Showing 3,101 - 3,120 results of 3,204 for search '"spectroscopy"', query time: 0.09s Refine Results
  1. 3101

    Influence of Ni, Al, W doping on microstructure, corrosion and wear resistance of HVOF spraying Fe-based amorphous alloy coatings by Chengwu Zhang, Lei Xie, Qiang Li, Guan Zhang, Chuntao Chang, Hongxiang Li, Xu Ma, Lin Liu

    Published 2025-03-01
    “…Mott–Schottky analysis and X-ray photoelectron spectroscopy results showed that the W-doped AACs forming the densest and thickest passivation films, ascribed to an increased fraction of protective and stable low-valent metal oxides (Fe2+/Cr3+/Mo4+), enhanced corrosion resistance by promoting film growth and degradation processes. …”
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  2. 3102

    Anti-Inflammatory, Antithrombotic, and Antioxidant Properties of Amphiphilic Lipid Bioactives from Shrimp by Alexandros Tsoupras, Paschalis Cholidis, Dimitrios Kranas, Evangelia Aikaterini Galouni, Anna Ofrydopoulou, Pavlos Efthymiopoulos, Katie Shiels, Sushanta Kumar Saha, George Z. Kyzas, Chryssa Anastasiadou

    Published 2024-12-01
    “…Structural analyses were performed using ATR-FTIR spectroscopy, while LC-MS was used to elucidate the fatty acid composition and overall structure of polar lipids (PLs) present in shrimp TAC extracts. …”
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  3. 3103

    Photoelectrochemical characterization and photocatalytic properties of mesoporous <mml:math alttext="${{{ext{TiO}}_{ext{2}} } mathord{left/ {vphantom {{{ext{TiO}}_{ext{2}} } {{ext...

    Published 2006-01-01
    “…The structural and optical properties of these films were characterized using SEM, low-angle XRD, and UV/Vis spectroscopy, hexane adsorption investigation. Band gap energy and the position of flatband potentials were estimated by photoelectrochemical measurements. …”
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  4. 3104

    Coagulants for water based on activated aluminum alloys by R.G. Sarmurzina, G.I. Boiko, B.K. Kenzhaliyev, U.S. Karabalin, N.P. Lyubchenko, P.V. Kenyaikin, Zh.B. Ilmaliyev

    Published 2023-10-01
    “…In addition, the goal is solving environmental issues associated with improving the drinking water quality and related to environmental pollution with wastewater.METHODS: The microstructures, phase components, and elemental compositions of alloys and reaction products were studied by scanning electron microscopy/energy dispersive X-ray spectroscopy. The thermal effects of alloys were investigated usin thermogravimetry methods. …”
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  5. 3105

    Adsorption of Anionic Surfactants onto Alumina: Characteristics, Mechanisms, and Application for Heavy Metal Removal by Thi Minh Thu Nguyen, Thi Phuong Thao Do, Thi Sim Hoang, Ngoc Viet Nguyen, Huy Dong Pham, Trung Dung Nguyen, Thi Ngoc Mai Pham, Thanh Son Le, Tien Duc Pham

    Published 2018-01-01
    “…Adsorption mechanisms were disused in detail on the basis of adsorption isotherm, the change in surface charge, and the change in functional surface groups by Fourier-transform infrared spectroscopy (FTIR). The application of surfactant adsorption onto Al2O3 to remove cadmium ion (Cd2+) was also studied. …”
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  6. 3106

    An HST Transmission Spectrum of the Closest M Dwarf Transiting Rocky Planet LTT 1445Ab by Katherine A. Bennett, David K. Sing, Kevin B. Stevenson, Hannah R. Wakeford, Zafar Rustamkulov, Natalie H. Allen, Joshua D. Lothringer, Ryan J. MacDonald, Nathan J. Mayne, Guangwei Fu

    Published 2025-01-01
    “…We use Hubble Space Telescope/Wide Field Camera 3 transmission spectroscopy with the G280 and G141 grisms to study the spectrum of LTT 1445Ab between 0.2 and 1.65 μ m. …”
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  7. 3107

    Laser interaction with undercritical foams of different spatial structures by J. Limpouch, V. Tikhonchuk, O. Renner, Sh. Agarwal, T. Burian, J. Červenka, J. Dostál, R. Dudžák, D. Ettel, A. Gintrand, L. Hudec, L. Juha, O. Klimo, M. Krupka, M. Krus, T. Lastovicka, R. Liska, W. Nazarov, S. K. Singh, M. Šilhavík, S. Weber

    Published 2025-01-01
    “…The spatial–temporal evolution of X-ray emission is observed using an X-ray streak camera, electron and ion temperatures are measured by X-ray spectroscopy, and hot-electron production is characterized by monochromatic X-ray imaging. …”
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  8. 3108

