Solid-state NMR is a quickly developing technique that allows one to obtain structural information at atomic resolution in extended lipid bilayers in a rather unique manner. Two approaches have been developed for membrane proteins and peptides namely magic angle sample spinning and the use of uniaxially oriented membrane samples. The state-of-the-art of both approaches will be introduced and the perspectives of solid-state NMR spectroscopy in the context of other structural biology techniques, pressing biomedical questions and membrane biophysics will be discussed.
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http://dx.doi.org/10.1016/j.bbamem.2023.184162 | DOI Listing |
Foods
January 2025
Tianjin Key Laboratory of Food Biotechnology, Institute of Collaborative Innovation in Great Health, College of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, China.
Alum, an essential additive in sweet potato vermicelli (SPV) production, is harmful to health. To eliminate the harm to the human body caused by alum in sweet potato vermicelli, and considering the different viscous properties of gliadin fractions, an experiment was performed to replace alum with gliadin fractions to enhance the boiling resistance of SPV in this study. The results showed that the longest boiling-resistant time of fresh SPV extended to 34.
View Article and Find Full Text PDFMaterials (Basel)
January 2025
College of Chemistry, Sichuan University, Chengdu 610064, China.
Circularly polarized luminescence (CPL) is an emerging field with significant applications in molecular electronics, optical materials, and chiroptical sensing. Achieving efficient CPL emission in organic systems remains a major challenge, particularly in the development of materials with high fluorescence quantum yields (Φ) and large luminescence dissymmetry factors (g). Herein, we report the efficient synthesis of shape-persistent tetraphenylethylene macrocycles and investigate its potential as a CPL material.
View Article and Find Full Text PDFMolecules
January 2025
Sustainable Chemistry for Metals and Molecules, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
A pyridine-fused triazapentalene shows weak fluorescence in solution and is readily accessible via nitrene-mediated cyclization. In this study, a modified Cadogan reaction was used to synthesize . Palladium-catalyzed reactions have been used as post-functionalization methods.
View Article and Find Full Text PDFChem Sci
January 2025
Materials Science and Engineering Program, The Graduate School, Florida State University 2005 Levy Ave. Tallahassee FL 32310 USA
Solid electrolytes (SEs) are crucial for advancing next-generation rechargeable battery technologies, but their commercial viability is partially limited by expensive precursors, unscalable synthesis, or low ionic conductivity. Lithium tetrahaloaluminates offer an economical option but exhibit low Li conductivities with high activation energy barriers. This study reports the synthesis of lithium aluminum chalcohalide (LiAlClS) using inexpensive precursors one-step mechanochemical milling.
View Article and Find Full Text PDFJ Phys Chem Lett
January 2025
National High Magnetic Field Laboratory, Florida State University, 1800 E. Paul Dirac Dr, Tallahassee, Florida 32310, United States.
The contribution of protons in or near biradical polarizing agents in Dynamic Nuclear Polarization (DNP) has recently been under scrutiny. Results from selective deuteration and simulations have previously suggested that the role of protons in the biradical molecule depends on the strength of the electron-electron coupling. Here we use the cross effect DNP mechanism to identify and acquire H solid-state NMR spectra of the protons that contribute to propagation of the hyperpolarization, via an experimental approach dubbed Nuclear-Nuclear Double Resonance (NUDOR).
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