Results 61 to 70 of about 75,034 (299)

Surface and Catalyst Driven Singlet Oxygen Formation in Li-O2 Cells

, 2020
Large overpotentials upon discharge and charge of Li-O2 cells have motivated extensive research into heterogeneous solid electrocatalysts or non-carbon electrodes with the aim to improve rate capability, round-trip efficiency and cycle life.
Jürgen, Kahr, Aleksej, Samojlov, David, Schuster, Stefan, Freunberger   +3 more
core   +1 more source

Steering Oxygen Activation Pathways via Redox Dual‐Defects in 2D Hydrated WO3 for High‐Yield Singlet Oxygen Evolution

Advanced Functional Materials, EarlyView.
Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo, Mingqi Xiao, Fangyuan Zhang, Hui Li, Yuli Jia, Zhenfang Zhang, Liqun Ye, Bo Yang, Tianyi Ma   +8 more
wiley   +1 more source

Imaging the production of singlet oxygen in vivo using a new fluorescent sensor, Singlet Oxygen Sensor

, 2006
Singlet oxygen is known to be produced by cells in response to photo-oxidative stresses and wounding. Due to singlet oxygen being highly reactive, it is thought to have a very short half-life in biological systems and, consequently, it is difficult to ...
Jen Waring, Michael T. Wilson, Michael J. Fryer, Philip M. Mullineaux, Mullineaux, P.M., Bechtold, U., Ulrike Bechtold, Nonell, S., On Reeder, Flors, C., Baker, N.R., Wilson, M.T., Cristina Flors, Neil R. Baker, Fryer, M.J., Santi Nonell, Waring, J., Reeder, B.   +17 more
core   +2 more sources

Enrolling reactive oxygen species in photon-to-chemical energy conversion: fundamentals, technological advances, and applications

Advances in Physics: X, 2021
In theory, oxygen (O2) is an ideal chemical reagent because of its high relative abundance and negligible environmental toxicity. In practice however, by the nature of its ground state electronic configuration, many chemical reactions involving O2 are ...
Irving D. Rettig, Theresa M. McCormick
doaj   +1 more source

Supramolecular Control of Singlet Oxygen Generation

Molecules, 2021
Singlet oxygen (1O2) is the excited state electronic isomer and a reactive form of molecular oxygen, which is most efficiently produced through the photosensitized excitation of ambient triplet oxygen.
Akshay Kashyap, Elamparuthi Ramasamy, Vijayakumar Ramalingam, Mahesh Pattabiraman   +3 more
doaj   +1 more source

Affinity‐Tuned Albumin Hitchhiking Extends the Bioorthogonal Capture Window in Pretargeting Radiotheranostics

Advanced Healthcare Materials, EarlyView.
Pharmacokinetic engineering of clickable radioligands was achieved via albumin hitchhiking approach within a pretargeted radiotheranostics delivery platform. This approach reduced rapid renal elimination, expanded bioorthogonal capture window, boosted tumor uptake by ∼3.5‐fold, and improved the tumor‐to‐liver ratio by ∼6‐fold.
Xie He, Nicholas L. Fletcher, Gayathri R. Ediriweera, Yifei Zhu, James Humphries, Christopher B. Howard, Jiazheng Wang, Craig A. Bell, Kristian Kempe, Kristofer J. Thurecht   +9 more
wiley   +1 more source

Subcellular Singlet Oxygen and Cell Death: Location Matters

Frontiers in Chemistry, 2020
We developed a tool for targeted generation of singlet oxygen using light activation of a genetically encoded fluorogen-activating protein complexed with a unique dye molecule that becomes a potent photosensitizer upon interaction with the protein.
Pingping Liang, Pingping Liang, Pingping Liang, Dmytro Kolodieznyi, Dmytro Kolodieznyi, Yehuda Creeger, Byron Ballou, Marcel P. Bruchez, Marcel P. Bruchez, Marcel P. Bruchez   +9 more
doaj   +1 more source

Singlet Oxygen Photosensitizing Materials for Point-of-Use Water Disinfection with Solar Reactors

, 2018
Singlet molecular oxygen (1O2) is a potent electrophile and a strong oxidizing agent and can be easily generated by photosensitization via illumination of appropriate dyes with visible light.
David García-Fresnadillo, García Fresnadillo, David   +1 more
core   +1 more source

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

Preliminary study of a centrifugal-flow singlet oxygen generator

, 2008
By using the concept of a high-pressure, gravity-independent singlet oxygen generator (SOG) proposed by Emanuel and based on the principle that a rotating fluid is capable of producing an enormous centrifugal force, a novel-type centrifugal-flow singlet ...
Zhang, Cunhao, Sha, Guohe, Yang, Heping, Shi, Wenbo, Deng, Liezheng, 沙国河   +5 more
core   +1 more source