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  1. 1601

    Slow Relaxation of the Magnetisation in a Two-Dimensional Metal–Organic Framework with a Layered Square Lattice by Samia Benmansour, Christian Cerezo-Navarrete, Carlos J. Gómez-García

    Published 2024-12-01
    “…These compounds, formulated as (H<sub>3</sub>O)[Eu(C<sub>6</sub>O<sub>4</sub>(CN)Cl)<sub>2</sub>(H<sub>2</sub>O)]·34H<sub>2</sub>O (<b>1</b>) and (H<sub>3</sub>O)[Dy(C<sub>6</sub>O<sub>4</sub>(CN)Cl)<sub>2</sub>(H<sub>2</sub>O)]·44H<sub>2</sub>O (<b>2</b>), are isostructural and show a (4,4)-layered square structure with the crystallisation water molecules located between the layers. The lanthanoid ions are surrounded by four bis-bidentate chlorocyananilato ligands that connect each Ln<sup>III</sup> centre with other four, giving rise to square cavities formed by Ln<sup>III</sup> centres in the vertices and chlorocyananilato ligands as the sides. …”
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  2. 1602

    Structural basis for RNA-guided DNA degradation by Cas5-HNH/Cascade complex by Yanan Liu, Lin Wang, Qian Zhang, Pengyu Fu, Lingling Zhang, Ying Yu, Heng Zhang, Hongtao Zhu

    Published 2025-02-01
    “…Notably, we also find that divalent ions such as zinc, cobalt, and nickel down-regulate enzyme activity by destabilizing the Cascade complex. …”
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  3. 1603

    INFLUENCE OF IONIZING IRRADIATION ON THE PARAMETERS OF ZN NANOTUBES ARRAYS FOR DESIGN OF FLEXIBLE ELECTRONICS ELEMENTS by D. B. Kadyrzhanov, M. V. Zdorovets, A. L. Kozlovskiy, A. V. Petrov, V. D. Bundyukova, A. E. Shumskaya, E. Yu. Kaniukov

    Published 2018-03-01
    “…Using the methods of scanning electron microscopy, X-ray diffraction and energy dispersive analysis, the structure of nanotubes having a polycrystalline structure and completely consisting of zinc was studied and it was demonstrated that irradiation with Ar8+ ions with a dose from 1 × 109 to 5 × 1011 ion/cm2 and energy 1.75 MeV/nucleon has an effect on the crystal structure of nanotubes.At high doses, localized highly defect zones arise, leading to a critical change in the structure and physical properties of the nanotubes, respectively. …”
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  4. 1604

    Shedding Light on the Active Species in a Cobalt‐Based Covalent Organic Framework for the Electrochemical Oxygen Evolution Reaction by Pouya Hosseini, Andrés Rodríguez‐Camargo, Yiqun Jiang, Siyuan Zhang, Christina Scheu, Liang Yao, Bettina V. Lotsch, Kristina Tschulik

    Published 2025-01-01
    “…These results suggest that cobalt oxide‐based nanoparticles are formed in TpBpy‐Co from Co(II) ions coordinated to the COF backbone when exposing TpBpy‐Co to alkaline media, and these newly formed nanoparticles serve as the primary active species for oxygen evolution. …”
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  5. 1605

    High antimony resistance strain Enterobacter sp. Z1 mediates biomineralization of antimony trioxide by Zijie Zhou, Hongbo Yu, Gejiao Wang, Mingshun Li, Kaixiang Shi

    Published 2025-01-01
    “…Our findings revealed the pyruvate–HMG-CoA pathway as the mechanism underlying Sb biomineralization, facilitating the release of Sb ions from tartrate and maintaining intracellular pH stability, thereby catalyzing Sb2O3 synthesis. …”
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  6. 1606

    Effects of Cu(II) on the Adsorption Behaviors of Cr(III) and Cr(VI) onto Kaolin by Juanjuan Liu, Xiaolong Wu, Yandi Hu, Chong Dai, Qin Peng, Dongli Liang

    Published 2016-01-01
    “…Comparing the adsorption behaviors and mechanisms, we found that kaolin prefers to adsorb hydrolyzed products of Cr(III) instead of Cr3+ ion, while adsorption sites of kaolin surface were occupied primarily by Cu(II) through surface complexation, leading to Cu(II) inhibited Cr(VI) adsorption. …”
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  7. 1607

    Preferential Crystallographic Orientation and Optical Properties in (Ag,Zn)-Based Oxide Nanoparticle Thin Film Depending on Spark Voltage by Ebru Güngör, Tayyar Güngör

    Published 2024-01-01
    “…The optical band gap narrowed (redshifted) due to the effect of Ag ions entering the ZnO structure. As the spark voltage increased, the difference between the optical band gaps of ZnO and Ag:ZnO also increased. …”
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  8. 1608

    Application of Polypyrrole Cellulose Nanocrystalline Composite Conductive Material in Garment Design by Si Su, Shaoying Hu, Qi Liu

    Published 2022-01-01
    “…Nanocrystals, also called nanoscale crystals, use high-energy polymer spheres to pack calcium, magnesium ions, and bicarbonate in water to produce a water-insoluble crystal structure. …”
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  9. 1609

    Chemical Fingerprint and Metabolic Profile Analysis of Tianshu Tablets by Ultra-High Performance Liquid Chromatography/Quadrupole-Time of Flight Mass Spectrometry by Lin Chen, Renhao Chen, Hui Ouyang, Qi Wang, Zhifeng Li, Yulin Feng, Shilin Yang

    Published 2019-01-01
    “…In a preliminary study, 77 chemical components in TST were determined by comparison with retention times, accurate molecular mass, and characteristic fragment ions of the known compounds in the literature and some well-known compounds were analyzed in detail, and the fragmentation pathways for parishins B, gastrodin A, and cnidilide or neocnilide were specifically analyzed. …”
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  10. 1610

