Article
Chemistry, Physical
Nathan A. Prisco, Arthur C. Pinon, Lyndon Emsley, Bradley F. Chmelka
Summary: By analogy to heat and mass transfer film theory, a general approach is introduced for determining hyperpolarization transfer rates between dilute electron spins and a surrounding nuclear ensemble. The empirical DNP polarization-transfer coefficient measured as a function of the bulk matrix H-1 spin density indicates the presence of two distinct kinetic regimes. The quantitative analyses closely agree with experimental measurements for the accumulation, propagation, and dissipation of hyperpolarization in solids, providing evidence for kinetically-limited transfer associated with a spin-diffusion barrier.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Multidisciplinary Sciences
J. Y. Liu, J. Yu, J. L. Ning, H. M. Yi, L. Miao, L. J. Min, Y. F. Zhao, W. Ning, K. A. Lopez, Y. L. Zhu, T. Pillsbury, Y. B. Zhang, Y. Wang, J. Hu, H. B. Cao, B. C. Chakoumakos, F. Balakirev, F. Weickert, M. Jaime, Y. Lai, Kun Yang, J. W. Sun, N. Alem, V Gopalan, C. Z. Chang, N. Samarth, C. X. Liu, R. D. McDonald, Z. Q. Mao
Summary: This study reveals the phenomenon of spin-valley locking and stacked quantum Hall effect in BaMnSb2, providing a rare platform for exploring coupled spin and valley physics.
NATURE COMMUNICATIONS
(2021)
Article
Astronomy & Astrophysics
Rajesh Biswas, Asaad Daher, Arpan Das, Wojciech Florkowski, Radoslaw Ryblewski
Summary: We numerically solve the boost-invariant equations of spin hydrodynamics confined to the first-order terms in gradients. The spin equation of state is consistently included in the first order, which relates the spin density tensor to the spin chemical potential. Depending on the form and structure of the spin transport coefficients, we find solutions that are both stable and unstable within the considered evolution times of 10 fm/c. These findings complement the recent identification of stable and unstable modes for perturbed uniform spin systems described by similar hydrodynamic frameworks.
Article
Chemistry, Physical
Chun Yu, Weinan Dong, Weng Fu, Weiran Zuo, Bao Guo
Summary: This paper investigates the adsorption behavior of MBT onto chalcocite at different electrochemical potentials using SHINERS. The results show that adsorption is less favorable at negative potentials and can even be completely inhibited. The authors propose a cathodic passivating process and the formation of a passivation layer as the reasons for the prevention of adsorption after potentials switch back to positive. This study suggests that electrochemical controlled flotation can enhance the separation efficiency of chalcocite.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Preeti Bhumla, Deepika Gill, Sajjan Sheoran, Saswata Bhattacharya
Summary: Spin-orbit coupling plays a key role in several intriguing quantum phenomena, including the Rashba-Dresselhaus effect. By studying the lead halide perovskite CsPbF3, researchers have discovered potential applications in spintronics, with tunable Rashba spin splitting and reversible spin textures observed. The findings suggest promising opportunities for perovskite-based spintronic devices.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Benjamin M. Fregoso
Summary: This paper calculates the electric spin susceptibility of Bloch electrons with spin-orbit coupling to second order. It is found that a nonequilibrium spin polarization can be generated in the bulk of nonmagnetic inversion-symmetric materials using linearly polarized electric fields, but this process depends on interband coherence and results in heating. Circular polarization may be able to avoid heating in certain scenarios. The standard Edelstein effect and spin orientation effects can also be recovered in appropriate limits within the formalism. Additionally, in metals, the electric spin susceptibility has contributions proportional to spin multipole moments of the Fermi sea, which dominate the low frequency spin response.
