Article
Optics
R. Sun, W. Wang, P. X. Wang
Summary: This letter proposes a scheme for accelerating neutral atoms using chirped laser pulses, and investigates the enhancement effect of pulse chirp on the acceleration of neutral particles through numerical simulation and analytical analysis.
Review
Engineering, Biomedical
Wenxin Xu, Na Xu, Manyue Zhang, Yan Wang, Guixia Ling, Yue Yuan, Peng Zhang
Summary: This article introduces the preparations and applications of nanotraps and discusses their shortcomings in practical applications. Nanotraps can capture and concentrate target substances, improving the sensitivity of downstream analysis techniques. During the COVID-19 pandemic, hydrogel nanotraps were successfully utilized for RT-PCR analysis. The use of nanotraps is a promising sample pre-processing technology with great significance in biomarkers discovery, diseases diagnosis, sewage purification, and valuable ions recovery.
ACTA BIOMATERIALIA
(2022)
Article
Optics
Jakub Liska, Lukas Jelinek, Miloslav Capek
Summary: Knowledge of the fundamental limitations on a magnetic trap for neutral particles is important for designers. This paper defines performance limitations using a local approximation and compares them with different trap designs. The comparison reveals a significant gap between traditional designs and fundamental limitations, indicating the potential for improved trap designs.
Article
Materials Science, Multidisciplinary
Min Chen, Jillian Rosenberg, Xiaolei Cai, Andy Chao Hsuan Lee, Jiuyun Shi, Mindy Nguyen, Thirushan Wignakumar, Vikranth Mirle, Arianna Joy Edobor, John Fung, Jessica Scott Donington, Kumaran Shanmugarajah, Yiliang Lin, Eugene Chang, Glenn Randall, Pablo Penaloza-MacMaster, Bozhi Tian, Maria Lucia Madariaga, Jun Huang
Summary: Nanotraps, a new nanomedicine, effectively inhibit SARS-CoV-2 infection by blocking the interaction between the virus and host cells; they demonstrate excellent biosafety in vitro and in vivo; Nanotraps successfully inhibit pseudotyped SARS-CoV-2 infection in live human lung tissue ex vivo.
Article
Chemistry, Inorganic & Nuclear
Jana Jurakova, Ondrej F. Fellner, Soren Schlittenhardt, Sarka Vavreckova, Ivan Nemec, Radovan Herchel, Erik Cizmar, Vinicius Tadeu Santana, Milan Orlita, Denis Gentili, Giampiero Ruani, Massimiliano Cavallini, Petr Neugebauer, Mario Ruben, Ivan Salitros
Summary: Two new hexacoordinated Co(II)-based single-ion magnets were synthesized and characterized. The complexes exhibited metal-centered coordination with nitrate anions and a 2,6-bis(1H-benzimidazole-2-yl)pyridine ligand with n-octyl or n-dodecyl chains. The presence of long aliphatic chains allowed for their solubility in low polarity and volatile solvents, enabling the preparation of microstructural layers and patterns on relevant substrates using wet lithographic techniques. The complexes displayed positive axial D parameters and showed field-induced slow relaxation of magnetization.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Engineering, Environmental
Xiaorui Li, Linfeng Jin, Lei Huang, Xueying Ge, Haoyu Deng, Haiying Wang, Yiming Li, Liyuan Chai, Shengqian Ma
Summary: Two imidazolium-based cationic polymeric nanotraps were designed and constructed for efficient removal of Cr2O72-. The influence of different counterions on the adsorption performance of Cr2O72- was studied, with CPN-tpm-Cl showing better performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Herve Besancon, Viktoriia Babiychuk, Yu Larpin, Rene Koffel, Dominik Schittny, Lara Brockhus, Lucy J. Hathaway, Parham Sendi, Annette Draeger, Eduard Babiychuk
Summary: This study further develops the liposomal nanotrap technology to simultaneously neutralize the entire range of cytolysins produced by Streptococcus pneumoniae, Streptococcus pyogenes, and Streptococcus dysgalactiae subspecies equisimilis. The mixture of high cholesterol-containing liposomes and choline-containing phospholipid liposomes is shown to be fully protective against the combined action of exotoxins secreted by these pathogens. Unraveling the universal mechanisms that define targeting of host cells by streptococcal cytolysins could lead to a broad-spectrum anti-toxin therapy for bacterial infections, including those caused by antibiotic-resistant pathogens, without diagnostic delay.
