin; ppix ... See more keywords
Optical Fiber-Enabled Photoactivation of Peptides and Proteins.
Sign Up to like & getrecommendations! Published in 2020 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.0c02087
Abstract: Photoactivation and photodissociation have long proven useful tools in tandem mass spectrometry, but implementation often involves cumbersome and potentially dangerous configurations. Here we redress this problem by using a fiber optic cable to couple an… read more here.
Keywords: photoactivation peptides; fiber enabled; fiber; photoactivation ... See more keywords
Strong Influence of Ancillary Ligands Containing Benzothiazole or Benzimidazole Rings on Cytotoxicity and Photoactivation of Ru(II) Arene Complexes.
Sign Up to like & getrecommendations! Published in 2018 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.8b02299
Abstract: A new family of neutral ruthenium(II) arene complexes of the type [Ru(η6-arene)X(κ2- O, N-L)] (η6-arene = p-cym, bz; X = Cl-, SCN-; HL1 = 2-(2'-hydroxyphenyl)benzimidazole, HL2 = 2-(2'-hydroxyphenyl)benzothiazole) has been synthesized and characterized. The cytotoxic… read more here.
Keywords: irradiation; strong influence; arene; photoactivation ... See more keywords
Fluorosulfonylvinylation of Unactivated C(sp3)-H via Electron Donor-Acceptor Photoactivation.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00950
Abstract: An electron donor-acceptor (EDA) complex photoactivation strategy for radical fluorosulfonylation is disclosed for the first time. Simply upon blue light irradiation, the FSO2 radical can be generated efficiently under catalyst-free, base-free, and additive-free conditions, which… read more here.
Keywords: electron donor; donor acceptor; photoactivation;
Decoupling the Conflicting Roles of Photoactivation and Boosting Chemiresistor Response by Pulsed UV Light Modulation.
Sign Up to like & getrecommendations! Published in 2023 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.3c04753
Abstract: UV photoactivation has been widely employed to trigger the response of semiconductor chemiresistors at room temperature (RT). Generally, continuous UV (CU) irradiation is applied, and an apparent maximal response could be obtained via optimizing UV… read more here.
Keywords: light modulation; photoactivation; pulsed light; response ... See more keywords
Unraveling the Photoactivation Mechanism of a Light-Activated Adenylyl Cyclase Using Ultrafast Spectroscopy Coupled with Unnatural Amino Acid Mutagenesis
Sign Up to like & getrecommendations! Published in 2022 at "ACS Chemical Biology"
DOI: 10.1021/acschembio.2c00575
Abstract: The hydrogen bonding network that surrounds the flavin in blue light using flavin adenine dinucleotide (BLUF) photoreceptors plays a crucial role in sensing and communicating the changes in the electronic structure of the flavin to… read more here.
Keywords: spectroscopy; photoactivation; adenylyl cyclase; unnatural amino ... See more keywords
Photoactivation of Boronic Acid Prodrugs via a Phenyl Radical Mechanism: Iridium(III) Anticancer Complex as an Example.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.3c00254
Abstract: Boronic acid (or ester) is a well-known temporary masking group for developing anticancer prodrugs responsive to tumoral reactive oxygen species (ROS), but their clinic application is largely hampered by the low activation efficiency. Herein, we… read more here.
Keywords: phenyl radical; iridium iii; photoactivation; boronic acid ... See more keywords
Ultraviolet Photoactivation Using Synchrotron Radiation for Tandem Mass Spectrometry of Polysiloxanes.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of the American Society for Mass Spectrometry"
DOI: 10.1021/jasms.0c00392
Abstract: Gas-phase decompositions of polymer ions play an important role in mass spectrometry to obtain accurate structural information. In this work, UV photoactivation experiments were performed from two poly(dimethylsiloxane)s bearing different end groups (two trimethylsilyl, or… read more here.
Keywords: photon; mass spectrometry; mass; photoactivation ... See more keywords
FRET-assisted photoactivation of flavoproteins for in vivo two-photon optogenetics
Sign Up to like & getrecommendations! Published in 2019 at "Nature Methods"
DOI: 10.1038/s41592-019-0541-5
Abstract: Optical dimerizers have been developed to untangle signaling pathways, but they are of limited use in vivo, partly due to their inefficient activation under two-photon (2P) excitation. To overcome this problem, we developed Förster resonance… read more here.
Keywords: two photon; fret assisted; assisted photoactivation; photoactivation ... See more keywords