Article
Thermodynamics
Pranowo, Dio Afinanda Makarim, Akira Suami, Agung Tri Wijayanta, Nobusuke Kobayashi, Yoshinori Itaya
Summary: This study investigates the Marangoni convection during steam absorption into an aqueous LiBr solution and proposes a radial basis function (RBF) meshless method for numerical simulation. The results show that surface tension affects the absorbing solution, and increasing the Marangoni number has a significant effect on LiBr solution. Additionally, introducing a solid object at the interface can improve the velocity of convection flow.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Biochemical Research Methods
Whylder Moore, Ru Yao, Yangping Liu, Sandra S. Eaton, Gareth R. Eaton
Summary: Trityl-nitroxides exhibit potential as polarizing agents in solid state dynamic nuclear polarization. Understanding the impact of spin-spin interactions on relaxation times is crucial for optimization. Analysis of EPR spectra reveals the influence of exchange interaction on different regions of the spectra, with observations of two conformations for each diradical with varying J values. The nitroxide is shown to effectively enhance the relaxation of the trityl, even with relatively small values of J.
JOURNAL OF MAGNETIC RESONANCE
(2021)
Article
Physics, Multidisciplinary
Tatsuya Kaneko, Zhiyuan Sun, Yuta Murakami, Denis Golez, Andrew J. Millis
Summary: Through real-time dynamical calculations, we found that the effect of the applied electric field on the electronic order parameter in a collective quantum state led to a significant enhancement of the bulk photovoltaic effect, with resonant and broadband enhancements observed. This demonstrates that correlation effects can result in the bulk photovoltaic effect and shows that the collective behavior of ordered states can yield large nonlinear optical responses.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Yusong Cao, Jian Wang, Yi Qiao, Junpeng Cao, Wen-Li Yang
Summary: This study presents the exact solution of an anisotropic quantum spin chain with various interactions, revealing that NNN couplings can induce off-diagonal boundary reflections which enhance anisotropic interactions on the boundaries and bonds. The system is analytically solved using the off-diagonal Bethe ansatz method, providing insight into inhomogeneous T-Q relations, energy spectra, and Bethe ansatz equations for integrable models with interesting interactions.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2021)
Article
Astronomy & Astrophysics
HyungJoo Kim, Sungtae Cho, Su Houng Lee
Summary: We propose a new method to study a hadron's spin content by analyzing its response in a rotating frame. By examining the responses of quarks and gluons in this frame, we can determine the spin-rotation coupling and reveal the hadron's spin content. Our findings show that the spin-rotation coupling can be described by a universal formula, which allows us to identify the total spin of specific quarkonia in terms of the angular momentum of quarks and gluons. We also discover that the spin content of certain quarkonia, such as J/psi, differs slightly from the conventional quark model prediction.
Article
Chemistry, Physical
Zhu Jin, Yifeng Liu, Liang Wang, Chengtao Wang, Zhiyi Wu, Qiuyan Zhu, Lingxiang Wang, Feng-Shou Xiao
Summary: In this study, AuPd nanoparticles fixed within aluminosilicate zeolite crystals were used as catalysts for the direct synthesis of H2O2 in aqueous solution. The zeolite-assisted proton transfer process catalyzed the oxygen hydrogenation to form H2O2, leading to high productivity and selectivity of H2O2 in water. The findings highlight the potential of zeolite fixed structures for designing efficient catalysts in H2O2 synthesis.
