Results 31 to 40 of about 474 (165)

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.
Cordes, Thorben   +6 more
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

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

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

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.
Baby, Andre Rolim   +7 more
core  

Pharmaceutical Compounds as Photostabilizers

open access: yesJournal of Al-Nahrain University-Science, 2016
n this paper, some pharmaceutical compounds were used and their impact on the photostability of polymer poly (vinyl chloride) (PVC) was study. The PVC films containing a variant concentration of compounds 0.25, 0.5, 1% by weight were produced by casting method from tetrahydrofuran (THF) solvent. The photostabilization activities of these compounds were
Esraa Ismael Al-khateb   +2 more
openaire   +2 more sources

Photostabilization of polyvinyl chloride by some new thiadiazole derivatives [PDF]

open access: yes, 2015
(5-Amino-1,3,4-thiadiazole-2-yl)phenol and it derivatives have been synthesized and characterized by spectral methods lik (FT-IR, UV-Vis, and 1H NMR) and elemental analysis beside the measurements of their physical properties.
Ajay   +21 more
core   +1 more source

Single-molecule fret study on structural dynamics of membrane proteins [PDF]

open access: yes, 2020
De Na+ -gekoppelde betaïne symporter BetP van de bacterie Corynebacterium glutamicum gaat hyperosmotische stress tegen en wordt gereguleerd via een osmodetecterend C-terminaal domein.
Aminian Jazi, Atieh
core   +1 more source

Photodegradation and photostabilization of polymers, especially polystyrene: review [PDF]

open access: yesSpringerPlus, 2013
Exposure to ultraviolet (UV) radiation may cause the significant degradation of many materials. UV radiation causes photooxidative degradation which results in breaking of the polymer chains, produces free radical and reduces the molecular weight, causing deterioration of mechanical properties and leading to useless materials, after an unpredictable ...
Yousif, Emad, Haddad, Raghad
openaire   +2 more sources

Development and characterization of photoprotective formulations containing keratin particles [PDF]

open access: yes, 2019
This work deals with development and evaluation of MFQ protective formulation, which contains two organic filters, namely: octyl-p-methoxycinnamate (OMC) and benzophenone-3 (BP-3); a photostabilizing agent called ethylhexylmethoxycrylene (EHMCR) and ...
Freitas, Zaida Maria Farias de   +5 more
core   +3 more sources

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