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Unbound Medicine.
(cesium)
17,250 results
  • Laser-Generated Supranano Liquid Metal as Efficient Electron Mediator in Hybrid Perovskite Solar Cells. [Journal Article]
    Adv Mater. 2020 Jul 09 [Online ahead of print]Yu H, Zhao W, … Wang H
  • Creating colloids of liquid metal with tailored dimensions has been of technical significance in nano-electronics while a challenge remains for generating supranano (<10 nm) liquid metal to unravel the mystery of their unconventional functionalities. Present study pioneers the technology of pulsed laser irradiation in liquid from a solid target to liquid, and yields liquid ternary nano-alloys tha…
  • Cesium removal using acid- and base-activated biotite and illite. [Journal Article]
    J Hazard Mater. 2020 Jun 26; 401:123319.Kwon S, Kim Y, Roh Y
  • Biotite and illite have excellent cesium (Cs) adsorption capacity due to their negative charges in addition to adsorption sites of the planar, interlayer, and frayed edge sites (FES). The aim of this study is to investigate the Cs adsorption capacity using acid- and base-activated biotite and illite based on their mineralogical characteristics. The acid-activated biotite and base-activated illite…
  • Effects of Temperature on Cs+(H2O)20 Clathrate Structure. [Journal Article]
    J Phys Chem Lett. 2020 Jul 07 [Online ahead of print]Stachl CN, Williams ER
  • Clusters consisting of 20 water molecules and a single cesium ion are especially stable owing to a clathrate structure that is composed exclusively of three-coordinate water molecules. Clathrate stability was investigated using infrared photodissociation (IRPD) spectroscopy in the free-OH stretching region (∼3600-3800 cm-1) over ion cell temperatures between 135 K and 355 K. At 275 K and colder, …
  • Long-armed hexapod nanocrystals of cesium lead bromide. [Journal Article]
    Nanoscale. 2020 Jul 07 [Online ahead of print]Li S, Probst J, … deMello AJ
  • Colloidal lead halide perovskite nanocrystals (LHP NCs) assume a variety of morphologies (e.g. cubes, sheets, and wires). Their labile structural and surface characters allow them to undergo post-synthetic evolution of shape and crystallographic characters. Such transformations can be advantageous or deleterious, and it is therefore vital to both understand and exert control over these processes.…
  • Isolation, Purification, and Characterization of Leptophages. [Journal Article]
    Methods Mol Biol. 2020; 2134:67-75.Schiettekatte O, Bourhy P
  • To date, only three bacteriophages of leptospires-leptophages-are known. Nonetheless, numerous prophages have been found in the genus, especially in the genomes of pathogenic species. Thus, some laboratories attempt to isolate leptophage particles from environmental samples or following mitomycin C induction of bacterial cultures. Here, we propose multiple procedures to isolate, purify, and chara…
  • A piperidinium salt stabilizes efficient metal-halide perovskite solar cells. [Journal Article]
    Science. 2020 Jul 03; 369(6499):96-102.Lin YH, Sakai N, … Snaith HJ
  • Longevity has been a long-standing concern for hybrid perovskite photovoltaics. We demonstrate high-resilience positive-intrinsic-negative perovskite solar cells by incorporating a piperidinium-based ionic compound into the formamidinium-cesium lead-trihalide perovskite absorber. With the bandgap tuned to be well suited for perovskite-on-silicon tandem cells, this piperidinium additive enhances t…
  • Tailored optical potentials for Cs atoms above waveguides with focusing dielectric nano-antenna. [Journal Article]
    Opt Lett. 2020 Jul 01; 45(13):3512-3515.Ang AS, Shalin AS, Karabchevsky A
  • Tuning the near field using all-dielectric nano-antennas offers a promising approach for trapping atoms, which could enable strong single-atom-photon coupling. Here we report the numerical study of an optical trapping of a single Cs atom above a waveguide with a silicon nano-antenna, which produces a trapping potential for atoms in a chip-scale configuration. Using counter-propagating incident fi…
  • Self-amplifying memory based on multiple cascading four-wave mixing via recoil-induced resonance. [Journal Article]
    Opt Lett. 2020 Jul 01; 45(13):3490-3493.Lopez JP, de Melo AMG, Tabosa JWR
  • We report on a new, to the best of our knowledge, type of optical memory that allows for the amplification of the optical signal carrying the stored information during its reading process. The memory mechanism is demonstrated in an ensemble of cold cesium atoms and is based on the multiple parametric four-wave mixing exploring the external atomic degrees of freedom via recoil-induced resonances. …
  • Cesium suppresses fibroblast proliferation and migration. [Journal Article]
    Fukushima J Med Sci. 2020 Jul 04 [Online ahead of print]Khatun Z, Nishimura N, … Hazama A
  • During wound healing, fibroblasts proliferate from the margin, and migrate into the provisional matrix where they differentiate into myofibroblasts resulting in wound contraction; however, fibroblasts are hyperproliferative during chronic tissue damage. We previously reported that cesium chloride inhibited a human cancer cell proliferation; therefore, cesium is also presumed to suppress fibroblas…
  • Structure Dependence of Poisson's Ratio in Cesium Silicate and Borate Glasses. [Journal Article]
    Materials (Basel). 2020 Jun 24; 13(12)Østergaard MB, Bødker MS, Smedskjaer MM