    Utilizing ultrasound for the extraction of polysaccharides from the tuber of Typhonium giganteum Engl.: Extraction conditions, structural characterization and bioactivities by Xi Peng, Jing-Ya Wang, Kui-Xu Gao, Zhi-Kun Wang, Qiao-Ling Deng, Yao Wang, Mei-Bian Hu, Yu-Jie Liu

    Published 2025-02-01
    “…No obvious difference was found in the Fourier transform infrared spectroscopy analysis of TGEP-U and TGEP-H. The Congo red and Circular dichroism tests demonstrated that TGEP-U and TGEP-H had non-three helical structure. …”
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  9. 3109

    Preparation of Tragopogon graminifolius-loaded electrospun nanofibers and evaluating its wound healing activity in a rat model of skin scar by Leila Almasi, Elham Arkan, Mohammad Hosein Farzaei, Amin Iranpanah, Cyrus Jalili, Fatemeh Abbaszadeh, Faranak Aghaz, Sajad Fakhri, Javier Echeverría

    Published 2025-01-01
    “…[Asteraceae] (TG), also called “Sheng” in traditional Iranian medicine, is one of the most efficacious plants for treating various skin injuries due to its several pharmacological and biological effects like anti-inflammatory and antioxidant properties.PurposeIn the present study, our objective was to assess the wound-healing activity of PVA/PEO/CS nanofibers containing TG in a rat model of excision wound repair.MethodsSynthesized nanofibers from PVA, PEO, and CS were done by the electrospinning method and confirmed by scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FT-IR). The release tests of nanofibers were assessed through the UV-visible method at different time intervals, which were conducted for about 60 h. …”
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  10. 3110

    Solar-driven production of renewable chemicals via biomass hydrogenation with green methanol by Guangyu Chen, Cenfeng Fu, Wenhua Zhang, Wanbing Gong, Jun Ma, Xiaomin Ji, Lisheng Qian, Xuefei Feng, Chuansheng Hu, Ran Long, Yujie Xiong

    Published 2025-01-01
    “…By combining in situ soft X-ray absorption spectroscopy with theoretical calculations, we successfully identify the dynamic evolution of Cu sites along with the biomass hydrogenation and methanol oxidation, where the tandem process is enabled by the photogenerated electrons and holes to complete a chemical cycle. …”
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  11. 3111

    RETRACTED ARTICLE: Synthesis of silver nanoparticles using Plantago lanceolata extract and assessing their antibacterial and antioxidant activities by Muhammad Zahir Shah, Zheng-Hui Guan, Ala Ud Din, Amjad Ali, Ata Ur Rehman, Kashif Jan, Shah Faisal, Shah Saud, Muhammad Adnan, Fazli Wahid, Saud Alamri, Manzer H. Siddiqui, Shamsher Ali, Wajid Nasim, Hafiz Mohkum Hammad, Shah Fahad

    Published 2021-10-01
    “…The existence of nanoparticles (NPs) was confirmed by color shift, atomic force microscopy (AFM), and UV–Vis’s spectroscopy. The FT-IR analysis indicated the association of biomolecules (phenolic acid and flavonoids) to reduce silver (Ag+) ions. …”
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  12. 3112

    Eco-friendly alginate/PCL-TiO2 hybrid biocomposites: Preparation, properties, and methylene blue photodegradation by Bunga Fisikanta Bukit, Agus Wedi Pratama, Erna Frida, Bakti Berlyanto Sedayu, Dina Fransiska, Deni Purnomo, Emma Rochima, Istiqomah Rahmawati, Sona Suhartana, Firda Aulya Syamani

    Published 2025-01-01
    “…XRD analysis of the composites PA, PA-Ti1, PA-Ti3, and PA-Ti5 revealed an orthorhombic to tetragonal semicrystalline structure after added TiO2. FT-IR spectroscopy show sharp peak at 1721 cm⁻¹ represents C = O vibration, while characteristic CH stretching vibrations of PCL are evident at 2800–2900 cm-1. …”
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  13. 3113
  14. 3114

    Adsorbate-driven dynamic active sites in stannosilicate zeolites by Xianfeng Yi, Yao Xiao, Changjiu Xia, Fengqing Liu, Yujia Liu, Yu Hui, Xin Yu, Yucai Qin, Wei Chen, Zhiqiang Liu, Lijuan Song, Anmin Zheng

    Published 2025-01-01
    “…In this study, a dynamic transformation of framework Sn−O−Si sites to Sn−OH/Si−OH pairs and subsequently a pseudo-Brønsted acid in stannosilicate zeolites upon molecular adsorption, which is analogous to various adsorbates/reactants under working conditions, was identified by solid-state nuclear magnetic resonance (NMR) spectroscopy for the first time, which challenges the widespread assumption that the active center structures remain rigid/stable during the catalytic process. …”
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  15. 3115

