Results 41 to 50 of about 170,894 (344)

The Antitumor Effect of Singlet Oxygen [PDF]

Anticancer Research, 2016
Tumor cells are protected against intercellular apoptosis-inducing signaling through expression of membrane-associated catalase and superoxide dismutase. Exogenous singlet oxygen derived from activated photosensitizers or from cold atmospheric plasma causes local inactivation of protective catalase which is followed by the generation of secondary ...
openaire   +3 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Atmospheric air-phase singlet oxygen generator for practical multifunctional applications

Научно-технический вестник информационных технологий, механики и оптики
Singlet oxygen is a metastable reactive oxygen species involved in numerous biochemical reactions and physiological processes. This suggests its potential applicability in addressing practical challenges in medicine and human safety. Due to its oxidative
L. L. Khomutinnikova, E. P. Bykov, S. A. Plyastsov, S. K. Evstropiev, I. K. Meshkovskii, S. G. Zhuravskii, V. N. Baushev   +6 more
doaj   +1 more source

Characterization of singlet oxygen-accumulating mutants isolated in a screen for altered oxidative stress response in Chlamydomonas reinhardtii

BMC Plant Biology, 2010
Background When photosynthetic organisms are exposed to harsh environmental conditions such as high light intensities or cold stress, the production of reactive oxygen species like singlet oxygen is stimulated in the chloroplast.
Eggen Rik IL, Fischer Beat B, Niyogi Krishna K   +2 more
doaj   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Penggunaan Larutan Ekstrak Etanol Dari Temulawak Sebagai Fotosensitizer Di Dalam Pemutihan (Pengelantangan) Pulp Dengan Penyinaran Lampu [PDF]

, 2013
Etanol extract from temulawak can used as fotosensitizer in pulp bleaching with lamp irradiating, which is in this pulp bleaching obtained singlet oxygen.
Perdana, A. (Arif)
core  

NanoSOSG: A Nanostructured Fluorescent Probe for the Detection of Intracellular Singlet Oxygen [PDF]

, 2017
A biocompatible fluorescent nanoprobe for singlet oxygen (1O2) detection in biological systems was designed, synthesized, and characterized, that circumvents many of the limitations of the molecular probe Singlet Oxygen Sensor Green® (SOSG).
Agut, Montserrat, Boyle, Ross W., Bresolí-Obach, Roger, Giuntini, Francesca, Gulías, Òscar, Gulías, Òscar, Nonell, Santi, Ruiz-González, Rubén, Ruiz-González, Rubén, Savoie, Huguette   +9 more
core   +4 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Evidence for the Formation of Ozone (or Ozone-Like Oxidants) by the Reaction of Singlet Oxygen with Amino Acids

Journal of Chemistry, 2018
Antibodies or some amino acids, namely, cysteine, methionine, histidine, and tryptophan, were previously reported to catalyse the conversion of singlet oxygen (1O2) to ozone (O3).
George W. Wanjala, Arnold N. Onyango, David Abuga, Calvin Onyango, Moses Makayoto   +4 more
doaj   +1 more source

Endogenous Singlet Oxygen Photosensitizers in Plants. [PDF]

, 2016
Singlet oxygen, a highly reactive oxygen species, is inherently produced in chloroplasts of plants. Chlorophylls are used by plants to harvest light and to transport the singlet electronic excitation from the antenna complexes to the reaction centre (RC)
Arellano, Juan B., Naqvi, K. Razi
core