Showing 3,341 - 3,360 results of 4,095 for search '"spectroscopy"', query time: 0.08s Refine Results
  1. 3341

    Vacuum electrospray deposition for face-on orientation and interface preservation in organic photovoltaics by Younjoo Lee, Junkyeong Jeong, Kwanwook Jung, Jeihyun Lee, Yungsik Youn, Soohyung Park, Hyunbok Lee, Yeonjin Yi

    Published 2025-01-01
    “…As a result, the VESD OPVs demonstrated enhanced PCE and extended operational lifetimes compared to their SC counterparts. Impedance spectroscopy analysis confirmed that the VESD OPVs possessed significantly higher electron mobility and longer electron lifetimes, indicating reduced charge traps and improved charge dynamics. …”
    Get full text
    Article
  2. 3342

    Batch biosorption studies of ammonical nitrogen (NH3-N) ions from aqueous solutions using the ubiquitous bacteria Klebsiella sp.: equilibrium, kinetic, and thermodynamic studies by Fadaa Alown, Fuad Ameen, Ashiwin Vadiveloo

    Published 2025-01-01
    “…We used an extensive range of analytical techniques, such as Scanning Electron Microscopy, Xray diffraction, Brunauer-Emmett-Teller analysis, Transmission Electron Microscopy, and Fourier-Transform Infrared Spectroscopy, to confirm the accuracy of our results. …”
    Get full text
    Article
  3. 3343

    “Pillaring Effects” in Cross-Linked Cellulose Biopolymers: A Study of Structure and Properties by Inimfon A. Udoetok, Lee D. Wilson, John V. Headley

    Published 2018-01-01
    “…X-ray diffraction (XRD) and 13C NMR spectroscopy indicate that cellulose adopts a one-chain triclinic unit cell structure (P1 space group) with gauche-trans (gt) and trans-gauche (tg) conformations of the glucosyl linkages and hydroxymethyl groups. …”
    Get full text
    Article
  4. 3344

    Modification in Physicochemical, Structural and Digestive Properties of Potato Starch During Heat-Moisture Treatment Combined with Microwave Pre- and Post-Treatment by Chunli Deng, Oksana Melnyk, Tatyana Marenkova, Yanghe Luo

    Published 2022-07-01
    “…The light microscopy, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) were used to determine the structural properties of starch. …”
    Get full text
    Article
  5. 3345

    Biomolecular Triconjugates Formed between Gold, Protamine, and Nucleic Acid: Comparative Characterization on the Nanoscale by Robert K. DeLong, Lisa Cillessen, Chris Reynolds, Adam Wanekaya, Tiffany Severs, Kartik Ghosh, Michael Fisher, Stephanie Barber, John Black, Ashley Schaeffer, Kristin J. Flores

    Published 2012-01-01
    “…Here, nucleic acid conjugates with protamine and gold nanoparticles (GNP) were characterized comparatively in the nanorange of concentration by UV/Vis NanoDrop spectroscopy, fluorimetry, and gel electrophoresis. Given the intense interest in splice-site switching oligomers (SSOs), we utilized a human tumor cell culture system (HeLa pLuc-705), in which SSO-directed splicing repair upregulates luciferase expression, in order to investigate bioactivity of the bionanoconjugates. …”
    Get full text
    Article
  6. 3346

    Carbonized Aramid Fiber as the Adsorbent for In-Tube Solid-Phase Microextraction to Detect Estrogens in Water Samples by Xiaoxiao Zhu, Yijun Zhang, Pengfei Liu, Xiuzhi Bai, Na Chen, Yuping Zhang

    Published 2021-01-01
    “…The surface structure, chemical composition, and graphitization degree of the resulted fiber was determined and characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and Raman spectrometry. The prepared fiber was packed in a stainless-steel tube instead of the sample loop of a six-port and tested for the extraction of five environmental estrogen hormones coupled with high-performance liquid chromatography. …”
    Get full text
    Article
  7. 3347

