Showing 2,741 - 2,760 results of 3,204 for search '"spectroscopy"', query time: 0.06s Refine Results
  1. 2741

    Exploring Alkali Hydroxide Influence on Calcium Titanate Formation for Application in Biodiesel Catalysts by Ratchadaporn Puntharod, Kittikarnkorn Onsomsuay, Pusit Pookmanee, Jaturon Kumchompoo

    Published 2024-10-01
    “…We delve into the vibrational properties of Ca‒O‒Ti and Ti‒O bonds using Fourier transform infrared spectroscopy (FTIR), confirming the presence of calcium titanate (JCPDS No.42-0423) through X-ray diffractometry (XRD). …”
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  2. 2742

    Preparation and Characterization of Biodegradable Composited Films Based on Potato Starch/Glycerol/Gelatin by Xiaoqing Niu, Qianyun Ma, Shuiling Li, Wenxiu Wang, Yajuan Ma, Hongqian Zhao, Jianfeng Sun, Jie Wang

    Published 2021-01-01
    “…The resulting films were further characterized on the basis of rheological measurements, Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). …”
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  3. 2743

    Etude expérimentale et théorique d’un nouveau composé halogène pnicture Hg$_{12}$Sb$_6 ($Br$_{5,186}$I$_{6,814})$ by Kheit, Messaoud, Merazka, Soumia, Kars, Mohammed, Gómez-Herrero, Adrian, Roisnel, Thierry, Sidoumou, Mohamed

    Published 2022-08-01
    “…The optical band gap was determined as 2,1 eV according to UV${-}$vis diffuse reflectance spectroscopy. Furthermore, the photocatalytic experiments have shown the ability of the $\mathrm{Hg}_{12}\mathrm{Sb}_6$ ($\mathrm{Br}_{5,186}\mathrm{I}_{6,814}$) to degrade rhodamine B (RhB) under solar light radiation. …”
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  4. 2744

    <i>Lilium candidum</i> Extract Loaded in Alginate Hydrogel Beads for Chronic Wound Healing by Ioana Bâldea, Maria-Loredana Soran, Adina Stegarescu, Ocsana Opriș, Irina Kacso, Septimiu Tripon, Alexandra Adascalitei, Iulian George Fericel, Roxana Decea, Ildiko Lung

    Published 2025-01-01
    “…The obtained beads were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Also, the efficiency of extract encapsulation in alginate was determined as being of. …”
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  5. 2745

    A bibliometric analysis of the effects of electronic waste on the environment by M. Maphosa, V. Maphosa

    Published 2022-10-01
    “…By tracing the evolutionary research pathway, it is clear that the research hotspots have shifted focus to e-waste generation, laser-induced breakdown spectroscopy, and circular economy. A total of 141 articles on e-waste and the environment published between 2003 and 2021 were selected for the study. …”
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  6. 2746

    Optimizing ibrutinib bioavailability: Formulation and assessment of hydroxypropyl-β-cyclodextrin-based nanosponge delivery systems by Sunitha Sampathi, Nitiraj Kulkarni, D.V.R.N. Bhikshapathi, Jagadish V. Tawade, Nainaru Tarakaramu, Rzgar Farooq Rashid, Aziz Kubaev

    Published 2025-01-01
    “…Characterization was performed by X-ray diffraction analysis, Fourier Transform Infrared Spectroscopy (FT-IR), and Differential Scanning Calorimetry (DSC), to assess compatibility. …”
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  7. 2747

    Production of novel theranostic nano-vector based on superparamagnetic iron oxide nanoparticles/miR-497 targeting colorectal cancer by Asmaa M. Elfiky, May M. Eid, May El-Manawaty, Zeinab A. Elshahid, Elham Mohamed Youssef, Khaled Mahmoud

    Published 2025-02-01
    “…UV/visible and FTIR spectroscopy, Zeta potential and MTT were used to confirm the allocation of the miR-497 on SPION@Ag@Cs and its cytotoxicity against CRC cell lines. …”
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  8. 2748

    Analysis of the Concentration of Heavy Metals in Khat Grown in Meru County and the Assessment of Their Associated Health Risks by Albert M. Oyugi, Joshua K. Kibet, John O. Adongo

