Results 71 to 80 of about 526,143 (335)

Nuclear magnetic resonance spectroscopy with single spin sensitivity

Nature Communications, 2014
Nuclear magnetic resonance spectroscopy and magnetic resonance imaging at the ultimate sensitivity limit of single molecules or single nuclear spins requires fundamentally new detection strategies.
Christoph Müller, Xi Kong, Xi Kong, Jianming Cai, K. Melentijević, Alastair Stacey, Matthew Markham, D. Twitchen, J. Isoya, S. Pezzagna, Jan Meijer, Jiangfeng Du, M. Plenio, B. Naydenov, L. McGuinness, F. Jelezko   +15 more
semanticscholar   +1 more source

Deciphering the Origin of Higher Shell Coordination on Single Iron Catalysts for Resilient Modulating Persulfate Oxidation Into Singlet Oxygen Pathway

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study reveals that higher shell S coordination can effectively modulate the spin state of FeN4 site via long‐range electronic interactions, giving rise to the oriented generation of singlet oxygen from peroxymonosulfate activation. Abstract Precise manipulation of coordination structure of single‐atom sites and establishment of schematic ...
Liang Zhang, Kai Cheng, Zhizhi Yang, Ye Zhang, Shiro Kubuki, Paul A. Bingham, Yang‐Chun Yong, Bofan Zhang, Xiaoguang Duan   +8 more
wiley   +1 more source

"Analysis of degree of benzene ring hydrogenation in hydrogenating styrene-conjugated diene block copolymer with proton nuclear magnetic resonance spectroscopy"

Hecheng xiangjiao gongye
The microstructure and composition of styrene-conjugated diene block copolymer and its hydrogenation product hydrogenated styrene-conjugated diene block copolymer (HSBC) were determined by nuclear magnetic resonance spectroscopy, degree of benzene ring ...
LI Fu-shi1,2, MO Xiao-jun1, PENG Hong-li1, YANG Fan1, LIANG Hong-wen1, JI Xiang-ling2
doaj   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

High resolution spectroscopy of single NV defects coupled with nearby $^{13}$C nuclear spins in diamond

, 2012
We report a systematic study of the hyperfine interaction between the electron spin of a single nitrogen-vacancy (NV) defect in diamond and nearby $^{13}$C nuclear spins, by using pulsed electron spin resonance spectroscopy.
A. Dréau, J. H. N. Loubser, J.-F. Roch, J.-R. Maze, M. A. Bernstein, M. Lesik, V. Jacques   +6 more
core   +1 more source

Isotope Shift Measurements of Stable and Short-Lived Lithium Isotopes for Nuclear Charge Radii Determination [PDF]

, 2010
Changes in the mean-square nuclear charge radii along the lithium isotopic chain were determined using a combination of precise isotope shift measurements and theoretical atomic structure calculations.
A. Dax, A. Wojtaszek, B. A. Bushaw, B. A. Bushaw, C. D. P. Levy, C. Zimmermann, G. A. Noble, G. Ewald, G. W. F. Drake, G. W. F. Drake, G. W. F. Drake, H.-J. Kluge, J. Behr, J. Dilling, J. Lassen, J. Walls, K. Pachucki, L. I. Schiff, M. Dombsky, M. Pearson, M. Puchalski, P. Bricault, R. Sánchez, S. Götte, Th. Kühl, W. E. Otten, W. H. Press, W. Nörtershäuser, Z.-C. Yan   +28 more
core   +3 more sources

AI-designed NMR spectroscopy RF pulses for fast acquisition at high and ultra-high magnetic fields

Nature Communications, 2023
Nuclear magnetic resonance (NMR) spectroscopy is a powerful high-resolution tool for characterizing biomacromolecular structure, dynamics, and interactions. However, the lengthy longitudinal relaxation of the nuclear spins significantly extends the total
V. S. Manu, Cristina Olivieri, Gianluigi Veglia   +2 more
doaj   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Design, Synthesis, Characterization, Biological Activity and ADME Study of New 5-arylidene-4-Thiazolidinones Derivatives Having

Al-Mustansiriyah Journal of Pharmaceutical Sciences, 2019
New series of Nabumetone containing 5-arylidene-4-thiazolidinones pharmacophore as in compounds 3(a-e) were designed and synthesized by using nabumetone and hydrazinethiocarboamide to synthesize compound (1) (Schiff base), next step    compound (1)
Duha E. Taha, Ayad M.R Raauf, Karima F. Ali   +2 more
doaj   +1 more source