Showing 2,081 - 2,100 results of 2,161 for search '"electron microscopy"', query time: 0.07s Refine Results
  1. 2081

    Impacts of high CDW levels on the chemical, microstructural, and mechanical behavior of cement-based mortars by M.L. Peixoto, S.D. Jesus, H.S. Cavalcante, B.S. Teti, R.C. Manta, N.B. Lima, H.C.B. Nascimento, S. Fucale, N.B.D. Lima

    Published 2025-07-01
    “…The mortars were made to evaluate the mechanical behavior and characterization tests of recycled and natural aggregates, consistency index, mass density, resistance to simple compression, x-ray diffraction, and scanning electron microscopy. The results revealed that the grains' maximum characteristic dimension corresponds to 2.36 mm, equivalent to the fine sand used. …”
    Get full text
    Article
  2. 2082

    Bone marrow mesenchymal stem cell-derived extracellular vesicles alleviate diabetes-exacerbated atherosclerosis via AMPK/mTOR pathway-mediated autophagy-related macrophage polariza... by Libo Liu, Ziyu An, Huan Zhang, Xueqi Wan, Xin Zhao, Xueyao Yang, Jinfan Tian, Xiantao Song

    Published 2025-01-01
    “…Methods EVs were isolated from the supernatant of cultured BMSCs and characterized with transmission electron microscopy (TEM), nanoparticle tracking analysis (NTA), and western blotting. …”
    Get full text
    Article
  3. 2083

    Stem Cells from Human Exfoliated Deciduous Teeth Ameliorate Diabetic Nephropathy In Vivo and In Vitro by Inhibiting Advanced Glycation End Product-Activated Epithelial-Mesenchymal... by Nanquan Rao, Xiaotong Wang, Jing Xie, Jingzhi Li, Yue Zhai, Xiaoxia Li, Tengjiaozi Fang, Yuanyuan Wang, Yuming Zhao, Lihong Ge

    Published 2019-01-01
    “…At 8 weeks after administration, real-time PCR, immunohistochemistry (IHC), and electron microscopy were employed to examine pathological changes in glomerular and tubulointerstitial tissue. …”
    Get full text
    Article
  4. 2084
  5. 2085

    Study on the Regulated Cell Death of Hypertrophic H9c2 Cells Induced by Au:Ag Nanoparticles by Galindo-Padrón AG, Lorenzo-Anota HY, Rueda-Munguía M, García-Carrasco A, Gaitán López M, Vázquez-Garza E, Campos-González E, Lozano O, Cholula-Díaz JL

    Published 2025-02-01
    “…Their physicochemical properties were characterized through UV-vis spectroscopy, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, dynamic light scattering (DLS), ζ-potential measurements, and transmission electron microscopy (TEM). Moreover, the effect of the metal-based nanoparticle exposure on healthy and hypertrophic H9c2 cells was measured by analyzing the cellular vitality, the loss of mitochondrial membrane potential (∆Ψm), and the production of mitochondrial reactive oxygen species (mROS).Results: The Au:Ag NPs did not affect the cell vitality of healthy or metabolically activated macrophages. …”
    Get full text
    Article
  6. 2086

    Ultrastructural Changes in Clinical and Microbiota Isolates of Klebsiella pneumoniae Carriers of Genes blaSHV, blaTEM, blaCTX-M, or blaKPC When Subject to β-Lactam Antibiotics by Dyana Leal Veras, Ana Catarina de Souza Lopes, Grasielle Vaz da Silva, Gabriel Gazzoni Araújo Gonçalves, Catarina Fernandes de Freitas, Fernanda Cristina Gomes de Lima, Maria Amélia Vieira Maciel, Ana Paula Sampaio Feitosa, Luiz Carlos Alves, Fábio André Brayner

    Published 2015-01-01
    “…In accordance with the susceptibility profile, the clinical isolates were subjected to subminimum inhibitory concentrations (sub-MICs) of cefotaxime, ceftazidime, aztreonam, and imipenem and the isolates from the microbiota to ampicillin and amoxicillin, for analysis by means of scanning and transmission electron microscopy. The K. pneumoniae isolates showed different morphological and ultrastructural changes after subjection to β-lactams tested at different concentrations, such as cell filamentation, loss of cytoplasmic material, and deformation of dividing septa. …”
    Get full text
    Article
  7. 2087