    Published 2024-01-01
    “…Therefore, the motivation behind this contribution is to determine the levels of six heavy metals, namely, cadmium (Cd), copper (Cu), chromium (Cr), lead (Pb), iron (Fe), and nickel (Ni) in consumable Meru khat samples, compare these levels with the permissible limits of World Health Organization (WHO) in order to predict associated health risks, and to estimate the noncarcinogenic risks of these metals by total health quotient (THQ) and health index (HI) on khat consumers. 1.0 g of dry ground khat samples was digested in 0.05 M HCl and allowed to stand for 5 hours before being analyzed for heavy metals using inductively coupled plasma atomic emission spectroscopy (ICP-AES). The mean heavy metal concentrations (mg/kg) in dry khat samples of six toxic heavy metals were Cd (7.81 ± 1.56), Cr (15.98 ± 2.22), Cu (15.81 ± 2.84), Fe (97.35 ± 32.67), Ni (0.37 ± 0.02), and Pb (32.36 ± 9.95). …”
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  9. 2749

    Resolving the electronic ground state of La3Ni2O7-δ films by Xiaolin Ren, Ronny Sutarto, Xianxin Wu, Jianfeng Zhang, Hai Huang, Tao Xiang, Jiangping Hu, Riccardo Comin, Xingjiang Zhou, Zhihai Zhu

    Published 2025-02-01
    “…Through X-ray absorption spectroscopy, we reveal the influence of oxygen ligands on the electronic ground states of the Ni ions, displaying a charge transfer nature akin to cuprate but with distinct orbital configurations. …”
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  10. 2750

    Tannin with sodium carbonate: A single additive for poured earth concrete with tropical soils by Lily Walter, Gildas Medjigbodo, Yannick Estevez, Laurent Linguet, Ouahcène Nait-Rabah

    Published 2025-03-01
    “…However, tannin+Na2CO3 induced faster solidification, which was attributed to the formation of ferric tannate observed by infrared spectroscopy (ATR-FTIR). This study paves the way for designing poured earth with tropical soil using a single, largely bio-sourced additive: tannin+Na2CO3.…”
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  11. 2751

    Metasomatism and REE mineralization of the Zilair Formation sedimentary rocks in the Khudolaz complex gabbro massif exocontact zone (Chebarkul area, Southern Urals) by Evgeny I. Mikheev, Ildar R. Rakhimov, Elena O. Shaparenko, Elena I. Soroka

    Published 2025-01-01
    “…Minerals were studied using optical and scanning electron microscopy; the bulk composition of the rocks was determined by XRF and ICP-MS analytical techniques; vapor-liquid fluid inclusions in calcite were studied using microthermometry and Raman spectroscopy; the isotopic composition of carbon and oxygen was determined for metasedimentary silicate-carbonate metasomatites. …”
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  12. 2752

    In Vitro Studies of Bacterial Cellulose and Magnetic Nanoparticles Smart Nanocomposites for Efficient Chronic Wounds Healing by Bianca Galateanu, Mihaela-Cristina Bunea, Paul Stanescu, Eugenia Vasile, Angela Casarica, Horia Iovu, Anca Hermenean, Catalin Zaharia, Marieta Costache

    Published 2015-01-01
    “…After purification and drying, the membranes were characterized by Raman spectroscopy and X-ray diffraction to reveal the presence of magnetite within the bacterial cellulose matrix. …”
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  13. 2753

    Effect of Preparation Conditions of Fe@SiO<sub>2</sub> Catalyst on Its Structure Using High-Pressure Activity Studies in a 3D-Printed SS Microreactor by Meric Arslan, Sujoy Bepari, Juvairia Shajahan, Saif Hassan, Debasish Kuila

    Published 2025-01-01
    “…They were characterized by N<sub>2</sub> physisorption, H<sub>2</sub> temperature-programmed reduction (H<sub>2</sub>-TPR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron microscopy (XPS), and thermogravimetric analysis–differential scanning calorimetry (TGA-DSC) techniques. …”
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  14. 2754

    Intravascular Residence Time Determination for the Cyanide Antidote Dimethyl Trisulfide in Rat by Using Liquid-Liquid Extraction Coupled with High Performance Liquid Chromatography by Deepthika De Silva, Steven Lee, Anna Duke, Siva Angalakurthi, Ching-En Chou, Afshin Ebrahimpour, David E. Thompson, Ilona Petrikovics

