Results 61 to 70 of about 7,273,771 (379)

Reversible low-light induced photoswitching of crowned spiropyran-DO3A complexed with gadolinium(III) ions. [PDF]

, 2012
Photoswitchable spiropyran has been conjugated to the crowned ring system DO3A, which improves its solubility in dipolar and polar media and stabilizes the merocyanine isomer. Adding the lanthanide ion gadolinium(III) to the macrocyclic ring system leads
Brueggemann, Chantal, Knoesen, André, Kruttwig, Klaus, L'etoile, Noelle, Louie, Angelique Y, Tu, Chuqiao, Yankelevich, Diego R   +6 more
core   +4 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Standardization of a new photodiagnosis method based on LEDs for patients with solar urticaria [PDF]

, 2016
Standard methods for photodiagnosis of solar urticaria are based in exposure of patient skin to different polychromatic UV and visible sources where minimal urticarial doses for different spectral bands (UVB and UVA) are established.
Aguilera-Arjona, Jose, Carrascosa, Jose Manel, De-Argila, Diego, De-Gálvez-Aranda, María Victoria, Gardeazabal, Jesús, Gilaberte, Yolanda, Giménez-Arnau, Ana, Herrera-Ceballos, Enrique, Perez-Ferriols, Amparo, Rodríguez-Granados, Teresa   +9 more
core  

Relay-Aided Secure Broadcasting for Visible Light Communications

, 2019
A visible light communication broadcast channel is considered, in which a transmitter luminaire communicates with two legitimate receivers in the presence of an external eavesdropper.
Arafa, Ahmed, Panayirci, Erdal, Poor, H. Vincent   +2 more
core   +1 more source

Fourier transform infrared spectrometer for a single aerosol particle [PDF]

, 1987
A spectrometer is reported here for obtaining the infrared spectrum of a single aqueous aerosol particle by a Fourier transform technique. The particle is held in an electrodynamic balance and irradiated simultaneously by the infrared output from a ...
Arnold, Stephen, Flagan, Richard C., Sageev Grader, Gideon, Seinfeld, John H.   +3 more
core   +1 more source

Copper’s rapid ascent in visible-light photoredox catalysis

Science, 2019
Spotlight on copper Photoredox catalysis relies on visible-light excitation to accelerate a burgeoning number of chemical reactions. Initially, the technique relied primarily on complexes of precious metals, such as ruthenium or iridium, to absorb the ...
Asik Hossain, A. Bhattacharyya, O. Reiser   +2 more
semanticscholar   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Single-Source VLCP System Based on Solar Cell Array Receiver and Right-Angled Tetrahedron Trilateration VLP (RATT-VLP) Algorithm

Photonics
A significant deployment limitation for visible light communication and positioning (VLCP) systems in energy- and light-source-restricted scenarios is the reliance of photodetectors (PDs) on external power supplies, compromising sustainability and ...
Dawei Xie, Zhongxu Liu, Changyuan Yu
doaj   +1 more source

Controlling Fibronectin Fibrillogenesis Using Visible Light

Frontiers in Molecular Biosciences, 2020
We previously developed a surface-assisted assay to image early steps of cell-induced plasma fibronectin (FN) fibrillogenesis by timelapse atomic force microscopy (AFM).
Tetyana Gudzenko, Clemens M. Franz, Clemens M. Franz   +2 more
doaj   +1 more source

Implications of visible light and means of photoprotection

Journal of Photochemistry and Photobiology, 2023
Visible light (VL) has been shown to promote genotoxicity through free radical generation and structural protein degradation. These stressful events promote cellular vulnerability, which manifests clinically as erythema, hyperpigmentation, and photoaging.
Brittany Lane, Henry W. Lim, Iltefat H. Hamzavi, Tasneem F. Mohammad, Indermeet Kohli   +4 more
doaj   +1 more source