Showing 2,881 - 2,900 results of 3,204 for search '"spectroscopy"', query time: 0.06s Refine Results
  1. 2881

    New Sustainable Biosorbent Based on Recycled Deoiled Carob Seeds: Optimization of Heavy Metals Remediation by M. Farnane, A. Machrouhi, A. Elhalil, M. Abdennouri, S. Qourzal, H. Tounsadi, N. Barka

    Published 2018-01-01
    “…The biosorbents were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Boehm titration, and the point of zero charge (pHPZC).…”
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    Article
  2. 2882

    Physicochemical Characterization and In Vivo Evaluation of Amorphous and Partially Crystalline Calcium Phosphate Coatings Fabricated on Ti-6Al-4V Implants by the Plasma Spray Metho... by Estevam A. Bonfante, Lukasz Witek, Nick Tovar, Marcelo Suzuki, Charles Marin, Rodrigo Granato, Paulo G. Coelho

    Published 2012-01-01
    “…Plasma sprayed hydroxyapatite (PSHA) and amorphous calcium phosphate (ACP) surfaces were characterized by scanning electron microscopy (SEM), interferometry (IFM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR). Implants were placed in the radius epiphysis, and the right limb of dogs provided implants that remained for 6 weeks, and the left limb provided implants that remained 12 weeks in vivo. …”
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    Article
  3. 2883

    Electrophoretic Deposition of Chitosan Films Doped with Nd2Ti2O7 Nanoparticles as Protective Coatings against Corrosion in Saline Solutions by M. Martinez-Gomez, A. Quinto-Hernandez, N. S. Flores-Garcia, Jan Mayén, M. Dominguez-Diaz, H. Martinez, J. Porcayo-Calderon, J. G. Gonzalez-Rodriguez, L. Martinez-Gomez

    Published 2019-01-01
    “…According to the FT-IR (Fourier transform infrared spectroscopy), Raman, and XRD (X-ray diffraction) analyses, it was observed that the presence of the nanoparticles modified the properties of the chitosan films, that is, their crystallinity was increased and their moisture absorption capacity was reduced. …”
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    Article
  4. 2884

    Changing Characteristics of Sandstone Pore Size under Cyclic Loading by Jiaguang Kan, Guichen Li, Nong Zhang, Peng Wang, Changliang Han, Shun Wang

    Published 2021-01-01
    “…These characteristics were studied under different pressures, pore diameters, and pore throat size distribution laws using a UTM5540 electronic universal testing machine, magnetic resonance imaging scanning, and low field nuclear magnetic resonance spectroscopy with cyclic loading on yellow sandstone. …”
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    Article
  5. 2885
  6. 2886

    Valorization of Date Pits as an Effective Biosorbent for Remazol Brilliant Blue Adsorption from Aqueous Solution by A. Thiam, K. Tanji, O. Assila, M. Zouheir, Redouane Haounati, A. Arrahli, A. Abeid, S. Lairini, R. Bouslamti, F. Zerouq, A. Kherbeche

    Published 2020-01-01
    “…The characterization of RDP material is investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR). Based on the calculation, the kinetic rate of the adsorption was well modeled by pseudo-second-order and Langmuir isotherm. …”
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    Article
  7. 2887

    Nanoscale ultrafast dynamics in Bi2Te3 thin film by terahertz scanning near-field nanoscopy by Ziyu Huang, Jing Li, Peiyan Li, Lin Du, Mingcong Dai, Jiahua Cai, Zejun Ren, Tianxiao Nie, Xiaojun Wu

    Published 2025-02-01
    “…By utilizing THz scattering-type scanning near-field optical microscopy, we investigated THz time-domain spectroscopy, optical-pump THz probe, and THz emission in TI thin films at nanoscale. …”
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    Article
  8. 2888

    Encapsulation of Hydrogen Peroxide in PVA/PVP Hydrogels for Medical Applications by Natalie Mounayer, Sivan Shoshani, Elena Afrimzon, Taly Iline-Vul, Moris Topaz, Ehud Banin, Shlomo Margel

    Published 2025-01-01
    “…The structural and morphological properties of the hydrogel were characterized using Fourier transform infrared spectroscopy (FTIR), environmental scanning electron microscope analysis (E-SEM), and water-swelling tests. …”
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    Article
  9. 2889