    Published 2016-01-01
    “…These studies represent the first report on the intravascular residence time determinations for the cyanide antidote dimethyl trisulfide (DMTS) in a rat model by using high performance liquid chromatography coupled with ultraviolet absorption spectroscopy (HPLC-UV). The newly developed sample preparation included liquid-liquid extraction by cyclohexanone. …”
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  15. 2755

    Folded pseudochiral Fermi surface in 4Hb-TaSe2 from band hybridization with a charge density wave by Matthew D. Watson, Andrea Tonelli, Mugerabe Zerabza, Sam Hayward, Rebecca Wilkinson, Ettore Carpene, Cephise Cacho, Valentina De Renzi, Simon Crampin, Enrico Da Como

    Published 2025-02-01
    “…Using selective area angle resolved photoemission spectroscopy on the T termination combined with ab initio calculations, we unveil a finely structured Fermi surface arising from band folding in the reconstructed Brillouin zone caused by the CDW star clusters. …”
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  16. 2756

    Highly conductive graphene@phosphotungstic acid nanocomposite for sensitive electrochemical detection of acetaminophen based on analysis induction strategy in foods by Ruiyu He, Jingjie Zhang, Shixin Li, Yuzhen Yang, Yaru Xu, Zhixiang Xu, Yufeng Sun

    Published 2025-03-01
    “…The electrochemical performance of the obtained sensor (GR@PWA/GCE) was investigated by cyclic voltammetry, differential pulse voltammetry and electrochemical impedance spectroscopy. The calculated effective active area of GR@PWA/GCE was 2.22 times than that of bare glassy carbon electrode. …”
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  17. 2757

    Experimental Solution of Chitosan and Nanochitosan on Wettability in Root Dentine: In Vitro Model Prior Regenerative Endodontics by Fernando Arias Alvarado, Maira Rivero Iriarte, Freddy Jordan Mariño, Sara Quijano-Guauque, León D. Pérez, Yolima Baena, Claudia García-Guerrero

    Published 2021-01-01
    “…The wettability analysis calculated the contact angle (θ) between a drop of a blood-like and root dentinal surface; topographic characterization with scanning electron microscopy (SEM) quantified the diameter and number of tubules per area; spectroscopy infrared analyses (IR-S) identified chemical changes in the inorganic (phosphate/carbonate) and organic phase (amide/methyl). …”
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  18. 2758

    Application of synthesized Fe3O4@Gelatin nanoparticles on interfacial properties and enhanced oil recovery by Hossein Ghalenavi, Abdolhossein Hemmati-Sarapardeh, Mahin Schaffie, Saeid Norouzi-Apourvari

    Published 2025-01-01
    “…These NPS were characterized by Transmission Electron Microscopy (TEM), X-ray diffraction (XRD), and Fourier-transform infrared spectroscopy (FTIR). Afterward, various experiments including contact angle, interfacial tension (IFT), and micromodel flooding were performed to evaluate the capability of Fe3O4@Gelatin NPs for EOR application. …”
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  19. 2759

    Film Properties, Water Retention, and Growth Promotion of Derivative Carboxymethyl Cellulose Materials from Cotton Straw by Yongni Wu, Mengfan Yu, Yanju Li, Yue Wu, Ziqiang Shao, Yanhua Liu

    Published 2021-01-01
    “…Their chemical structure, film morphology, water retention, biodegradability, and growth promotion were investigated with infrared spectroscopy (IR), scanning electron microscope (SEM), and field experiments. …”
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  20. 2760

    Effective Connectivity Study Guiding the Neuromodulation Intervention in Figurative Language Comprehension Using Optical Neuroimaging by Tania Alexandra Couto, Shiyang Xu, Paulo Armada da Silva, Chenggang Wu, Karl Neergaard, Meng-Yun Wang, Juan Zhang, Yutao Xiang, Zhen Yuan

    Published 2020-01-01
    “…The method is aimed at mapping significant causal relationships across language brain networks, captured by functional near-infrared spectroscopy measurements (fNIRS): (i) definition of regions of interest (ROIs) based on significant channels extracted from spatial activation maps; (ii) inspection of significant causal relationships in temporal resolution, exploring the experimental task agreement; and (iii) early identification of stronger causal relationships that guide neuromodulation intervention, targeting impaired connectivity pathways. …”
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