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AuNPs/GO/Pt microneedle electrochemical sensor for in situ monitoring of hydrogen peroxide in tomato stems in response to wounding stimulation.
Anal Bioanal Chem
January 2025
School of Life Sciences, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, China.
Hydrogen peroxide (HO) is a critical signaling molecule with significant roles in various physiological processes in plants. Understanding its regulation through in situ monitoring could offer deeper insights into plant responses and stress mechanisms. In this study, we developed a microneedle electrochemical sensor to monitor HO in situ, offering deeper insights into plant stress responses.
View Article and Find Full Text PDFMelatonin antagonizes bone loss induced by mechanical unloading via IGF2BP1-dependent mA regulation.
Cell Mol Life Sci
January 2025
The Key Laboratory of Aerospace Medicine, Ministry of Education, Air Force Medical University, Xi'an, 710032, Shaanxi, China.
Disuse bone loss is prone to occur in individuals who lack mechanical stimulation due to prolonged spaceflight or extended bed rest, rendering them susceptible to fractures and placing an enormous burden on social care; nevertheless, the underlying molecular mechanisms of bone loss caused by mechanical unloading have not been fully elucidated. Numerous studies have focused on the epigenetic regulation of disuse bone loss; yet limited research has been conducted on the impact of RNA modification bone formation in response to mechanical unloading conditions. In this study, we discovered that mA reader IGF2BP1 was downregulated in both osteoblasts treated with 2D clinostat and bone tissue in HLU mice.
View Article and Find Full Text PDFExperimental study on modal analysis and vibration response of tunnel structures under different damage conditions due to subway train loads.
Sci Rep
January 2025
Inner Mongolia Research Institute, China University of Mining and Technology (Beijing), Ordos, 017000, China.
Based on a prototype of the Beijing subway tunnel, this research conducts large-scale model experiments to systematically investigate the vibration response patterns of tunnels with different damage levels under the influence of measured train loads. Initially, the polynomial fitting modal identification method (Levy) and the model test preparation process are introduced. Then, using time-domain peak acceleration, frequency response function, frequency-domain modal frequency, and modal shape indicators, a detailed analysis of the tunnel's dynamic response is conducted.
View Article and Find Full Text PDFAirspace closures due to reentering space objects.
Sci Rep
January 2025
Department of Political Science, University of British Columbia, Vancouver, BC, Canada.
Uncontrolled reentries of space objects create a collision risk with aircraft in flight. While the probability of a strike is low, the consequences could be catastrophic. Moreover, the risk is rising due to increases in both reentries and flights.
View Article and Find Full Text PDFA thin film optoelectronic photodetector of spherical and linear resonators via one-pot synthesis of Bi(III) oxide/polypyrrole nanocomposite.
Sci Rep
January 2025
Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
We report the fabrication and characterization of a Bi(III) oxide/polypyrrole (BiO/Ppy) nanocomposite thin film optoelectronic photodetector synthesized by a simple one-pot method. The nanocomposite consists of spherical BiO nanoparticles embedded in a Ppy matrix, forming a porous structure with a high surface area. The XRD analysis reveals that the BiO nanoparticles have a poly-crystalline nature with a crystal size of 40 nm and an optical bandgap of 2.
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