Review
Chemistry, Multidisciplinary
Wing Ying Chow, Gaël De Paepe, Sabine Hediger
Summary: Solid-state NMR spectroscopy with magic-angle spinning enables the investigation of biological systems in their native context. However, low sensitivity due to the presence of other molecular species and the challenge of detecting low concentration species limit the feasibility of certain investigations. By applying dynamic nuclear polarization (DNP), the experimental time required can be significantly reduced, broadening the scope of biological solid-state NMR applications.
Article
Archaeology
Yang Zhang, Yahui Li, Xuegang Liu, Yusong Wang, Huanjie Tang, Liang Qu, Yuping Shang, Wei Chen
Summary: This study conducted a detailed investigation on the chemical fraction and mobility changes of archaeological leather to assess its deterioration using solid-state NMR spectroscopy. The results showed that tannins and collagen in the archaeological leather underwent degradation, and the relative fraction and 13C T1 distribution of specific amino acid residues could be used as important indicators to assess collagen degradation.
JOURNAL OF CULTURAL HERITAGE
(2022)
Article
Forestry
Sonoka Miyata, Dan Aoki, Yasuyuki Matsushita, Miyuki Takeuchi, Kazuhiko Fukushima
Summary: This study cultivated Ginkgo biloba L. saplings in a growth chamber with C-13 for two months. The C-13 ratio of the newly developed xylem region was evaluated using high lateral resolution secondary ion mass spectrometry and thioacidolysis/GC-MS. Solid-state C-13 direct polarisation/magic angle spinning (DP/MAS) NMR measurements were conducted for different wood samples, and the results suggested structural alterations of lignin during the sample preparation procedure, including ball milling.
Article
Chemistry, Physical
Benedikt Soeldner, Kristof Grohe, Peter Neidig, Jelena Auch, Sebastian Blach, Alexander Klein, Suresh K. Vasa, Lars V. Schaefer, Rasmus Linser
Summary: Understanding macromolecular function, interactions, and stability requires detailed assessment of conformational ensembles. Limited by the qualitative or low abundance of solid-state nuclear magnetic resonance internuclear distance information, accurately elucidating the spatial dynamics of solid proteins at physiological temperatures is challenging. However, this study demonstrates unprecedented access to abundant proton-proton internuclear distances, enabling accurate molecular dynamics simulations and providing atomic-level spatial details of conformational dynamics in various biomolecular systems.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Analytical
Bocheng Tu, Zishan Feng, Haitao Wang, Wei Zhang, Weicong Ye, Hongbo Wang, Xianjin Xiao, Wenbo Zhao, Tongbo Wu
Summary: This new method utilizes lambda exonuclease and a background signal suppression probe, which successfully suppresses the background signal through probe structure design to achieve highly sensitive OGG detection. The detection limit is 5.0 x 10(-4) U mL(-1), and its potential clinical application value was demonstrated in biological samples.
ANALYTICA CHIMICA ACTA
(2021)
Article
Biochemistry & Molecular Biology
Tatsuya Matsunaga, Ryotaro Okabe, Yoshitaka Ishii
Summary: The SLAP solvent suppression scheme, utilizing adiabatic inversion pulses in H-1-detected multidimensional solid-state NMR, demonstrated significantly improved solvent suppression performance compared to the traditional scheme MISSISSIPPI, with a decrease in average RF power by 2/3.
JOURNAL OF BIOMOLECULAR NMR
(2021)
Review
Biochemistry & Molecular Biology
Vitaly Volkov, Alexander Chernyak, Nikita A. Slesarenko, Irina A. Avilova
Summary: This review focuses on the progress of solvation and mobility studies in solid electrolyte, particularly ion-exchange membranes and composite materials, using NMR techniques. The applications of various NMR techniques are discussed, and comparisons are made between diffusion coefficients and ionic conductivity data. The microscopic mechanism of ionic transfer is also explored.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Analytical
Priscila Ivo Rubim de Santana, Joyce Sobreiro Francisco Diz de Almeida, Tanos Celmar Costa Franca, Jochen Junker
Summary: This article discusses the quantitative interpretation of 1D proton NMR experiments using absolute signal intensities, as well as the variation of common experimental parameters and their application.
JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY
(2022)
Article
Environmental Sciences
Jingzhao Wang, Chao Ren, Hongtao Wang, Wei Li
Summary: The study demonstrates that phosphate modification can enhance the fluoride adsorption performance of calcite, especially at low concentrations; however, at high concentrations, the predominant defluoridation mechanism is the formation of CaF2 precipitates, with the contribution of newly formed HAP being insignificant.
Article
Energy & Fuels
Francesco Panattoni, Jonathan Mitchell, Edmund J. Fordham, Ravinath Kausik, Clare P. Grey, Pieter C. M. M. Magusin
Summary: The study utilized high-field, solid-state NMR methods to analyze kerogen isolates of different maturity levels, finding that the aromatic/aliphatic ratio of kerogen increases with maturity. This increase in ratio is reflected in the H-1 MAS NMR spectra by the intensity ratio of aliphatic-to-aromatic signals, suggesting a decrease in kerogen proton density during maturation.
Review
Chemistry, Multidisciplinary
Tianrui Sun, Qi Liang, Sizhe Wang, Jiaxuan Liao
Summary: This article provides a comprehensive overview of existing research on the mechanism, identification, and solution strategies of lithium dendrites (LDs) in inorganic all solid-state batteries (ASSBs). The main triggers for LD growth are believed to originate at the interface and within the electrolyte, involving mechanical imperfections, inhomogeneous ion transport, inhomogeneous electronic structure, and poor interfacial contact. Some representative works are summarized, and an outlook for future research is provided.
Article
Geochemistry & Geophysics
Salman Abbasi, Vikram Jayaram, Jubran Akram, Md Iftekhar Alam, Siwei Yu
Summary: Microseismic datasets often have low signal-to-noise ratio waveforms. In order to improve the signal-to-noise ratio, noise suppression techniques are applied. In this study, a linear geometric mode decomposition approach is used to suppress background noise in microseismic datasets. The method optimizes linear patterns within amplitude-frequency modulated modes to distinguish microseismic events from background noise.
GEOPHYSICAL PROSPECTING
(2023)
Review
Multidisciplinary Sciences
Weiyu Wang, Jun Xu, Feng Deng
Summary: This review examines the recent progress in the study of zeolites and relevant catalytic reactions using solid-state NMR methods to explore framework structures, catalytically active sites, and intermolecular interactions. It also discusses the application of solid-state NMR technique in understanding the mechanistic aspects of zeolite-catalyzed reactions, such as methanol and ethanol conversions.
NATIONAL SCIENCE REVIEW
(2022)
Article
Instruments & Instrumentation
Panqiang Kang, Su Zhang, Xinlu Zhang, Jinjer Huang
Summary: This study investigates the high power self-Q-switched Tm:YAP laser and successfully generates stable pulse laser with the highest average output power reported so far. The research provides insights for the application of other types of self-Q-switched solid state lasers.
INFRARED PHYSICS & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Alexander Klein, Petra Rovo, Varun V. Sakhrani, Yangyang Wang, Jacob B. Holmes, Viktoriia Liu, Patricia Skowronek, Laura Kukuk, Suresh K. Vasa, Peter Guentert, Leonard J. Mueller, Rasmus Linser
Summary: NMR chemical shifts provide detailed information on the chemical properties of molecules. This study demonstrates the use of higher-dimensional, proton-detected, solid-state NMR to assign a large protein, tryptophan synthase, and characterize its chemical properties and relaxation. The results suggest a connection between active-site chemistry, electrostatic environment, and catalytically important dynamics.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Physical
Thi Khanh Ly Nguyen, Trang N. T. Phan, Fabrice Cousin, Didier Devaux, Sumit Mehan, Fabio Ziarelli, Stephane Viel, Didier Gigmes, Priscillia Soudant, Renaud Bouchet
Summary: This paper focuses on increasing the lithium transport number by synthesizing POSS-based macroanions and studying their properties in electrolytes. It is found that the size of macroanions has a significant impact on transport number, electrolyte viscosity, and tortuosity. The chemical affinity between the organic POSS shell and the solvent also affects the dissociation rate of Li+ ions.