    Rapid adsorption of selenium removal using iron manganese-based micro adsorbent by Sundus Saeed Qureshi, Sheeraz Ahmed Memon, Rafi-ul-Zaman, Nanik Ram, Sumbul Saeed, Nabisab Mujawar Mubarak, Rama Rao Karri

    Published 2022-10-01
    “…Then it was applied to remove selenium ions in an aqueous system. The data revealed that the optimum conditions for the highest removal (95.6%) of selenium were observed at pH 8.5, adsorbent dosage of 25 mg, and contact time of 60 min, respectively, with the initial concentration of 1 ppm. …”
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  11. 1611

    Elicitation with Sodium Silicate and Iron Chelate Affects the Contents of Phenolic Compounds and Minerals in Buckwheat Sprouts by Henryk Dębski, Wiesław Wiczkowski, Dorota Szawara-Nowak, Marcin Horbowicz

    Published 2021-02-01
    “…Phenolic compounds were analysed using an HPLC–MS/MS apparatus equipped with an ion-trap mass spectrometer, and analyses were conducted by multiple reaction monitoring of selected negative ions. …”
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  12. 1612

    Iron(III) edta-accelerated growth of gold/silver core/shell nanoparticles for wide-range colorimetric detection of hydrogen peroxide by Mahdi Hemmati, Amir Hossein Q. Selakjan, Forough Ghasemi

    Published 2025-02-01
    “…We used ascorbic acid (AA) as the electron donor to reduce silver ions (Ag+) to be shelled around gold nanoparticles and iron(III) edta as an accelerator reactant. …”
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  13. 1613

    Assessment of Patients with a DePuy ASR Metal-on-Metal Hip Replacement: Results of Applying the Guidelines of the Spanish Society of Hip Surgery in a Tertiary Referral Hospital by Jenaro Fernández-Valencia, Xavier Gallart, Guillem Bori, Sebastián Garcia Ramiro, Andrés Combalía, Josep Riba

    Published 2014-01-01
    “…All the cups had a correct abduction angle, and there was no correlation between elevated serum levels of metal ions and implant failure. Since two previous ASR implants were exchanged previously to the recall, the revision rate for ASR cups in our centre is 18.2% at 2.9 years.…”
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  14. 1614

    Masking Ability of Various Metal Complexing Ligands at 1.0 mM Concentrations on the Potentiometric Determination of Fluoride in Aqueous Samples by Sakuni M. De Silva, Samitha Deraniyagala, Janitha K. Walpita, Indira Jayaweera, Saranga Diyabalanage, Asitha T. Cooray

    Published 2020-01-01
    “…Among many analytical methods used for the quantification of fluoride in natural waters, potentiometric analysis is one of the most widely used methods because of minimum interferences from other ions commonly present in natural waters. The potentiometric analysis requires the use of ionic strength adjusting buffer abbreviated as TISAB to obtain accurate and reproducible data. …”
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  15. 1615

    Preparation of ZnAl layered double hydroxides supported by silica for the treatment of Cr(VI) and Cu(II) in aqueous solution by Fengrong Zhang, Luxing Liu, Cuilan Zhang, Dawei Shang, Lishun Wu

    Published 2025-01-01
    “…The adsorption properties of ZA/SiO2 for the removal of toxic metal ions (Cu(II) and Cr(VI)) from water were evaluated. …”
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  16. 1616

    Diurnal Variation of Chemical Characteristics and Source Identification of Fine Particles in the Kaohsiung Harbor by Yu-Lun Tseng, Kwok-Wai Wong, Chung-Shin Yuan, Chitsan Lin

    Published 2022-05-01
    “…Three sites located in the harbor areas were selected for simultaneously sampling 12-h PM2.5 in four months with consecutive seven days in each month. Water-soluble ions (WSIs), metallic elements, carbons, anhydrosugars, and organic acids in PM2.5 were analyzed to characterize their chemical fingerprints and monthly variation. …”
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  17. 1617

    Inhibitory Effect on the Tyrosinase Activity and Low Cytotoxicity of Monounsaturated Long-Chain Chelating Fatty Ester by ANTONIO SERGIO C. CARVALHO, TATIANA N. PEDROSA, HERONILDES A. DANTAS FILHO, RAQUEL C. MONTENEGRO, EMERSON S. LIMA, MARNE C. DE VASCONCELLOS, ALBERDAN S. SANTOS

    Published 2025-01-01
    “…Abstract In the present study, 5-Hydroxy-2-(Oleoyloxymethyl) -4H-pyran-4-one (KMO 3), and their chelated with Cu(II) and Fe(III) ions were synthesized to explore their inhibitory activity against tyrosinase and cytotoxicity. …”
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  18. 1618

    Source Apportionment of Urban Ammonia and its Contribution to Secondary Particle Formation in a Mid-size European City by Laura Ehrnsperger, Otto Klemm

    Published 2020-11-01
    “…The size-resolved chemical composition of inorganic ions in PM10 was dominated by NH4 + (8.66 µg m−3), followed by NO3 − (3.89 µg m−3), SO4 2− (1.58 µg m−3) and Cl− (1.33 µg m−3). …”
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  19. 1619

    Sol–gel synthesis of TiO2 doped with chromium: photocatalytic degradation of tartrazine by Ana E. Cardozo, Elsa M. Farfán Torres, Graciela V. Morales, Edgardo L. Sham

    Published 2023-12-01
    “…In addition, the introduction of chromium (VI) ions tends to reduce the average size of the particles, increasing the specific surface area and favoring the development of a mesoporous structure. …”
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  20. 1620