Photochemical & Photobiological Sciences
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Effect of mTHPC-mediated photodynamic therapy on 5-fluorouracil resistant human colorectal cancer cells
Photochemical & Photobiological Sciences - Tập 16 - Trang 1063-1070 - 2020
The primary or acquired cancer chemoresistance is a major problem in the treatment of cancer patients. It could be overcome by non-overlapping treatment regimens such as photodynamic therapy (PDT). PDT is based on the oxidation of cellular components which occurs when a light-excited photosensitizer generates reactive oxygen species (ROS). In this study the effect of mTHPC mediated PDT (mTHPC-PDT)...... hiện toàn bộ
Time-resolved methods in biophysics. 4. Broadband pump—probe spectroscopy system with sub-20 fs temporal resolution for the study of energy transfer processes in photosynthesis
Photochemical & Photobiological Sciences - Tập 6 - Trang 135-144 - 2007
In this paper we discuss how to push the temporal resolution limits of transient absorption spectroscopy in order to detect very fast processes (energy relaxation, energy or charge transfer, vibrational coherence) taking place in molecules of biological relevance. After reviewing the main principles of femtosecond pump–probe spectroscopy, we describe an experimental setup based on two synchronized...... hiện toàn bộ
Photocatalysis and self-catalyzed photobleaching with covalently-linked chromophore-quencher conjugates built around BOPHY
Photochemical & Photobiological Sciences - Tập 17 - Trang 750-762 - 2020
Two Chromophore-Quencher Conjugates (CQCs) have been synthesized by covalent attachment of the anti-oxidant dibutylated-hydroxytoluene (BHT) to a pyrrole-BF2 chromophore (BOPHY) in an effort to protect the latter against photofading. In fluid solution, light-induced intramolecular charge transfer is favoured in polar solvents and helps to inhibit photo-bleaching of the chromophore. The rate of pho...... hiện toàn bộ
Health benefits of solar UV-B radiation through the production of vitamin D
Photochemical & Photobiological Sciences - Tập 2 - Trang 1307-1310 - 2003
Structural evolution of luciferase activity in Zophobas mealworm AMP/CoA-ligase (protoluciferase) through site-directed mutagenesis of the luciferin binding site
Photochemical & Photobiological Sciences - Tập 10 - Trang 1226-1232 - 2020
The structural origin and evolution of bioluminescent activity of beetle luciferases from AMP/CoA ligases remains a mystery. Previously we cloned the luciferase-like enzyme from Zophobas morio mealworm, a reasonable protoluciferase model that could shine light on this mystery. Kinetic characterization and studies with D- and L-luciferin and their adenylates showed that stereoselectivity constitute...... hiện toàn bộ
Novel ruthenium(II) and iridium(III) BODIPY dyes: insights into their application in photodynamic therapy in vitro
Photochemical & Photobiological Sciences - Tập 18 - Trang 2012-2022 - 2020
Organic–metal complexes are promising molecules for use in photodynamic therapy (PDT). The aim of this study was to investigate in vitro effects of novel Ru(II) and Ir(III) BODIPY complexes for PDT. These hybrid organic–metal molecules (Ru-BD and Ir-BD) have been synthesized via reactions of a BODIPY precursor (BD) with a phenanthroline unit bearing Ru(II) (3) and novel Ir(III) (4) compounds. The ...... hiện toàn bộ
Correction: Patients with polymorphic light eruption have decreased serum levels of 25-hydroxyvitamin-D(3) that increase upon 311 nm UVB photohardening
Photochemical & Photobiological Sciences - - 2016
Correction for ‘Patients with polymorphic light eruption have decreased serum levels of 25-hydroxyvitamin-D(3) that increase upon 311 nm UVB photohardening’ by Peter Wolf et al., Photochem. Photobiol. Sci., 2012, 11, 1831–1836.
Effects of a low-level semiconductor gallium arsenide laser on local pathological alterations induced by Bothrops moojeni snake venom
Photochemical & Photobiological Sciences - Tập 12 - Trang 1895-1902 - 2013
Antivenom therapy has been ineffective in neutralizing the tissue damage caused by snakebites. Among therapeutic strategies to minimize effects after envenoming, it was hypothesized that a low level laser would reduce complications and reduce the severity of local snake venom effects. In the current study, the effect of a low-level semiconductor gallium arsenide (GaAs) laser on the local pathologi...... hiện toàn bộ
Correction to: Diagnosis of malignant melanoma and basal cell carcinoma by in vivo NIR-FT Raman spectroscopy is independent of skin pigmentation
Photochemical & Photobiological Sciences - Tập 13 - Trang 1359-1359 - 2014
A novel and sensitive chemosensor based on a KMnO4–rhodamine B–CdS quantum dot chemiluminescence system for meropenem detection
Photochemical & Photobiological Sciences - Tập 16 - Trang 170-177 - 2020
A sensitive and simple flow injection chemiluminescence (CL) system was constructed for the determination of meropenem, in which the CL intensity of the KMnO4-rhodamine B (Rh B) reaction was enhanced in the presence of CdS quantum dots (QDs). A CL resonance energy transfer (CRET) occurs between CdS QDs as a donor and Rh B as an energy acceptor. Based on the strong specific quenching effect of mero...... hiện toàn bộ
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