CHEMISTRY OF MATERIALS
(2022)
Review
Chemistry, Physical
Marie Juramy, Giulia Mollica
Summary: This paper reviews the recent progress of Nuclear Magnetic Resonance (NMR) in investigating crystallization processes. It discusses the use of in-situ and ex-situ strategies combining cryogenic conditions with dynamic nuclear polarization (DNP) NMR to study the formation of intermediate phases during crystallization. The increased temporal and structural resolution enabled the detection of previously elusive transient forms.
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
D. Marin, G. Gerbaud, O. Margeat, F. Ziarelli, F. Ferrer, O. Ouari, A. Campos, S. Bertaina, A. Savoyant
Summary: The combination of nuclear and electron magnetic resonance techniques was used to study the light-induced magnetic state at the surface of chemically prepared zinc oxide nanoparticles. It was found that the observed four-line structure arises from surface-located methyl radicals and is replaced by trideuteromethyl with functionalization. Advanced pulse-EPR techniques reveal the modulation and correlations between different EPR transitions of the radicals.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Florian Ferrer, Marie Juramy, Ribal Jabbour, Samuel Cousin, Fabio Ziarelli, Giulia Mollica, Pierre Thureau, Stephane Viel
Summary: Dynamic nuclear polarization can significantly improve the sensitivity of magic-angle spinning solid-state NMR experiments. The use of a glycerol-based DNP solution is common to prevent phase separation of the paramagnetic polarizing agents. However, this study demonstrates that high H-1 DNP enhancements can also be achieved in water without glycerol by adding high concentrations of electrolytes, which disrupt ice crystallization and restore DNP efficiency.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Engineering, Biomedical
Marco Viola, Claudia Migliorini, Fabio Ziarelli, Stephane Viel, Claudia Cencetti, Daniel Di Risola, Luciana Mosca, Laura Masuelli, Pietro Matricardi, Chiara Di Meo
Summary: The novel amphiphilic polyacrylate grafted with cholesterol moieties, PAAbCH, has been extensively characterized and investigated, showing promising potential as an innovative excipient. It can enhance drug solubility, viscosity, and emulsifying properties, and forms stable hydrogel complexes with chitosan.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Samuel F. Cousin, Colan E. Hughes, Fabio Ziarelli, Stephane Viel, Giulia Mollica, Kenneth D. M. Harris, Arthur C. Pinon, Pierre Thureau
Summary: Solid-state DNP NMR can improve the detection of minor solid phases in heterogeneous materials. We demonstrated the use of NMR contrast based on DNP-enhanced polarization transport for the early detection of a small amount of a minor polymorphic phase within a major polymorph. We also showed that this approach allows for quantitative information on the spatial distribution of the two polymorphs.
Article
Chemistry, Physical
Eric Besson, Aurelien Vebr, Fabio Ziarelli, Emily Bloch, Guillaume Gerbaud, Severine Queyroy, Pierre Thureau, Stephane Viel, Stephane Gastaldi
Summary: Dynamic nuclear polarisation (DNP) is a technique that enhances the sensitivity of solid-state nuclear magnetic resonance (SSNMR) experiments by transferring the electron spin polarisation of paramagnetic species to nuclei. This study focuses on porous materials with wall-embedded radicals and explores the relationship between the molecular structure and the theoretical distance between the embedded radicals. The results suggest that the silica materials with the shortest oxygen-oxygen distance between the embedded radicals exhibit the highest DNP efficiency.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Roger-Charles Tissier, Baptiste Rigaud, Pierre Thureau, Miquel Huix-Rotllant, Maguy Jaber, Nicolas Ferre
Summary: Three anthraquinone-based chromophores were compared based on their experimental and computed NMR and UV-visible light absorption spectra, showing that proton chemical shifts and UV-visible absorption spectra can be accurately reproduced even in the presence of hydrogen bonding or impurities. The nature and importance of vibronic couplings vary among the three molecules, despite their differences in the number of hydroxyl groups.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
