Showing 3,241 - 3,260 results of 4,095 for search '"spectroscopy"', query time: 0.08s Refine Results
  1. 3241

    Adsorption Performance of La(III) and Y(III) on Orange Peel: Impact of Experimental Variables, Isotherms, and Kinetics by Li Liu, Yunzhang Rao, Changshun Tian, Tao Huang, Jiacheng Lu, Meidao Zhang, Min Han

    Published 2021-01-01
    “…The adsorption properties of orange peel are characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), and the participation of hydroxyl and other oxygen-containing groups that promote the physical-chemical interaction is verified. …”
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  2. 3242

    2-Amino-6-methylbenzothiazole as corrosion inhibitor for low carbon steel in acidic solution: Experimental and theoretical studies by Klodian Xhanari, Muhamed Farruku, Avni Berisha, Bujar Seiti, Kledi Xhaxhiu, Efrosini Kokalari, Alketa Lame

    Published 2025-01-01
    “…The corrosion susceptibility of S235 steel samples in 1 M HCl solution, with and without addition of 2-amino-6-methylbenzothiazole (AMBT) was evaluated using weight loss (WL), chronopotentiometry, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PD) techniques. …”
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  3. 3243

    Preparation and Characterization of Auricularia cornea Ehrenb Polysaccharide-Zn Complex and Its Hypoglycemic Activity through Regulating Insulin Resistance in HepG2 Cells by Tingting Liu, Shanshan Zhang, Nan Wang, Xinle Xu, Hongcheng Liu, Dawei Wang, Yanrong Zhang

    Published 2021-01-01
    “…Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), nuclear magnetic resonance (NMR), and other means are used to analyze the physical-chemical properties and structure of ACEP and ACEP-Zn, to investigate the inhibition of α-glycosidase and α-amylase enzymes, and to explore its effects on the glucose metabolism of insulin-resistant HepG2 cells. …”
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  4. 3244

    Water-mediated ion transport in an anion exchange membrane by Zhongyang Wang, Ge Sun, Nicholas H. C. Lewis, Mrinmay Mandal, Abhishek Sharma, Mincheol Kim, Joan M. Montes de Oca, Kai Wang, Aaron Taggart, Alex B. Martinson, Paul A. Kohl, Andrei Tokmakoff, Shrayesh N. Patel, Paul F. Nealey, Juan J. de Pablo

    Published 2025-01-01
    “…In this work, we use two-dimensional infrared spectroscopy and semiclassical simulations to examine how water molecules are arranged into successive solvation shells, and we explain how that structure influences the dynamics of bromide ion transport processes in polynorbornene-based materials. …”
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  5. 3245

    Substituted 4-Acyl-5-methyl-2-phenyl-pyrazol-3-one-phenylhydrazones with Antioxidant Properties: X-Ray Crystal and Spectroscopic Studies by Omoruyi G. Idemudia, Anthony I. Okoh, Alexander P. Sadimenko, Eric C. Hosten, Omobola O. Okoh

    Published 2017-01-01
    “…Furthermore they have been characterized by elemental analysis, FTIR, 13C and 1H NMR, and mass-spectroscopy techniques. Both phenylhydrazone Schiff bases crystallize in a triclinic crystal system, each with a space group of P-1 (number 2) having short intramolecular N3—H3…O1 hydrogen interaction between the first hydrazine hydrogen H3 and the pyrazolone oxygen O1. …”
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  6. 3246

    Influence of Degree of Dispersion of Noncovalent Functionalized Graphene Nanoplatelets on Rheological Behaviour of Aqueous Drilling Fluids by Arif Ibrahim, Syahrir Ridha, Asna Amer, Radzi Shahari, Tarek Ganat

    Published 2019-01-01
    “…Dispersion of graphene nanoplatelets was achieved through noncovalent functionalisation by means of surfactant attachment. UV-visible spectroscopy was employed to analyze the dispersion of GNP in aqueous solution. …”
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  7. 3247

    Kinetic and isotherm studies of nickel and cadmium ions adsorption onto Clay-Chitosan composite by Rachid Et-Tanteny, Ibrahim Allaoui, Imad Manssouri, Bouchta El Amrani, Khalid Draoui

