UV-visible absorption and resonance Raman (RR) spectra of liquid bromine are presented and rigorously interpreted. The RR spectra, which show an anharmonic vibrational progression of up to 30 overtones, define the ground state potential in the range 2.05 A
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1063/1.3291610 | DOI Listing |
J Phys Chem B
January 2025
Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37916, United States.
Eukaryotic plasma membranes exhibit nanoscale lateral lipid heterogeneity, a feature that is thought to be central to their function. Studying these heterogeneities is challenging since few biophysical methods are capable of detecting domains at submicron length scales. We recently showed that cryogenic electron microscopy (cryo-EM) can directly image nanoscale liquid-liquid phase separation in extruded liposomes due to its ability to resolve the intrinsic thickness and electron density differences of ordered and disordered phases.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Republic of Singapore.
Employing electrochemistry for the selective functionalization of liquid alkanes allows for sustainable and efficient production of high-value chemicals. However, the large potentials required for C(sp)-H bond functionalization and low water solubility of such alkanes make it challenging. Here we discover that a Pt/IrO electrocatalyst with optimized Cl binding energy enables selective generation of Cl free radicals for C-H chlorination of alkanes.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
Department of Occupational and Environmental Health, School of Public Health, Wuhan University, Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China; Research Center of Public Health, Renmin Hospital of Wuhan University, Wuhan University, Wuhan 430060, China; Hubei Provincial Center for Disease Control and Prevention & NHC Specialty Laboratory of Food Safety Risk Assessment and Standard Development, Wuhan 430079, China; Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Wuhan University, Wuhan 430072, China. Electronic address:
Prenatal exposure to hazardous environmental pollutants is a critical global concern due to their confirmed presence in umbilical cord blood, indicating the ability of pollutants to cross the placental barrier and expose the fetus to harmful compounds. However, the transplacental transfer efficiencies (TTEs) of many pollutants remain underexplored. Herein, we developed a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to quantitatively analyze 91 environmental pollutants, including 13 bisphenols (BPs), 18 organophosphorus flame retardants (OPFRs), 7 brominated and other flame retardants (BFRs), 34 phthalates (PAEs), and 19 per- and polyfluoroalkyl substances (PFASs), in paired maternal and cord serums.
View Article and Find Full Text PDFAnal Sci
December 2024
Faculty of Chemistry, University of Warsaw, Ul. Żwirki I Wigury 101, 02-089, Warsaw, Poland.
The femtosecond pump-probe technique, i.e. the transient transmission spectroscopy, has been used for the first time, to detect the vibrational spectra of symmetric fundamentals ν and ν in bromoform and chloroform.
View Article and Find Full Text PDFTalanta
April 2025
State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, 999078, China. Electronic address:
Carboxyl or carbonyl-containing metabolites (CoCCMs) are widely distributed in biological samples. Global profiling of CoCCMs is essential for ascertaining specific functions of metabolites and their potential physiological roles in biogenic activities. However, simultaneous determination of these compounds is hampered by poor ionization efficiency, vast polarity differences, wide discrepancy of concentration ranges.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!