Article
Multidisciplinary Sciences
Xiang-Dong Chen, En-Hui Wang, Long-Kun Shan, Ce Feng, Yu Zheng, Yang Dong, Guang-Can Guo, Fang-Wen Sun
Summary: The research focuses on enhancing the interaction of electromagnetic fields with matter by localizing microwaves to a deep-subwavelength space, using a hybrid nanowire-bowtie antenna. This approach significantly boosts field intensity and microwave-spin interaction strength, with potential applications in integrated quantum information processing, sensing, and microwave photonics in nanoscale systems.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Wei Zhang, Zhibin Zhao, Min Tan, Adila Adijiang, Shurong Zhong, Xiaona Xu, Tianran Zhao, Emusani Ramya, Lu Sun, Xueyan Zhao, Zhiqiang Fan, Dong Xiang
Summary: The binding orientation of molecules with respect to the electrode is crucial for the performance of molecular devices. However, modulating the binding orientation of single molecules in situ remains challenging. In this study, we demonstrate that the conductance of pyridine-anchored molecular junctions can be controlled by the applied voltage using a STM-BJ technique. Flicker noise measurements and theoretical calculations support the notion that the orientation of nitrogen-gold bonds in the molecular junctions can be manipulated by the mechanical stretching force and electric fields.
Article
Chemistry, Multidisciplinary
Kai Qu, Ping Duan, Jin-Yun Wang, Bochao Zhang, Qian-Chong Zhang, Wenjing Hong, Zhong-Ning Chen
Summary: This study successfully identified the internal rotation of three crank-shaped molecules using scanning tunneling microscope break junction technique and theoretical simulation. Theoretical computational study demonstrated that the orbital energy changes with the conformational flipping, affecting the single-molecule conductance.
Article
Mining & Mineral Processing
Yingchao Liu, Jianhua Chen, Yuqiong Li, Cuihua Zhao
Summary: This study investigates the adsorption behaviors of H2O and O-2 on the chalcopyrite surface using density functional theory (DFT). The results show that H2O preferentially adsorbs on the surface Fe atoms, while the most stable adsorption of O-2 occurs on the hollow Fe-Fe site.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yusuke Sanada, Daisuke Yoshioka, Yoichi Kobayashi
Summary: The temperature dependence of color fading in thermally reversible photochromic reactions is a major challenge for industrial applications. Recent research on Cu-doped ZnS nanocrystals has shown a very small temperature dependence, attributed to a balance between charge recombination and water molecule adsorption/desorption on the surface of the nanocrystals acting as hole acceptors. Developing temperature-insensitive photochromic reactions is important for fundamental understanding of nanomaterials and for creating novel materials for outdoor applications.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Deepak Karna, Wei Pan, Shankar Pandey, Yuki Suzuki, Hanbin Mao
Summary: By incorporating pH responsive i-motif elements, DNA origami nanosprings that respond to pH changes in the environment have been constructed. The innovative force jump approach in optical tweezers allowed direct measurement of spring constants and dynamic recoiling responses under different forces, revealing two distinct force regions with different spring constants. The nanosprings showed slower recoiling rates, and were found to be up to 50 times stiffer compared to reported DNA origami nanosprings with a different design.
Article
Chemistry, Analytical
Yang Liu, Yi He
Summary: This study investigates the dynamic interaction between acetic acid and covalent organic framework, and reveals the increased binding affinity of acetic acid towards iodine under nanoconfinement, resulting in improved adsorption performance.
ANALYTICAL CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Debayan Purkait, Farhana Islam, Padmaja P. Mishra
Summary: The study reveals the important role of DrRecD2, an ATP-driven helicase, in DNA replication, nucleotide excision repair, and homologous recombination. Single-molecule studies show that DrRecD2 prefers binding at the 5' terminal end of single-stranded DNA and exhibits faster unwinding activity in the presence of ATP.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Business, Finance
Jeremie Bertrand, Aurore Burietz, Laurent Weill
Summary: The study shows that there is a significant variation in the loan amounts approved by banks across different months. Quarter-end and year-end months have a positive effect on loan amounts, possibly due to trade loading behavior where banks inflate approved loans to meet financial targets.
FINANCE RESEARCH LETTERS
(2021)
Editorial Material
Nanoscience & Nanotechnology
Takashi Kumagai
Summary: Sub-molecular spectroscopy allows for the study of incoherent and coherent electronic energy transfer in artificial molecular donor-acceptor systems, as well as their dependence on molecular arrangement.
NATURE NANOTECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Bruno C. Publio, Bruno S. Oliveira, Cassiano Rabelo, Hudson Miranda, Thiago L. Vasconcelos, Ado Jorio, Luiz Gustavo Cancado
Summary: The article discusses the scattering process in tip-enhanced Raman spectroscopy (TERS) in distinct ways, based on the interaction of the radiation field with the plasmonic nano-structure or scattering medium itself. It provides further development on the TERS theory and a comprehensive description of the TERS intensity related to one- and two-dimensional samples.
Article
Multidisciplinary Sciences
Chaojiang Zhang, Cheng Zhu, Andre K. Eckhardt, Ralf Kaiser
Summary: A tetrahedral phosphorus-nitrogen molecule was prepared through low-temperature phosphine-nitrogen ices and identified in the gas phase. The substitution of a single phosphorus atom by nitrogen enhances the spherical aromaticity of the molecule and increases the strain energy. The tetrahedral phosphorus-nitrogen molecule has a shortened P-P bond and a larger P-N-P bond angle compared to the phosphorus molecule.
Article
Chemistry, Analytical
Sujesh Sudarsan, Anusha Prabhu, Dinesh Prasad, Naresh Kumar Mani
Summary: This study investigates the use of PEG 8000 and CTAB as compaction agents for the ITS-2 amplicon of Candida albicans and examines their effect on the fluorescence intensity of SYTO-9 labelled nucleic acids. The results show that both PEG 8000 and CTAB can enhance the emission intensity. Paper-based spot tests and distance-based assays also confirm the enhancement of sensitivity with compacted DNA. This research highlights the importance of DNA compaction in improving fluorescence-based nucleic acid assays.
Article
Critical Care Medicine
Xiaojun Wu, Xiaofan Liu, Yilu Zhou, Hongying Yu, Ruiyun Li, Qingyuan Zhan, Fang Ni, Si Fang, Yang Lu, Xuhong Ding, Hailing Liu, Rob Ewing, Mark Jones, Yi Hu, Hanxiang Nie, Yihua Wang
Summary: Most patients recovering from severe COVID-19 showed improvement in dyspnoea scores and exercise capacity over time, but a subgroup of patients still exhibited persistent physiological and radiographic changes at 12 months post-discharge. A unified pathway for respiratory follow-up is needed for COVID-19 patients.
LANCET RESPIRATORY MEDICINE
(2021)
Article
Biochemistry & Molecular Biology
Arpan Dey, Vicky Vishvakarma, Anirban Das, Mamata Kallianpur, Simli Dey, Roshni Joseph, Sudipta Maiti
Summary: The text describes a method for measuring the degree of surface exposure of protein molecules through photobleaching and fluorescence quenching techniques. By analyzing the increase in step length, the accessibility of fluorophores to solvents is determined, revealing different species with varying levels of exposure. This approach provides a simple way to probe the conformational states of membrane proteins at a single molecule level.
FRONTIERS IN MOLECULAR BIOSCIENCES
(2021)