    Sodium cation exchanged zeolites for direct air capture of CO2 by Do Yeong Kim, Wo Bin Bae, Haehyun Min, Kyeong-Hun Ryu, Sungjoon Kweon, Linh Mai Tran, Young Jin Kim, Min Bum Park, Sung Bong Kang

    Published 2025-01-01
    “…This study systematically investigated the CO2 adsorption-desorption performance of the representative zeolites (ZSM-5, Beta, Mordenite and Y) in H- and Na-forms using various analytical methods, including in-situ Diffuse Reflectance Infrared Fourier Transform spectroscopy. Compared to the corresponding H-zeolites, the enhancement of CO2 adsorption capacity by Na+ ions was observed for all the structure-type zeolite adsorbents. …”
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  10. 2890

    Liquid–Solid Triboelectric Nanogenerator‐Based DNA Barcode Detection Biosensor for Species Identification by Wenlong Ma, Jiawei Li, Xiaolin Qu, Shao‘e Sun, Yanan Zhou, Yitong Liu, Peng Wang, Zhongli Sha

    Published 2025-01-01
    “…However, the wide utilization of existing detection biosensors is limited by bulky and expensive instruments, such as Raman spectroscopy and electrochemical station. Herein, a liquid–solid triboelectric nanogenerator (TENG)‐based DNA barcode detection biosensor is proposed, which consists of water flow, fluid channel, and PDMS film attached by specifically designed capture probe. …”
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  11. 2891

    fNIRS neurofeedback facilitates emotion regulation: Exploring individual differences over the ventrolateral prefrontal cortex by Yiwei Li, Sijin Li, Hua Li, Yuyao Tang, Dandan Zhang

    Published 2025-03-01
    “…Participants in the experimental group underwent VLPFCNF training over eight sessions across two consecutive days, while those in the sham group received random signals from functional near-infrared spectroscopy (fNIRS). To investigate individual variability, participants in the experimental group were further categorized as high or low-efficacy groups based on their training efficiency, determined by the regression slope of VLPFC activity over the sessions. …”
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    Article
  12. 2892

    A Study and Comparison of the Preparation of Gadolinium Aluminate Nanoparticles Using γ-Irradiated and Unirradiated Precursors by Tehani I. Al-Muhimeed, Abdullah A. Al-Kahtani, Refaat M. Mahfouz, Mujeeb Khan, M. Rafiq H. Siddiqui

    Published 2018-01-01
    “…The formation of NPs has been confirmed by X-ray diffraction analysis (XRD) and Fourier-transform infrared (FT-IR) spectroscopy. The results indicate towards the formation of an orthorhombic perovskite structure of GdAO3 in the Pbnm space group. …”
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  13. 2893

    In-situ probing of the Fischer-Tropsch reaction on Co single crystal surfaces up to 1 bar by Patrick Lömker, David Degerman, Christopher M. Goodwin, Mikhail Shipilin, Peter Amann, Gabriel L. S. Rodrigues, Fernando Garcia-Martinez, Raffael Rameshan, Jörgen Gladh, Hsin-Yi Wang, Markus Soldemo, Alexander Holm, Steffen Tober, Jan-Christian Schober, Leon Jacobse, Vedran Vonk, Robert Gleißner, Heshmat Noei, Zoltan Hegedues, Andreas Stierle, Christoph Schlueter, Anders Nilsson

    Published 2025-01-01
    “…Here, we report an in-situ X-ray photoelectron spectroscopy study of Co $$\left(0001\right)$$ 0001 and Co( $$10\bar{1}4$$ 10 1 ¯ 4 ), and in-situ high energy surface X-ray diffraction of Co $$\left(0001\right),$$ 0001 , during the Fischer-Tropsch reaction at 0.15 bar - 1 bar and 406 K - 548 K in a H2/CO gas mixture. …”
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  14. 2894

    Synthesis and Pesticidal Activities of 5-(2-Cyclopropylaminopyrimidin-4-yl)-4-(thiophenyl)thiazole Derivatives by Won-Sik Choi, Seok-Woo Nam, Il-Doo Kim, Seung-Han Kim, Kun-Ho Park, In-Kyung Bae, Eun-Sil Park, Hwang-Ju Jeon, Sung-Eun Lee