    Published 2025-01-01
    “…The Ni (II) and Cd (II) concentrations were precisely determined using inductively coupled plasma atomic emission spectroscopy (ICP-AES). The obtained results revealed that the maximum adsorbed quantities obtained were 153.086 mg/g for Ni (II) and 61.093 mg/g for Cd (II), demonstrating the excellent performance of the composite. …”
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  8. 3248

    Effect of precursor molarities on structural correlation with optoelectronic property of Zn2SnO4 nanostructured thin films by Isha Arora, Praveen Kumar Sharma, Harkawal Singh, Vanasundaram Natarajan

    Published 2025-06-01
    “…The grain size has wide variations with a majority of large sized grains for highly precursor molarity. Raman spectroscopy observes the characteristic peaks of the cubic inverse spinel structure of ZTO and variation of their intensities with the precursor concentration. …”
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  9. 3249

    Investigation of Structural, Electrical, and Vibrational Properties of Bi1.98A0.02Fe4O9 (A = Ba, Ce) Multiferroic Ceramics by Ashwini Kumar, Poorva Sharma, Nikhil Bhardwaj, Jingyou Tang, Guolong Tan

    Published 2021-01-01
    “…The crystal structure of the prepared samples has been characterized by means of X-ray diffraction and Raman scattering spectroscopy. All the obtained XRD peaks can be indexed to the orthorhombic Pbam structure and reveal the formation of Bi2Fe4O9. …”
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  10. 3250

    Genomic prediction of forage nutritive value in perennial ryegrass by Agnieszka Konkolewska, Michael Dineen, Rachel Keirse, Patrick Conaghan, Dan Milbourne, Susanne Barth, Aonghus Lawlor, Stephen Byrne

    Published 2024-12-01
    “…Methods Near infra‐red reflectance spectroscopy calibrations for OMD and NDF were developed and used to phenotype a spaced plant training population of n = 1606, with matching genotype‐by‐sequencing data, for developing genomic selection models. …”
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  11. 3251

    High-intensity focused ultrasound: an innovative approach for micro-manipulation of demineralized dentine by Sheetal Maria Rajan, Barsha Shrestha, Amr Fawzy

    Published 2025-01-01
    “…Results Advanced characterization techniques including scanning electron microscopy (n = 5/group), Raman spectroscopy, atomic force microscopy, and nano-indentation (n = 5/group), demonstrated HIFU’s effectiveness in removing demineralized collagen-fibrils. …”
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  12. 3252

    Vitamin D Toxicity Managed with Peritoneal Dialysis by Krystel Feghali, Kostas Papamarkakis, Jackson Clark, Neha Malhotra, Lanu Stoddart, Ibitoro Osakwe

    Published 2021-01-01
    “…Workup for his hypercalcemia led to the diagnosis of vitamin D toxicity as shown by a level greater than 200 ng/dL (Ref: 20–50 ng/mL) was confirmed by liquid chromatography-mass spectroscopy. Cornerstone medical management of hypercalcemia was provided which included aggressive intravenous fluid hydration, intravenous diuretics, calcitonin, bisphosphonate, and corticosteroid therapy. …”
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  13. 3253

    Fine tuning enzyme activity assays for monitoring the enzymatic hydrolysis of PET by Krisztina Boros, Blanka Eszter Nagy, Raluca Bianca Tomoiagă, Róbert Tőtős, Monica Ioana Toșa, Csaba Paizs, László Csaba Bencze

    Published 2025-01-01
    “…The other predominantly employed UV-spectroscopy assay was also improved in terms of employed wavelength and medium extinction coefficient of the three aromatic degradation products, while being cross-validated by the improved HPLC method. …”
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  14. 3254

    Unravelling the Methylene Blue Adsorption Mechanism on Doped and Nondoped Polyaniline: A Combined Molecular Modeling and Experimental Investigation by Souad Djellali, Amani Touati, Abderrahmane Semmeq, Maya Kebaili, Michael Badawi, Adrián Bonilla-Petriciolet

