Results 31 to 40 of about 1,621 (191)

Synthesis, characterization and photostability study of triazole derivatives

open access: yes, 2021
heterocyclic derivative contain triazole ring was synthesized and characterized the product and their structures by infrared spectroscopy, 1H-NMR, 13C-NMR and instrumental techniques.
Ahmed Ahmed, Shahad Muhammad
core   +1 more source

Rutina como fotoestabilizadora de protetores solares de amplo espectro / Rutin as photostabilizer for broad spectrum sunscreens [PDF]

open access: yes, 2021
The combination of butyl methoxydibenzoylmethane (BMBM) and octyl methoxycinnamate (EHMC) is widely used in pharmaceutical formulations but may exhibit alteration in spectral absorption following exposure to UV radiation.
Costa, Gabriela Maria D'Angelo   +7 more
core  

Intramolecular photostabilization via triplet-state quenching: design principles to make organic fluorophores "self-healing" [PDF]

open access: yes, 2015
Covalent linkage of fluorophores and photostabilizers was recently revived as a strategy to make organic fluorophores "self-healing" via triplet-state quenching.
Herrmann, A.   +15 more
core   +1 more source

Diamine Derivatives as Photostabilizers for Thermoplasticized Poly(Vinyl Chloride) [I]

open access: yesمجلة بغداد للعلوم, 2018
The photostabilization? of poly vinyl chloride (PVC) ? films has been investigated by using diamine derivatives. The? (PVC) films were? contained 0.5% weight? of diamine derivatives which prepared by the method of casting. The photostabilizations?
Baghdad Science Journal
doaj   +1 more source

Synthesis of heterocyclic ring (1,2,4-triazole) as polystyrene photo stabilizer

open access: yes, 2021
New heterocyclic compounds contain triazole ring (play very important role in photostabilization as UV absorber) synthesized by reaction between the di Schiff base (compound 3) with aromatic alkyl halide (Benzyl bromide) and shows there activity as ...
Ahmed Ahmed, Shahad Muhammad
core   +1 more source

Labeling proteins inside living cells using external fluorophores for microscopy

open access: yeseLife, 2016
Site-specific fluorescent labeling of proteins inside live mammalian cells has been achieved by employing Streptolysin O, a bacterial toxin which forms temporary pores in the membrane and allows delivery of virtually any fluorescent probes, ranging from ...
Kai Wen Teng   +8 more
doaj   +1 more source

Synthesis and Identification of Heterocyclic Compounds (Oxazepine, Tetrazole) Derived from Benzidine as Photostabilizing for Poly vinyl chloride

open access: yesAl-Mustansiriyah Journal of Science, 2018
This research describes preparation of new four compounds (A2-A5) having 1,3-oxazepine and Tetrazole rings. The first step involves reaction of benzidine (A1) with aromatic aldehyde (cinnamaldehyde) in ethanol as a solvent in the presence of acid as ...
Olfat A. Nief
doaj   +1 more source

Morphology and Performance of PolyVinyl Chloride Thin Films Doped with Polyorganosilanes against Photodegradation

open access: yesSilicon, 2023
The importance of polymeric additives has taken an important role in industrial technology and its development and the increase in the consumption period of industrial products, especially plastic products.
Safaa H. Mohamed   +7 more
semanticscholar   +1 more source

Advances in organic UV filters for sunscreens over the past decade

open access: yesPhotochemistry and Photobiology, EarlyView.
Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon   +4 more
wiley   +1 more source

On‐Target Photoassembly of Pyronin Dyes for Super‐Resolution Microscopy

open access: yesAngewandte Chemie, Volume 137, Issue 44, October 27, 2025.
We report a new class of diaryl ether and diaryl silane compounds bearing hydrazone substituents that, upon irradiation, cyclize to a fluorescent (silicon−)pyronin dye. After optimizing their photophysical properties, we introduced reactive tags into their structure for biological labeling, and demonstrated their utility in STED, PALM, and MINFLUX ...
Gergely Knorr   +2 more
wiley   +2 more sources

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