Results 51 to 60 of about 75,034 (299)

Significance of Singlet Oxygen Molecule in Pathologies

open access: yes, 2023
Reactive oxygen species, including singlet oxygen, play an important role in the onset and progression of disease, as well as in aging. Singlet oxygen can be formed non-enzymatically by chemical, photochemical, and electron transfer reactions, or as a ...
Aya Umeno   +4 more
core   +1 more source

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

open access: yesAdvanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade   +7 more
wiley   +1 more source

Janus electrocatalytic flow-through membrane enables highly selective singlet oxygen production

open access: yesNature Communications, 2020
Electrocatalytic processes are promising for automated and scalable synthesis of singlet oxygen, but they are energy- and chemical-intensive. Here the authors present a Janus electrocatalytic membrane that selectively produces singlet oxygen with low ...
Yumeng Zhao   +8 more
doaj   +1 more source

Quantum effects in photosensitization: The case of singlet oxygen generation by thiothymines

open access: yes, 2022
Photosensitization is the indirect electronic excitation of a molecule with the aid of a photosensitizer and is a bimolecular nonradiative energy transfer.
Meghna, Manae, Anirban, Hazra
core   +1 more source

Engineering Pendant Group Chemistry to Control Hydrophilicity and Oxidative Degradation of Thioketal‐Based Biomaterials

open access: yesAdvanced Functional Materials, EarlyView.
Thioketal (TK) polymers are promising biomaterials due to their selective biodegradation by reactive oxygen species (ROS), but they respond slowly to physiologic doses of ROS. Here, the TK bond's pendant groups are modified to enhance the degradation of TK‐based implants both in vitro and in vivo.
Karina A. Bruce   +6 more
wiley   +1 more source

Experimental and theoretical study of centrifugal flow singlet oxygen generator

open access: yes, 2008
We designed and realized a novel centrifugal flow Singlet oxygen generator (CFSOG) that was originally proposed by Emanuel [Proc. SPIE 5448 (2004) 233].
Zhang, Cunhao   +5 more
core   +1 more source

Mechanoluminescent HOF Nanotransducers Enabled Sono‐Optogenetics in Parkinsonian Rats

open access: yesAdvanced Functional Materials, EarlyView.
We present a mechanoluminescent system utilizing porous hydrogen‐bonded organic frameworks (HOFs) as a toolkit for focused ultrasound‐triggered, non‐invasive light delivery to the deep brain in rats. This approach enables the specific activation of PV‐GPe neurons in dopamine‐depleted Parkinson's disease rat models, resulting in a comparable alleviation
Wenliang Wang   +18 more
wiley   +1 more source

Extraction, Identification and Photo-Physical Characterization of Persimmon (Diospyros kaki L.) Carotenoids

open access: yesFoods, 2017
Carotenoid pigments were extracted and purified from persimmon fruits using accelerated solvent extraction (ASE). Eleven pigments were isolated and five of them were clearly identified as all-trans-violaxanthine, all-trans-lutein, all-trans-zeaxanthin ...
Khalil Zaghdoudi   +6 more
doaj   +1 more source

Parallel fluorescence and phosphorescence monitoring of singlet oxygen photosensitization in rats [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2015
The time- and spectral-resolved set-up for measurements of weak infrared luminescence of photosensitizers (PSs) and singlet oxygen using optical lightguides was used on skin of laboratory animals in vivo.
Roman Dědic   +5 more
doaj   +1 more source

The photophysics and photochemistry of aromatic 1,3-dicarbonyl compounds used as UVA sunscreens [PDF]

open access: yes, 1999
UV radiation can cause harmful effects to human skin, including premature skin ageing and skin cancer. Historically, sunscreens were developed to filter out UVB (290 nm-320 nm), but now the importance of UVA (320 nm-400 nm) sunscreens is realised.
Coultous, Catherine Jane
core  

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