Postmitochondrial supernatant, cytosol, and microsomes were exposed to near-ultraviolet light and assayed for incorporation of (3H)leucine. The results indicate that near-ultraviolet light decreased the incorporation of radioactivity into the aminoacyl-tRNA fraction and into proteins. This effect depended on the wavelength of irradiation and the concentration of exposed protein. Tryptophan and epinephrine potentiated the effect of near-ultraviolet light, but catalase prevented this effect. Hydrogen peroxide decreased protein synthesis when it was added to unirradiated postmitochondrial supernatant. The results suggest that near-ultraviolet light would decrease protein synthesis by generating hydrogen peroxide from tryptophan and epinephrine.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Enhancing Flexible Perovskite Photovoltaic Cells and Modules Through Light-Trapping and Light-Shifting Strategies.
Small Methods
January 2025
Institute of New Energy Technology, College of Physics & Optoelectronic Engineering, Jinan University, Guangzhou, Guangdong, 510632, China.
Flexible perovskite photovoltaic devices are typically constructed on flexible polyethylene naphthalate (PEN) substrates, which exhibit near-ultraviolet absorption and high visible-light reflection, leading to significant optical losses. To address this issue, a reusable optical-management sticker tailored for flexible substrates has been proposed in this work. The sticker incorporates a light-shifting material that converts near-ultraviolet light into visible light, enabling photoelectric conversion of near-ultraviolet light.
View Article and Find Full Text PDFRealizing Antithermal Quenching Red Emission in Mn-Activated RbNaVF for Optical Thermometry Sensor Application.
Luminescence
January 2025
Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, China.
Currently, the development of red Mn-activated fluoride luminescent materials attracts a lot of attention in optical thermometry sensors, solid lighting, display, and plant growth areas. Nevertheless, the thermal stability of Mn-activated fluoride luminescent materials is still a crucial issue. Herein, a new red RbNaVF:Mn luminescent material with outstanding thermal stability was successfully synthesized through the facial coprecipitation method.
View Article and Find Full Text PDFHighly efficient and thermally stable cyan-emitting ZnS/ZnO phosphors for full-visible-spectrum LED lighting.
RSC Adv
January 2025
Faculty of Materials Science and Engineering, Phenikaa University Yen Nghia, Ha-Dong District Hanoi 10000 Vietnam
Near-ultraviolet (NUV)-pumped white light-emitting-diodes (WLEDs) often suffer from poor color rendering in the 480-520 nm range, highlighting the need for an efficient cyan phosphor with strong absorption at 370-420 nm. This study presents the successful synthesis of cyan-emitting ZnS/ZnO phosphors using a high-energy planetary ball milling method followed by post-annealing. The fabricated phosphors, with particle sizes ranging from 1 to 3 μm, exhibit strong cyan emission with CIE chromaticity coordinates of (0.
View Article and Find Full Text PDFA narrow band blue phosphor NaBaAlBOCl:Eu for white light emitting diodes.
Dalton Trans
January 2025
Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China.
Exploring new photoexcited phosphors has attracted attention for improving the performance of white LEDs. Here, an NaBaAlBOCl:Eu phosphor with high color purity (94.11%) has been synthesized.
View Article and Find Full Text PDFSpectroscopic analysis of NIR emitting phosphors based on NaLaMgWO doped with Nd and Er.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Department of Physics, RTM Nagpur University, Nagpur 440033, India.
While searching for a new host suitable for near infrared (NIR) emission, we explored a new composition NaLaMgWO. The samples were prepared by solid state reaction method. X-ray Diffraction confirms crystallization of NaLaMgWO in monoclinic system.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!