    Green hydrothermal synthesis of nickel and zinc-doped nickel ferrite nanoparticles using Dalbergiella welwitschii extracts and their biological studies by Oghenejoboh Ufuoma Modupe, Sonibare Oluwadayo Olatunde, Muhammad Waseem, Ekundayo Olusegun, Sirajul Haq, Ahad Amer Alsaiari, Jamoliddin Razzokov

    Published 2025-01-01
    “…Nanoparticles of Ni/Fe and Ni/Fe/Zn were synthesized by hydrothermal reaction of Dalbergiella welwitschii extract with the respective metal chlorides, and were characterized using XRD, SEM, DLS, IR and UV- spectroscopy. The drug encapsulation and release profile of the ferrites was studied using curcumin as a test drug. the Anticancer and antidiabetic activities of the nanoparticles were investigated against MCF-7 breast cancer cell lines using the MTT assay and α-glucosidase enzyme inhibitory assay, respectively. …”
    Get full text
    Article
  8. 3348

    Enhancing the performance of bituminous hot mix pavements with graphene nanoplatelet additive using taguchi optimization by Suna Işık, Fatih İrfan Baş

    Published 2025-07-01
    “…A comprehensive set of tests, including penetration, softening point, flash point, elastic recovery, rotational thin film oven test (RTFOT), Fourier transform infrared spectroscopy (FTIR), and Marshall design experiments, were conducted on the mixtures to evaluate the influence of the selected parameters and levels on the properties of bitumen. …”
    Get full text
    Article
  9. 3349
  10. 3350

    Influence of Light-Curing Time and Increment Thickness on the Properties of Bulk Fill Composite Resins With Distinct Application Systems by Carlos Rocha Gomes Torres, Taiana Paola Prado, Daniele Mara da Silva Ávila, Cesar Rogério Pucci, Alessandra Bühler Borges

    Published 2024-01-01
    “…The DC was measured using Fourier transformed infrared (FTIR) spectroscopy. The TP was assessed in additional specimens with 1 mm thick (n = 5). …”
    Get full text
    Article
  11. 3351

    Characterization of Colombian Clay and Its Potential Use as Adsorbent by Iván Fernando Macías-Quiroga, Gloria Inés Giraldo-Gómez, Nancy Rocío Sanabria-González

    Published 2018-01-01
    “…The clay was characterized by using X-ray diffraction (XRD), cation exchange capacity (CEC), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FT-IR), thermal analysis (TGA/DSC), and nitrogen adsorption at 77 K. …”
    Get full text
    Article
  12. 3352

    Combining solubilization and controlled release strategies to prepare pH-sensitive solid dispersion loaded with albendazole: in vitro and in vivo studies by Dehai Su, Mingyang Bai, Chaoqun Wei, Xiangyang Long, Xuezhen Liu, Xiangguang Shen, Huanzhong Ding

    Published 2024-12-01
    “…Characterization via Scanning Electron Microscopy (SEM), Powder X-ray Diffraction (PXRD), Differential Scanning Calorimetry (DSC), and Fourier Transform Infrared Spectroscopy (FT-IR) confirmed the high dispersion of ABZ in a crystalline state within the carrier. …”
    Get full text
    Article
  13. 3353

    Template-Free Synthesis of Star-Like ZrO2 Nanostructures and Their Application in Photocatalysis by Xue-Yu Tao, Jie Ma, Rui-Lin Hou, Xiang-Zhu Song, Lin Guo, Shi-Xiang Zhou, Li-Tong Guo, Zhang-Sheng Liu, He-Liang Fan, Ya-Bo Zhu

    Published 2018-01-01
    “…The as-prepared ZrO2 had a superior catalytic activity, and the reason for it was analyzed by UV-Vis diffuse reflectance spectroscopy. The effect of raw material ratios on the photocatalytic property of ZrO2 was studied. …”
    Get full text
    Article
  14. 3354

    Enhanced electrochemical performances of LiNi0.5Mn1.5O4 by surface modification with Cu nanoparticles by Zhao G., Lin Y., Zhu W., Yang W., Huang Z.