  • In glass materials, Poisson's ratio (ν) has been proposed to be correlated with a variety of features, including atomic packing density (Cg), liquid fragility (m), and network connectivity. To further investigate these correlations in oxide glasses, here, we study cesium borate and cesium silicate glasses with varying modifier/former ratio given the difference in network former coordination and b…
  • Slow Anion-Exchange Reaction of Cesium Lead Halide Perovskite Nanocrystals in Supramolecular Gel Networks. [Journal Article]
    ACS Omega. 2020 Jun 23; 5(24):14370-14375.Yamauchi M, Fujiwara Y, Masuo S
  • Cesium lead halide perovskite nanocrystals are widely studied as among the most attractive emissive nanomaterials because of their high photoluminescence quantum yield and tunable emission wavelengths over the whole visible-light region by the halide ion-exchange reaction. However, the reactions were often observed in solution and generally very fast, which interferes with the fine-tuning capabil…
  • Cs desorption behavior during hydrothermal treatment of illite with oxalic acid. [Journal Article]
    Environ Sci Pollut Res Int. 2020 Jun 27 [Online ahead of print]Kim SM, Yoon IH, … Park SJ
  • The desorption of radioactive cesium (Cs) in soil is influenced by the clay mineral type, adsorption site, and concentration of Cs. In this study, experiments to detect desorption of non-radioactive and radioactive Cs from illite using oxalic acid were performed for 2 days at 70 °C in hydrothermal conditions. The results showed that the 133Cs removal efficiency by oxalic acid and inorganic acid t…
  • Selective Capture of Thallium and Cesium by a Cryptophane Soluble at Neutral pH. [Journal Article]
    J Org Chem. 2020 Jul 08 [Online ahead of print]Brotin T, Berthault P, … Mulatier JC
  • We report in this article the synthesis of an asymmetrical cryptophane derivative (possessing only C3-symmetry) bearing three phenol groups and three other carboxylic acid functions, each of these groups on the aromatic rings. Thanks to isothermal titration calorimetry experiments, we show that this compound binds large monovalent cations, such as Cs+ and Tl+, with a binding constant significantl…
  • Aqueous Precursor Induced Morphological Change and Improved Water Stability of CsPbBr3 Nanocrystals. [Journal Article]
    Chemistry. 2020 Jun 25 [Online ahead of print]Shankar H, Bansal P, … Kar P
  • In literature, lead halide perovskites are very notable for their degradation in the presence of polar solvents, such as water. In contrast to this research, we observed that adding minor amount of water in precursor solution can improve the stability and photoluminescence quantum yield of CsPbBr3 nanocrystals through a ligand-assisted reprecipitation (LARP) method. In this order, the shape and p…
  • Early-Life Environmental Exposures and Childhood Obesity: An Exposome-Wide Approach. [Journal Article]
    Environ Health Perspect. 2020 Jun; 128(6):67009.Vrijheid M, Fossati S, … Chatzi L
  • CONCLUSIONS: This first comprehensive and systematic analysis of many suspected environmental obesogens strengthens evidence for an association of smoking, air pollution exposure, and characteristics of the built environment with childhood obesity risk. Cross-sectional biomarker results may suffer from reverse causality bias, whereby obesity status influenced the biomarker concentration. https://doi.org/10.1289/EHP5975.
  • Environmental Remediation of the difficult-to-return zone in Tomioka Town, Fukushima Prefecture. [Journal Article]
    Sci Rep. 2020 Jun 23; 10(1):10165.Cui L, Taira Y, … Takamura N
  • Temporal variations in ambient dose rates in a restricted area designated as "difficult-to-return" for residents of Tomioka Town, Fukushima Prefecture were evaluated in a car-borne survey during 2018-2019. The median dose rates in the "Decontaminated area" in the difficult-to-return zone decreased rapidly from 1.0 μSv/h to 0.32 μSv/h; however, the median dose rates in the "Non-decontaminated area…
  • Glassy Flux Protocol to Confine Lead-Free CsSnX3 Nanocrystals Into Transparent Solid Medium. [Journal Article]
    J Phys Chem Lett. 2020 Jun 23 [Online ahead of print]Lin C, Chen D, … Dai S
  • Encapsulation of halide perovskites into transparent solid medium is important for increasing their stability and rendering the exploration of new optoelectronic application. Here, we describe a glassy flux protocol to confine lead-free cesium tin halide (CsSnX3) perovskite nanocrystals into transparent chalcogenide glassy matrix by capitalizing on judiciously designed germanium-antimony-sulfur c…
  • Cs4 PbI6 -Mediated Synthesis of Thermodynamically Stable FA0.15 Cs0.85 PbI3 Perovskite Solar Cells. [Journal Article]
    Adv Mater. 2020 Jun 21 [Online ahead of print]Shao Z, Meng H, … Pang S
  • The stability issue is still one of the main limitations of the commercialization of perovskite photovoltaics. The mixed cation FAx Cs1-x PbI3 has shown great promise owing to its improved thermal and moisture stability. However, the study of FAx Cs1-x PbI3 is concentrated on formamidine (FA)-rich perovskite, whereas cesium (Cs)-rich FAx Cs1-x PbI3 perovskites are barely studied due to the inevit…
  • Evaluation of optimal size of illite adsorbent for 137Cs removal in contaminated artificial lake. [Journal Article]
    J Environ Manage. 2020 Sep 01; 269:110739.Park JG, Han WS, … Yun TK
  • Since the Chernobyl and the Fukushima Daiichi disasters, contamination caused by radioactive accidents has attracted increasing attention. The present study evaluated immediate cleanup of 137Cs dissolved in surface water reservoir using an illite adsorbent, simulating an event of 137Cs contamination at Lake Paldang, South Korea. The study was conducted in two parts: (1) calculation of the residen…
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