Article
Chemistry, Physical
Rui Chen, Chang Liu, Yangyang Chen, Chao Ye, Shi Chen, Jinrong Cheng, Shixun Cao, Shenghao Wang, Anyang Cui, Zhigao Hu, He Lin, Jinlong Wu, Xiang Yang Kong, Wei Ren
Summary: This study developed a technique to synthesize millimeter-sized CsGeI3 single crystals using an aqueous solution, and examined their ferroelectric and photoelectric properties compared to theoretical predictions. These findings not only provide a new route for germanium-based perovskite single crystal synthesis, but also introduce potential applications in ferroelectric photovoltaics.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Environmental Sciences
Afzal Hussain, Obaid Afzal, Abdulmalik S. A. Altamimi, Raisuddin Ali
Summary: This study successfully removed azithromycin from contaminated water using green nanoemulsions, with ANE5 showing the best removal efficiency. The content of water and Capryol-90 in the nanoemulsions influenced the removal efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Lijun Zhu, Daniel C. Ralph, Robert A. Buhrman
Summary: The study investigates the mechanism of unexpected bulk spin-orbit torques (SOTs) in magnetic single-layers by utilizing chemically disordered FexPt1-x. It is found that the bulk dampinglike SOT arises from an imbalanced internal spin current and is sensitive to the presence of a vertical composition gradient. The discovery suggests the potential development of low-power single-layer SOT devices through strain engineering.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Pharmacology & Pharmacy
Steffen Jockusch, Chuanjuan Tao, Xiaoxu Li, Thomas K. Anderson, Minchen Chien, Shiv Kumar, James J. Russo, Robert N. Kirchdoerfer, Jingyue Ju
ANTIVIRAL RESEARCH
(2020)
Article
Biochemical Research Methods
Minchen Chien, Thomas K. Anderson, Steffen Jockusch, Chuanjuan Tao, Xiaoxu Li, Shiv Kumar, James J. Russo, Robert N. Kirchdoerfer, Jingyue Ju
JOURNAL OF PROTEOME RESEARCH
(2020)
Article
Multidisciplinary Sciences
Luis A. Ortiz-Rodriguez, Christian Reichardt, Sean J. Hoehn, Steffen Jockusch, Carlos E. Crespo-Hernandez
NATURE COMMUNICATIONS
(2020)
Article
Multidisciplinary Sciences
Avik K. Pati, Ouissam El Bakouri, Steffen Jockusch, Zhou Zhou, Roger B. Altman, Gabriel A. Fitzgerald, Wesley B. Asher, Daniel S. Terry, Alessandro Borgia, Michael D. Holsey, Jake E. Batchelder, Chathura Abeywickrama, Brandt Huddle, Dominic Rufa, Jonathan A. Javitch, Henrik Ottosson, Scott C. Blanchard
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Chemistry, Inorganic & Nuclear
Jiawei Chen, Hunter B. Vibbert, Chengbo Yao, Amymarie K. Bartholomew, Alexander P. Aydt, Steffen Jockusch, Jack R. Norton, Matthew Hammond, Michael Rauch
Article
Chemistry, Multidisciplinary
Sunil Kumar Kandappa, Lakshmy Kannadi Valloli, Steffen Jockusch, Jayaraman Sivaguru
Summary: An unprecedented photochemical reactivity of 1,3-dicarbonyl compounds with amino-alkenes has been discovered, leading to the formation of dihydropyrans. This novel reaction has changed the established paradigm related to the De Mayo reaction between 1,3-dicarbonyl compounds and alkenes and allows for convenient access to the Marmycin core from commercially available reactants in a single step. Detailed origin and scope of this new photoreaction have been investigated with preliminary photophysical and mechanistic studies.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Polymer Science
Kerem Kaya, Steffen Jockusch, Yusuf Yagci
Summary: A simple PET protocol using diphenyliodonium salt under UV, visible, and daylight irradiation was reported for the production of PDA. This methodology provides new directions for improving surface coatings and bio-functionalization.
Article
Chemistry, Multidisciplinary
Nazmiye B. Yapici, Xiang Gao, Xin Yan, Shanshan Hou, Steffen Jockusch, Lillian Lesniak, K. Michael Gibson, Lanrong Bi
Summary: The pH differences in organelles have functional implications and proper distribution of H+ ions across membranes is crucial for cellular events. Mitochondria and lysosomes are closely related, and a single fluorescent probe targeting both organelles can facilitate the understanding of their crosstalk.