    Published 2017-01-01
    “…The effect of Cu-coating on the electrochemical performances of LiNi0.5Mn1.5O4 cells, in a wide operation temperature range (-10°C, 25°C, 60°C), is investigated systematically by the charge/discharge testing, cyclic voltammograms and impedance spectroscopy, respectively. The results demonstrate that the modified material exhibits remarkably enhanced electrochemical reversibility and stability. …”
    Get full text
    Article
  15. 3355

    Unveiling antidiabetic and antioxidant activities of biogenically synthesized red fluorescent graphene quantum dots using Bauhinia variegata L. leaves by Pooja Kadyan, Jaya Saini, Parul Singh, Ponnusamy Thillai Arasu, Sudhir Kumar Kataria

    Published 2025-01-01
    “…The synthesized GQDs were characterized through various analytical techniques i.e. UV–visible spectroscopy, FT-IR, fluorescence spectrophotometry, XRD, DLS and TEM to confirm their structural and optical properties. …”
    Get full text
    Article
  16. 3356

    Analysis of diabetes mellitus screening method based on electrical properties of cells using dielectric method by Faisal Muhammad, Juswono Unggul Pundjung, Santoso Didik Rahadi, Widodo Chomsin Sulistya

    Published 2025-01-01
    “…Mice that had experienced hyperglycemia had their dielectric constant measured using electrical impedance spectroscopy (EIS), and changes in cell morphology were observed using a binocular microscope. …”
    Get full text
    Article
  17. 3357

    Light Regulates Secreted Metabolite Production and Antagonistic Activity in <i>Trichoderma</i> by Edgardo Ulises Esquivel-Naranjo, Hector Mancilla-Diaz, Rudi Marquez-Mazlin, Hossein Alizadeh, Diwakar Kandula, John Hampton, Artemio Mendoza-Mendoza

    Published 2024-12-01
    “…The 6-PP was purified, and its spectrum by nuclear magnetic resonance and mass spectroscopy was identical to that of commercial 6-PP. …”
    Get full text
    Article
  18. 3358

    Aminopropyl Functionalised MCM-41: Synthesis and Application for Adsorption of Pb(II) and Cd(II) by Pham Dinh Du, Nguyen Trung Hieu, Thuy Chau To, Long Giang Bach, Mai Xuan Tinh, Tran Xuan Mau, Dinh Quang Khieu

    Published 2019-01-01
    “…The obtained materials were characterised using X-ray powder diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis-differential scanning calorimeter (TGA-DSC), adsorption/desorption isotherms of nitrogen, and Fourier-transfer infrared (FT-IR) spectroscopy. The results showed that the direct method provided the aminopropyl-MCM-41 material with well-ordered pores and high surface areas but with a lower quantity of grafted 3-aminopropyltriethoxysilane than the indirect method. …”
    Get full text
    Article
  19. 3359

    Biogenic nanotransferosomal vesicular system of Clerodendrum serratum L. for skin cancer therapy: formulation, characterization, and efficacy evaluation by Somnath Devidas Bhinge, Sayali Jadhav, Pranali Lade, Mangesh Anil Bhutkar, Shailendra Gurav, Namdeo Jadhav, Abhinandan Patil, Neeraj Upmanyu

    Published 2025-01-01
    “…Several analytical approaches, such as UV/Vis spectroscopy, XRD spectra, FTIR, TEM, SEM, particle size distribution, and zeta potential analysis, were employed to assess the synthesized CS-NTs. …”
    Get full text
    Article
  20. 3360

    Effect of rutin on the structural and functional properties of ovalbumin by Qian Cui, Yanqiu Ma, Xue Mao, Guozhi Zhao, Siyi Huang, Xingyu Wen, Zimeng Zhu, Xin Gao

    Published 2025-02-01
    “…At 0.25 % rutin, antioxidant analysis showed increases in the DPPH radical scavenging rate (127 %), ABTS radical scavenging rate (112 %), hydroxyl radical scavenging rate (4167 %), and reducing power (101 %) of OVA. Fluorescence spectroscopy, surface hydrophobicity, free sulfhydryl content, and circular dichroism spectra revealed that higher rutin concentrations reduced fluorescence intensity and surface hydrophobicity while increasing the free sulfhydryl content of OVA. …”
    Get full text
    Article