    Unveiling the charge density wave mechanism in vanadium-based Bi-layered kagome metals by Yi-Chen Yang, Soohyun Cho, Tong-Rui Li, Xiang-Qi Liu, Zheng-Tai Liu, Zhi-Cheng Jiang, Jian-Yang Ding, Wei Xia, Zi-Cheng Tao, Jia-Yu Liu, Wen-Chuan Jing, Yu Huang, Yu-Ming Shi, Soonsang Huh, Takeshi Kondo, Zhe Sun, Ji-Shan Liu, Mao Ye, Yi-Lin Wang, Yan-Feng Guo, Da-Wei Shen

    Published 2024-09-01
    “…Here, employing micro-focusing angle-resolved photoemission spectroscopy (μ-ARPES) and first-principles calculations, we systematically studied the unique CDW order in vanadium-based bi-layered kagome metals by comparing ScV6Sn6 with its isostructural counterpart YV6Sn6, which lacks a CDW ground state. …”
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  16. 3116

    A dextrorotatory residues-incorporated bioactive dodecapeptide against enterohemorrhagic Escherichia coli by Ping Zeng, Xuemei Yang, Kwok-Yin Wong, Sheng Chen, Kin-Fai Chan, Sharon Shui Yee Leung, Lanhua Yi

    Published 2023-06-01
    “…Methods: Spatial conformation of synthetic peptide zp39 (GIIAGIIiKIKk-NH2, lowercase letters indicate dextrorotatory amino acids) was predicted by PEPstrMOD and its secondary structure was further determined by circular dichroism (CD) spectroscopy. Then, standard E. coli O157:H7 strain ATCC 43888 was used to evaluate the bioactivity of zp39. …”
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  17. 3117

    Productive performance in Italian Mediterranean buffaloes after partially replacing dietary starch with simple sugars by Roberta Matera, Gabriele di Vuolo, Giuseppina Pedota, Luca de Luise, Mariateresa Marra, Luca Borzacchiello, Ludovica Capoluongo, Gianluca Neglia

    Published 2023-11-01
    “…Individual milk yield was recorded daily, and 15 days apart, an individual milk sample was collected for milk quality analysis (fat, protein, casein, lactose, urea, β- hydroxybutyrate [BHB] and fatty acids profile) through mid-infrared spectroscopy (Milkoscan FT6000®, Foss Electric). Data were analyzed through a mixed ANOVA. …”
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  18. 3118

    Influence of particle size on NIR spectroscopic characterization of sorghum biomass for the biofuel industry by Md Wadud Ahmed, Carlos A. Esquerre, Kristen Eilts, Dylan P. Allen, Scott M. McCoy, Sebastian Varela, Vijay Singh, Andrew D.B. Leakey, Mohammed Kamruzzaman

    Published 2025-01-01
    “…NIR spectroscopy is a rapid and accurate green technology for high-throughput biomass characterization, including sorghum (Sorghum bicolor), a promising energy crop for the biofuel industry. …”
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  19. 3119

    New Dihydro OO'Bis(Salicylidene) 2,2' Aminobenzothiazolyl Borate Complexes: Kinetic and Voltammetric Studies of Dimethyltin Copper Complex with Guanine, Adenine, and Calf Thymus DN...

    Published 2006-01-01
    “…All complexes have been thoroughly characterized by elemental analysis, and IR, NMR, EPR, and UV-Vis spectroscopy and conductance measurements. The spectroscopic data support square planar environment around the <mml:math alttext="chem{Cu^{II}}"> <mml:msup> <mml:mtext>Cu</mml:mtext> <mml:mrow> <mml:mtext>II</mml:mtext> </mml:mrow> </mml:msup> </mml:math> atom, while the <mml:math alttext="chem{Sn^{IV}}"> <mml:msup> <mml:mtext>Sn</mml:mtext> <mml:mrow> <mml:mtext>IV</mml:mtext> </mml:mrow> </mml:msup> </mml:math> atom acquires pentacoordinate geometry. …”
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  20. 3120

    A Novel Therapeutic Calcium Peroxide Loaded Injectable Bio-adhesive Hydrogel Against Periodontitis by Shaojie Dong, Yukun Mei, Yuwei Zhang, Wenqing Bu, Yifei Zhang, Changjie Sun, Rui Zou, Lin Niu

    Published 2025-02-01
    “…Materials and Methods: Gelatin-oxidized dextran hydrogel loaded with calcium peroxide and penicillin (CP-P hydrogel) was synthesized and characterized using Universal mechanical testing machine, Fourier transform infrared spectroscopy, swelling test, and dissolved oxygen meter. …”
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