JOURNAL OF NANOBIOTECHNOLOGY
(2021)
Article
Physics, Multidisciplinary
Emma Deist, Yue-Hui Lu, Jacquelyn Ho, Mary Kate Pasha, Johannes Zeiher, Zhenjie Yan, Dan M. Stamper-Kurn
Summary: Subsystem readout is crucial for error correction in quantum computation. In this study, a strongly coupled optical cavity is used to read out the state of a single atom with high fidelity and nondestructively.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
Felipe Giraldo, Aishwarya Kumar, Tsung-Yao Wu, Peng Du, David S. Weiss
Summary: We propose a method for measuring the qubit state of an arbitrary subensemble of atoms in an array without significantly disturbing the quantum information in the unmeasured atoms. By selectively transferring atoms to an auxiliary state and using electromagnetically induced transparency (EIT) light and detection light, most states can be protected and the selected two states can be measured.
Article
Astronomy & Astrophysics
Ka Wai Ho, Ka Ho Yuen, Alex Lazarian
Summary: A new type of instability caused by the attractive nature of pressure force in the unstable phase has been recognized. The average aspect ratio of cold neutral medium (CNM) filaments is estimated to be around 5-20, which is smaller than predicted or observed. This suggests that the 'cold filaments' identified in observations might not be in pressure equilibrium or generated via other mechanisms.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2023)
Article
Physics, Multidisciplinary
Gohar Hovhannesyan, Maxence Lepers
Summary: Laser cooling and trapping of lanthanides have enabled new experiments with ultracold dipolar gases, such as quantum simulation of solid state physics. Having precise spectroscopic knowledge of the atom is crucial in identifying suitable candidates for laser cooling. In this study, we present a detailed modeling of the energy levels of neutral neodymium, an unexplored element in laser cooling. Using the semi-empirical method implemented in the Cowan suite of codes, we successfully interpret over 200 experimental levels and obtain optimal atomic parameters for future calculations of radiative transition probabilities.
Article
Engineering, Electrical & Electronic
Seung Kwan Kim, Dong-Joon Lee, Sun Do Lim, Young-Pyo Hong, No-Weon Kang
Summary: The method described enables precise alignment of the slow axis of PMF with the extraordinary axis of LiTaO3, optimizing the electro-optic effect associated with LiTaO3 and polarization for greater stability of the fabricated PMF sensing probe. This results in about 3 times enhancement in long term stability compared to a conventional single mode fiber probe, with an overall angular uncertainty of 1 degree when the fiber optic components have polarization angle tolerance of 1 degree.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Geosciences, Multidisciplinary
J. Kinrade, A. Bader, S. Badman, C. Paranicas, D. G. Mitchell, D. Constable, C. S. Arridge, S. W. H. Cowley, G. Provan
Summary: The study analyzed the morphology of oxygen and hydrogen ENAs in Saturn's magnetosphere using data from Cassini's Ion Neutral Camera, revealing differences in intensity between day and night sides, influenced by plasma injections and electric fields. Global intensity is clearly modulated with Saturn's near-planetary rotation period.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Amir Youssefi, Itay Shomroni, Yash J. Joshi, Nathan R. Bernier, Anton Lukashchuk, Philipp Uhrich, Liu Qiu, Tobias J. Kippenberg
Summary: This experiment demonstrates the cryogenic electro-optical readout of a superconducting electromechanical circuit using a commercial titanium-doped lithium niobate modulator, achieving coherent spectroscopy and incoherent thermometry. Further optimization of the modulator design could reduce the added noise of the setup to levels similar to current semiconductor microwave amplifiers.
NATURE ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Kuen Yao Lau, Alexander Pyymaki Perros, Diao Li, Maria Kim, Zhipei Sun
Summary: Graphene electro-optical modulators have emerged as a viable alternative to conventional modulators, offering broadband operation, ultrafast responsivity, small footprint, and low energy consumption. This study demonstrates the use of scalable graphene electro-optical modulators in all-fibre pulsed laser applications, showcasing its potential for high-performance 2 μm pulsed fibre lasers in various fields such as medical treatment, material processing, and spectroscopy.