Article
Biology
Xuanting Wang, Carolina Q. Sacramento, Steffen Jockusch, Otavio Augusto Chaves, Chuanjuan Tao, Natalia Fintelman-Rodrigues, Minchen Chien, Jairo R. Temerozo, Xiaoxu Li, Shiv Kumar, Wei Xie, Dinshaw J. Patel, Cindy Meyer, Aitor Garzia, Thomas Tuschl, Patricia T. Bozza, James J. Russo, Thiago Moreno L. Souza, Jingyue Ju
Summary: This paper discovers that hepatitis C virus inhibitors Pibrentasvir and Ombitasvir can inhibit the SARS-CoV-2 exonuclease and have therapeutic potential when combined with SARS-CoV-2 polymerase inhibitors in viral cell cultures. Combination drugs that inhibit both the SARS-CoV-2 polymerase and exonuclease are supported for effective COVID-19 treatment.
COMMUNICATIONS BIOLOGY
(2022)
Article
Chemistry, Physical
Naishka E. Caldero-Rodriguez, Enrique M. Arpa, Diego J. Cardenas, Lara Martinez-Fernandez, Steffen Jockush, Sourav Kanti Seth, Ines Corral, Carlos E. Crespo-Hernandez
Summary: This study investigates the excited-state dynamics of 2-oxopurine riboside in aqueous solution and demonstrates its potential use as a dual fluorescent and photosensitizer analog for DNA and RNA research.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Chemistry, Multidisciplinary
Luis A. Ortiz-Rodriguez, Ye-Guang Fang, Germain Niogret, Kaivin Hadidi, Sean J. Hoehn, Heather J. Folkwein, Steffen Jockusch, Yitzhak Tor, Ganglong Cui, Liraz Levi, Carlos E. Crespo-Hernandez
Summary: In this study, a new DNA and RNA fluorescent probe was developed by thionation, which showed high photodynamic efficacy against melanoma and cervical cancer cells under both normoxic and hypoxic conditions. The experimental and computational results demonstrated that the thionated pyrimidine derivative is the most promising thiobase photosensitizer developed to date.
Article
Chemistry, Multidisciplinary
Sapna Ahuja, Sruthy Baburaj, Lakshmy Kannadi Valloli, Sarvar Aminovich Rakhimov, Kavyasree Manal, Aakrati Kushwaha, Steffen Jockusch, Malcolm D. E. Forbes, Jayaraman Sivaguru
Summary: Aryl-maleimides undergo a novel [2+4]-photodimerization instead of the expected [2+2]-photodimerization, and the stereochemistry of the photodimer formed complements the product observed under thermal conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Analytical
Yaakov Weiss, Steffen Jockusch, Janne M. Koornneef, Oded Elazar, Gareth R. Davies
Summary: This study applied a new laser ablation technique combined with mass spectrometry measurements to analyze trace elements and radiogenic isotopes in high-density fluid microinclusion-bearing diamonds. The results showed that the new technique produced enough material for quantitative analysis of rare-earth elements and revealed that HDF microinclusions within individual diamonds are rather homogeneous in their isotopic composition.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Chemistry, Multidisciplinary
John L. Weber, Emily M. Churchill, Steffen Jockusch, Evan J. Arthur, Andrew B. Pun, Shiwei Zhang, Richard A. Friesner, Luis M. Campos, David R. Reichman, James Shee
Summary: In this study, the authors use the AFQMC method to predict the triplet energies of candidate annihilators for TTA upconversion, comparing the results to commonly used DFT functionals. They provide predictions regarding the thermodynamic feasibility of upconversion and successfully demonstrate the in silico discovery of a novel annihilator, phenyl-substituted BTD.
Article
Chemistry, Multidisciplinary
Kealan J. Fallon, Emily M. Churchill, Samuel N. Sanders, James Shee, John L. Weber, Rinat Meir, Steffen Jockusch, David R. Reichman, Matthew Y. Sfeir, Daniel N. Congreve, Luis M. Campos
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