    Investigation the effect of calcination heating rate on the structural, morphological, thermal and color properties of nano Cobalt Aluminate (CoAl2O4) by Md. Farid Ahmed, Monmon Podder, Md. Rassel Moni, Md. Lutfor Rahman, Bristy Biswas, Juliya Khanam, Mahmuda Hakim, Moksodur Rahman, Md. Sahadat Hossain, Nahid Sharmin

    Published 2025-02-01
    “…The presence of functional groups was explored by Fourier Transform Infrared (FTIR) Spectroscopy, while Field Emission Scanning Electron Microscopy (FESEM) illustrated agglomerated nanoparticles showcasing diverse shapes. …”
    Get full text
    Article
  8. 2088

    Hsp70/Bmi1-FoxO1-SOD Signaling Pathway Contributes to the Protective Effect of Sound Conditioning against Acute Acoustic Trauma in a Rat Model by Guoxia Zhu, Yongxiang Wu, Yang Qiu, Keyong Tian, Wenjuan Mi, Xinqin Liu, Yuanyuan Chen, Jinwen Jia, Jiasheng Luo, Lianjun Lu, Jianhua Qiu

    Published 2020-01-01
    “…Moreover, the auditory brainstem responses (ABRs) and electron microscopy revealed that SC could protect against acute acoustic trauma (AAT) based on a significant reduction of hearing impairment and visible reduction in outer hair cell loss as well as ultrastructural changes in OHCs and SGNs. …”
    Get full text
    Article
  9. 2089
  10. 2090

    Exploring the Diversity of Some Microorganisms from Lake Al-Asfar, KSA: The Good, the Bad, and the Pathogenic by Fatimah Al Tammar, Nermin El Semary, Munirah F. Aldayel, Duaa Althumairy, Gowhara Alfayad

    Published 2025-01-01
    “…The polyphasic approach was used to identify bacterial samples, including staining procedures, the use of Vitek technology, and scanning electron microscopy. This information was integrated with structure information such as capsule presence, endospore formation, and wall characteristics indicated by Gram stain. …”
    Get full text
    Article
  11. 2091

    Carboxylated Graphene: An Innovative Approach to Enhanced IgA-SARS-CoV-2 Electrochemical Biosensing by Luciana de Souza Freire, Ariamna María Dip Gandarilla, Yonny Romaguera Barcelay, Camila Macena Ruzo, Barbara Batista Salgado, Ana P. M. Tavares, Francisco Xavier Nobre, Julio Nino de Souza Neto, Spartaco Astolfi-Filho, Ștefan Țălu, Pritesh Lalwani, Niranjan Patra, Walter Ricardo Brito

    Published 2025-01-01
    “…The characterization of the CG was performed using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Raman spectroscopy, thermogravimetric analysis (TGA), and X-ray diffraction (XRD). …”
    Get full text
    Article
  12. 2092

    Evaluating oxide nanoparticle exsolution on A-site deficient PrBaCo2O6-δ electrodes by Alfonso J Carrillo, María Balaguer, Cecilia Solís, Andrés López-García, Sylvio Haas, María Fabuel, Blanca Delgado-Galicia, Isabelle Rodriguez, Einar Vøllestad, Sebastian Wachowski, Ragnar Strandbakke, Truls Norby, Jose M Serra

    Published 2025-01-01
    “…Combined Raman spectroscopy and electron microscopy analysis revealed that BaCoO _3 , Co _3 O _4 , and amorphous BaCO _3 nanoparticles were formed on the surface of the double perovskites after the reductive treatments. …”
    Get full text
    Article
  13. 2093

    Klebsiella pneumoniae-derived extracellular vesicles impair endothelial function by inhibiting SIRT1 by Xinxin Li, Jinghua Cui, Zanbo Ding, Ziyan Tian, Yiming Kong, Linghai Li, Yang Liu, Wen Zhao, Xueying Chen, Han Guo, Zhengshuo Cui, Xinwei Li, Jing Yuan, Huina Zhang

    Published 2025-01-01
    “…Methods K.pn EVs were purified from the bacterial suspension using ultracentrifugation and characterized by transmission electron microscopy nanoparticle tracking analysis, and EV marker expression. …”
    Get full text
    Article
  14. 2094
  15. 2095