    Published 2022-01-01
    “…Experimental adsorption studies at different operating conditions were performed to complement the mechanism analysis of this adsorption system. Infrared spectroscopy studies and ab initio calculations showed the important role of π-π stacking and van der Waals interactions for the dye adsorption on PANI. …”
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  15. 3255

    Development of a Multifunctional Chitosan-Based Composite Film from Crab Shell (<i>Portunus segnis</i>) and Algae (<i>Ulva lactuca</i>) with Enhanced Antioxidant and Antimicrobial... by Imen Zaghbib, Johar Amin Ahmed Abdullah, Alberto Romero

    Published 2024-12-01
    “…Fourier-transform infrared spectroscopy revealed intermolecular interactions between ULP’s polyphenolic compounds and the chitosan matrix, enhancing the films’ structural integrities. …”
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  16. 3256

    Potential use of the Maroua (Far North, Cameroon) river sand as construction materials and degreasing agent for earthenware ceramics by Mahamad Nafissatou, Bertin Pagna Kagonbé, Arnaud Ghislain Anombogo Mouthe, Bouba Nafissa, Viviane Djaoyang Bakaïné, Etienne Yanné, Likiby Boubakar, Armand Kagou Dongmo

    Published 2025-01-01
    “…Fieldwork and laboratory analyses have been performed to elicit their properties using standard methods of physical-textural analysis and X-ray fluorescence spectroscopy. Gradation parameters have been deduced mathematically. …”
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  17. 3257

    Fabrication of a poly(m‑aminophenol)/3-aminopropyl triethoxysilane/graphene oxide ternary nanocomposite for removal of Cu(II) from aqueous solution by Abeer S. Elsherbiny, Mohamed E. Elhalwagy, Ali H. Gemeay

    Published 2025-01-01
    “…The chemical interactions between Cu(II) versus oxygen and nitrogen of the functional groups on the surface were demonstrated by X-ray Electron Spectroscopy (XPS). Five cycles of adsorption and desorption of Cu(II) from the prepared composite were carried out with a loss of only 6.3% of its adsorption capacity.…”
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  18. 3258

    Defect state enhanced nonlinear absorption and optical limiting behaviour of erbium doped silver molybdate nanostructures by B. Binish, K. Mani Rahulan, T. C. Sabari Girisun, Nisha S. Panicker

    Published 2025-01-01
    “…The optical properties studied using UV–Vis absorption Spectroscopy exhibited maximum absorption in UV region and the absorption in the visible region is found to increase with the addition of Er ions into the host lattice. …”
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  19. 3259

    Advancing Graphene Synthesis: Low-Temperature Growth and Hydrogenation Mechanisms Using Plasma-Enhanced Chemical Vapor Deposition by Šarūnas Meškinis, Algirdas Lazauskas, Šarūnas Jankauskas, Asta Guobienė, Rimantas Gudaitis

    Published 2024-12-01
    “…Graphene films were synthesized at temperatures ranging from 700 °C to as low as 400 °C by varying methane (25–100 sccm) and hydrogen (25–100 sccm) gas flow rates under 10–20 mBar pressures. Raman spectroscopy revealed structural transitions: pristine graphene grown at 700 °C exhibited strong 2D peaks with an I(2D)/I(G) ratio > 2, while hydrogenated graphene synthesized at 500 °C showed increased defect density with an I(D)/I(G) ratio of ~1.5 and reduced I(2D)/I(G) (~0.8). …”
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  20. 3260

    Design of 3D Hybrid Plant Extract/Marine and Bovine Collagen Matrixes as Potential Dermal Scaffolds for Skin Wound Healing by Aida Lahmar, Maroua Rjab, Fairouz Sioud, Mouna Selmi, Abir Salek, Soumaya Kilani-Jaziri, Leila Chekir Ghedira

    Published 2022-01-01
    “…Acid-soluble collagen from two sources, marine and bovine, were extracted and characterized physiochemically using Fourier transform infrared spectroscopy (FTIR) and SDS-PAGE. Our results confirmed that the extracted collagens were mainly composed of collagen type I with slight molecular structure differences. …”
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