Results 71 to 80 of about 161,231 (277)

Emergent Spin‐Glass Behavior in an Iron(II)‐Based Metal–Organic Framework Glass

Advanced Functional Materials, EarlyView.
A one‐pot, solvent‐free synthesis yields an Fe2+‐based metal‐organic framework (MOF) glass featuring a continuous random network structure. The material exhibits spin‐glass freezing at 14 K, driven by topological‐disorder and short‐range magnetic frustration, showcasing the potential of MOF glasses as a plattform for cooperative magnetic phenomena in ...
Chinmoy Das, Soma Salamon, Joachim Landers, Jan‐Benedikt Weiß, Wen‐Long Xue, Pascal Kolodzeiski, Roman Pallach, Heiko Wende, Sebastian Henke   +8 more
wiley   +1 more source

Calculating Porosity From Two-Dimensional NMR Relaxation Spectra of the Leikoupo Group's 4th Section

Chinese Journal of Magnetic Resonance, 2020
Formation porosity can be calculated from one-dimensional nuclear magnetic resonance (NMR) logging data with a fixed cutoff value and the volume model of conventional logging data.
HOU Ke-jun, WU Jian-meng, GE Xiang, ZHANG Shi-mao   +3 more
doaj   +1 more source

NMR Studies of Escherichia Coli Acyl Carrier Protein: Dynamic and Structural Differences of the Apo- and Holo-forms [PDF]

, 2006
Two indicators of conformational variability of Escherichia coli acyl carrier protein (ACP) have been investigated, namely backbone dynamics and chemical shift variations of ACP.
Eletr, Ziad, Kim, Yangmee, Kovriguine, Evgueni   +2 more
core   +2 more sources

¹²⁹Xe NMR Relaxation-Based Macromolecular Sensing

Journal of the American Chemical Society, 2016
We report a (129)Xe NMR relaxation-based sensing approach that exploits changes in the bulk xenon relaxation rate induced by slowed tumbling of a cryptophane-based sensor upon target binding. The amplification afforded by detection of the bulk dissolved xenon allows sensitive detection of targets.
Gomes, Muller D, Dao, Phuong, Jeong, Keunhong, Slack, Clancy C, Vassiliou, Christophoros C, Finbloom, Joel A, Francis, Matthew B, Wemmer, David E, Pines, Alexander   +8 more
openaire   +4 more sources

Energy‐Efficient Bulk Photoalignment of Main‐Chain Liquid Crystalline Polymers Enabled by In Situ Monitoring

Advanced Functional Materials, EarlyView.
In situ monitoring of bulk photoalignment reveals how molecular weight, azobenzene content, cooling rate, and thickness govern ordering in main‐chain liquid crystalline polymers. Optimized copolymers exceed conventional thickness limits, maintaining stable alignment up to 130 µm with high energy efficiency and reversible optical patterning.
Jaechul Ju, Joy Zhou, Connor J. O'Dea, Zachariah A. Page   +3 more
wiley   +1 more source

Establishment and Evaluation of Support Vector Machine Model for Adulteration Discrimination of Camellia Oil Based on Low-Field Nuclear Magnetic Resonance Relaxation Characteristics [PDF]

Shipin Kexue
The high commercial value of camellia oil entails the development of a rapid and accurate method for identifying camellia oil adulteration. In this study, the feasibility of using low-field nuclear magnetic resonance (LF-NMR) relaxation characteristics ...
LIN Xiaolang, FU Libin, WANG Xin
doaj   +1 more source

Integrative Approaches for DNA Sequence‐Controlled Functional Materials

Advanced Functional Materials, EarlyView.
DNA is emerging as a programmable building block for functional materials with applications in biomimicry, biochemical, and mechanical information processing. The integration of simulations, experiments, and machine learning is explored as a means to bridge DNA sequences with macroscopic material properties, highlighting current advances and providing ...
Aaron Gadzekpo, Ewa Anna Oprzeska‐Zingrebe, Mariana Kozlowska, Lennart Hilbert, Iliya D. Stoev   +4 more
wiley   +1 more source

Probing Quantum Hall Pseudospin Ferromagnet by Resistively Detected NMR

, 2009
Resistively Detected Nuclear Magnetic Resonance (RD-NMR) has been used to investigate a two-subband electron system in a regime where quantum Hall pseudo-spin ferromagnetic (QHPF) states are prominently developed. It reveals that the easy-axis QHPF state
C. Zhou, G. C. Guo, G. Cao, G. P. Guo, H. O. Li, H. W. Jiang, T. Tu, X. J. Hao, Y. J. Zhao, Z. R. Lin   +9 more
core   +1 more source

Photo‐Switching Thermal and Lithium‐Ion Conductivity in Azobenzene Polymers

Advanced Functional Materials, EarlyView.
Light‐responsive azobenzene polymers control thermal and ionic transport simultaneously through structural transitions. UV illumination disrupts π–π stacking, converting crystalline trans states to amorphous cis configurations. Thermal conductivity drops from 0.45 to 0.15 W·m−1·K−1 while Li+ diffusivity increases 100 fold. This dual transport switching
Jaeuk Sung, Jungwoo Shin, Qiujie Zhao, Minjee Kang, Christopher Evans, Cecilia Leal, Paul V. Braun, David G. Cahill   +7 more
wiley   +1 more source

Zero- to low-field relaxometry of chemical and biological fluids

Communications Chemistry, 2023
Nuclear magnetic resonance (NMR) relaxometry is an analytical method that provides information about molecular environments, even for NMR “silent” molecules (spin-0), by analyzing the properties of NMR signals versus the magnitude of the longitudinal ...
Seyma Alcicek, Piotr Put, Adam Kubrak, Fatih Celal Alcicek, Danila Barskiy, Stefan Gloeggler, Jakub Dybas, Szymon Pustelny   +7 more
doaj   +1 more source