    Technological dental sealants: in vitro evaluation of material properties and antibiofilm potential by Witalo Pereira de Jesus, Luiza de Almeida Queiroz Ferreira, Washington Henrique Themoteo da Silva, Fernanda Vieira Belém, Ana Paula Turrioni, Cláudia Silami de Magalhães, Mila Fernandes Moreira Madeira, Ivana Márcia Alves Diniz, Marco Aurelio Benini Paschoal

    Published 2025-02-01
    “…Abstract Background Due to the launch of new self-etching and self-adhesive sealing materials combined with the release of bioactive ions in the dental market, this in vitro study aimed to compare physical values of surface roughness (RS), vickers microhardness (VM), compositional energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), microbiological tests (inhibition halo-HI and surface microbial adhesion-MAS) and mechanical microshear bond strength (MBS). …”
    Get full text
    Article
  16. 2096

    Green biosynthetic silver nanoparticles from Ageratum conyzoides as multifunctional hemostatic agents: Combining hemostasis, antibacterial, and anti-inflammatory properties for eff... by Yang Li, Yinfeng Tan, Huange Zhao, Shiting Chen, Azadeh Nilghaz, Rong Cao, Songlin Zhou

    Published 2025-04-01
    “…Subsequent experiments including scanning electron microscopy, flow cytometry, western blotting, and network pharmacology analysis have revealed that AC-AgNPs can cause platelet activation and aggregation, stimulated kallikrein-kinin system, shorten activated partial thromboplastin and prothrombin time, and increase fibrinogen content. …”
    Get full text
    Article
  17. 2097

    Therapeutic effect of dihydroartemisinin on Alzheimer’s disease model mice with senile macular degeneration by Gao Han, Gong Xuewu, Zhang Meng, Wang Yuejing, Wang Yuchun, Zhang Keshuang, Yao Hongbo

    Published 2025-02-01
    “…DHA and donepezil could improve the damage of cerebral cortex structure and reduce the deposition of extracellular amyloid β-protein in AD mice. Transmission electron microscopy showed that DHA and donepezil could reduce mitochondrial vacuolation and synaptic edema. …”
    Get full text
    Article
  18. 2098

    Structural basis of FpGalNase and its combination with FpGalNAcDeAc for efficient A-to-O blood group conversion by Meiling Zhou, Kaishan Luo, Chao Su, Yan Sun, Zuyan Huang, Shuo Ma, Xun Gao, Jiwei Wang, Chen Zhang, Pengcheng Han, Guoqiu Wu

    Published 2025-01-01
    “…Additionally, we engineered two fusion proteins, FpGalNAcDeAc-FpGalNase and FpGalNase-FpGalNAcDeAc, which showed a 28-fold increase in catalytic efficiency compared to the enzyme mixture. Using cryo-electron microscopy, we resolved the full-length structure of FpGalNase, identifying critical active site residues involved in its catalytic mechanism. …”
    Get full text
    Article
  19. 2099

    Integrated removal of chromium, lead, and cadmium using nano-zero-valent iron-supported biochar: Mechanistic insights and eco-toxicity assessment by Yuzhen Wei, Jialu Yu, Fasih Ullah Haider, Qinhu Zhang, Run Chu, Cai Liqun

    Published 2025-01-01
    “…An in-depth characterization of the underlying adsorption mechanism was performed by using kinetic and isotherms models such as Pseudo-first-order, Pseudo-second-order, Langmuir and Freundlich, X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) analysis. Each HM exhibited a distinct adsorption mechanism. …”
    Get full text
    Article
  20. 2100

    Oncolytic influenza virus enhances killing effect of gemcitabine against pancreatic cancer cells by MENG Zihe, MENG Zihe, XU Yongru, DENG Zhaoda

    Published 2025-01-01
    “…The virus was then comprehensively characterized through chicken red blood cell hemagglutination assay, transmission electron microscopy, and viral replication assay. CCK-8 assay was utilized to determine the impact of OvFlu-GM-CSF viruses [multiplicities of infection (MOI): 0, 0.1, 1.0, 3.0] on the survival rate of pancreatic cancer cell lines (Panc02, PANC-1, SW1990, BxPC-3) and normal pancreatic ductal epithelial cells (HPDE6-C7) after treatment for 24, 48 or 72 h. …”
    Get full text
    Article