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Porphyrin-Based Aluminum Metal-Organic Framework with Copper: Pre-Adsorption of Water Vapor, Dynamic and Static Sorption of Diethyl Sulfide Vapor, and Sorbent Regeneration.
Materials (Basel)
December 2024
Department of Chemistry, Morgan State University, 1700 East Cold Spring Lane, Baltimore, MD 21251, USA.
Metal-organic frameworks (MOFs) are hybrid inorganic-organic 3D coordination polymers with metal sites and organic linkers, which are a "hot" topic in the research of sorption, separations, catalysis, sensing, and environmental remediation. In this study, we explore the molecular mechanism and kinetics of interaction of the new copper porphyrin aluminum metal-organic framework (actAl-MOF-TCPPCu) compound with a vapor of the volatile organic sulfur compound (VOSC) diethyl sulfide (DES). First, compound was synthesized by post-synthetic modification (PSM) of Al-MOF-TCPPH compound by inserting Cu ions into the porphyrin ring and characterized by complementary qualitative and quantitative chemical, structural, and spectroscopic analysis.
View Article and Find Full Text PDF[Progress in applications of ambient ionization mass spectrometry for lipids identification].
Se Pu
January 2025
Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
Lipids are indispensable components of living organisms and play pivotal roles in cell-membrane fluidity, energy provision, and neurotransmitter transmission and transport. Lipids can act as potential biomarkers of diseases given their abilities to indicate cell-growth status. For example, the lipid-metabolism processes of cancer cells are distinct from those of normal cells owing to their rapid proliferation and adaptation to ever-changing biological environments.
View Article and Find Full Text PDFManagement of traumatic macrostriae in an undisplaced LASIK Flap.
Rom J Ophthalmol
October 2024
Indira Gandhi Institute of Medical Sciences, Patna, India.
Article Synopsis
- - A patient experienced poor vision in the right eye due to trauma from a rubber ball, 10 days after having LASIK surgery four years prior, and examination revealed multiple folds in the LASIK flap.
- - Urgent surgical intervention was performed that included epithelial debridement and flap lifting, which successfully smoothed the striae and led to proper healing with the application of a bandage contact lens.
- - Post-surgery, the patient achieved 20/20 vision, highlighting the importance of managing trauma to LASIK flaps, as incomplete wound healing increases susceptibility to complications like macrostriae.
Unexpected major geomagnetic storm caused by faint eruption of a solar trans-equatorial flux rope.
Nat Commun
October 2024
Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, 210023, Nanjing, Jiangsu, PR China.
Some geomagnetic storms' solar origins are ambiguous, making them hard to predict. On March 23, 2023, a severe geomagnetic storm occurred, however, forecasts based on remote-sensing observations failed to predict it. Here, we show clear evidence that this storm originates from the eruption of a trans-equatorial, longitudinal and low-density magnetic flux rope (FR) with weaker coronal emission and no chromospheric signs.
View Article and Find Full Text PDFUsing satellite-derived nearshore breaker information to study nearshore geomorphology and hydrodynamic environment.
Sci Total Environ
December 2024
College of Marine Geosciences, Ocean University of China, Qingdao 266100, China; Key Lab of Submarine Geosciences and Prospecting Techniques, MOE, Qingdao 266100, China.
Studying nearshore breakers contributes to the understanding of nearshore geomorphology and hydrodynamic environment, which is crucial for coastal engineering design, coastal erosion protection, and ensuring the safety of surfers and swimmers. However, previous studies on nearshore breakers have been hindered by the fickle nature of the nearshore environment and the challenges of in-situ measurements. This study utilized 4232 satellite images of five beaches, combined with simulated tidal heights, measured beach profiles, and wave information, to identify and analyze nearshore breakers.
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