    Published 2015-01-01
    “…Compounds designated as XIII-6~XV-7 were newly synthesized and their structures were confirmed by 1H- and 13C-NMR spectroscopy. Mosquito larvicidal activities of all the synthesized compounds against C. pipiens pallens were examined and Comp I among them showed the strongest larvicidal activity as 0.513 mM of LC50 value. …”
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  15. 2895

    Tailor-Made, Linear, and “Comb-Like” Polyester-Based Copolymers: Synthesis, Characterization, and Thermal Behavior of Potential 3D-Printing/Electrospinning Candidates by Franco L. Redondo, Mario D. Ninago, Augusto G. O. de Freitas, Cristiano Giacomelli, Andrés E. Ciolino, Marcelo A. Villar

    Published 2018-01-01
    “…Copolymers were characterized by hydrogen nuclear magnetic resonance (1H-NMR), size exclusion chromatography (SEC), and Fourier transform infrared (FTIR) spectroscopy. All polymers exhibited narrow molar masses distributions (Mw/Mn<1.54), and their thermal properties were analyzed by isothermal crystallization kinetics (Avrami’s theory, by using differential scanning calorimetry (DSC)) and by employing modulated thermogravimetric analysis (MTGA). …”
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    Article
  16. 2896

    Development of a Sustainable Flexible Humidity Sensor Based on <i>Tenebrio molitor</i> Larvae Biomass-Derived Chitosan by Ezekiel Edward Nettey-Oppong, Riaz Muhammad, Emmanuel Ackah, Hojun Yang, Ahmed Ali, Hyun-Woo Jeong, Seong-Wan Kim, Young-Seek Seok, Seung Ho Choi

    Published 2025-01-01
    “…Comprehensive characterization of the chitosan film was performed using Fourier-transform infrared (FTIR) spectroscopy, contact angle measurements, and tensile testing, which confirmed its chemical structure, wettability, and mechanical stability. …”
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    Article
  17. 2897

    Morphology, structure, and electrochemical properties of the MnOx@CNTs composite: a study of SEM, EDX, XPS, and CVA methods by P. M. Korusenko, S. N. Nesov, K. E. Ivlev

    Published 2022-04-01
    “…The study of the electronic structure of the nanocomposite, performed by X-ray photoelectron spectroscopy (XPS), showed that manganese is in two chemically nonequivalent states in MnO2-x and in KMnO4 . …”
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  18. 2898

    Microstructural transformation of GO to rGO by ascorbate acid green-agent enhanced using sonication method by Masruroh, Freygieon Ogiek Rizal Sukma, Kormil Saputra, Nandang Mufti, Kusumandari, Anton Prasetyo, Rachmat T Tjahjanto, Dionysius J D H Santjojo

    Published 2025-01-01
    “…Characterization of particle size distribution and band gap was carried out using PSA and UV–vis, while changes in microstructure, crystallization, and morphology were analyzed using XRD, Raman spectroscopy, and SEM/EDX. The results showed that increasing the sonication duration decreased the particle size of rGO significantly, contributing to microstructural transformation. …”
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    Article
  19. 2899

    Study of Highly Stable Nitrogen-Doped a-InGaSnO Thin-Film Transistors by Wenyang Zhang, Li Lu, Chenfei Li, Weijie Jiang, Wenzhao Wang, Xingqiang Liu, Ablat Abliz, Da Wan

    Published 2024-01-01
    “…The X-ray photoelectron spectroscopy analysis (XPS) and low frequency noise (LFN) are employed to study the mechanism of N-doping in a-IGTO TFTs. …”
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    Article
  20. 2900

    Intrinsically anisotropic 1D NbTe4 for self-powered polarization-sensitive photodetection by Huahu Luo, Fafa Wu, Chaowei He, Wanfu Shen, Chunguang Hu, Weina Zhao, Peng Yu, Guowei Yang

    Published 2024-11-01
    “…Angle-resolved polarized Raman spectroscopy, in conjunction with azimuth-dependent reflectance difference microscopy, confirmed that 1D NbTe₄ exhibits intrinsic structural and in-plane optical anisotropy. …”
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    Article