Showing 1,061 - 1,080 results of 1,443 for search '"mass spectrometry"', query time: 0.09s Refine Results
  1. 1061

    Cell-free supernatants from plant growth-promoting rhizobacteria Bacillus albus strains control Aspergillus flavus disease in peanut and maize seedlings by Lai Loi Trinh, Kim Ngoc Le, Hoang Anh Le Lam, Hoai Huong Nguyen

    Published 2025-01-01
    “…These were characterized using rapid chemical assays and ultra-high-performance liquid chromatography-electrospray ionization-quadrupole time-of-flight/mass spectrometry (UHPLC-ESI-QTOF/MS), combined with bioinformatic tools such as Global Natural Product Social Molecular Networking (GNPS) and Natural Products Atlas (NPAtlas). …”
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  2. 1062

    Assessment of the Chemical Diversity and Functional Properties of Secondary Metabolites from the Marine Fungus <i>Asteromyces cruciatus</i> by María Paz González-Troncoso, Catalina Landeta-Salgado, Javiera Munizaga, Ruth Hornedo-Ortega, María del Carmen García-Parrilla, María Elena Lienqueo

    Published 2024-12-01
    “…Crude extracts of fungal biomass were analyzed for total phenolic content (TPC), antioxidant capacity (TAC), toxicity, and phenolic compound identification using ultra-high-performance liquid chromatography coupled with high-resolution electrospray ionization mass spectrometry (UHPLC-MS/MS). The analysis revealed the presence of anthraquinone compounds, including emodin (0.36 ± 0.08 mg/g DW biomass) and citrereosein in glucose medium and citrereosein and endocrocin in <i>M. pyrifera</i> medium. …”
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  3. 1063

    Evaluation of Antibiotic Resistance and Biofilm Production among Clinical Strain Isolated from Medical Devices by Veronica Folliero, Gianluigi Franci, Federica Dell’Annunziata, Rosa Giugliano, Francesco Foglia, Rossella Sperlongano, Anna De Filippis, Emiliana Finamore, Massimiliano Galdiero

    Published 2021-01-01
    “…Identification of isolates and antibiotic susceptibility testing were performed using Matrix Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-TOF MS) and Phoenix Becton Dickinson, respectively. …”
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  4. 1064

    Malaria exposure remodels the plasma proteome of Ghanaian children by Aisha M. Mohammed, Charles Ochieng’ Olwal, Andrea Fossati, Nancy K. Nyakoe, Jacqueline M. Fabius, Martin Gordon, Benjamin J. Polacco, Danielle L. Swaney, Gordon A. Awandare, Nevan J. Krogan, Mehdi Bouhaddou, Yaw Bediako

    Published 2025-02-01
    “…The plasma proteome of these children was profiled using a mass spectrometry-based approach and putative protein-based biomarkers and predictors of immune tolerance to malaria were identified. …”
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  5. 1065

    Aqueous humor metabolomic profiling identifies a distinct signature in pseudoexfoliation syndrome by Arturs Zemitis, Arturs Zemitis, Juris Vanags, Juris Vanags, Theresa Schiemer, Theresa Schiemer, Kristaps Klavins, Kristaps Klavins, Guna Laganovska, Guna Laganovska

    Published 2025-01-01
    “…Intraocular fluid samples from these patients were analyzed using targeted metabolite analysis, performed through HILIC liquid chromatography coupled with mass spectrometry detection.ResultsThe aqueous humor of PEXS patients contains statistically significant higher levels of cystine (p &lt; 0.001), citrulline (p &lt; 0.001), phenylalanine (p = 0.041), tyrosine (p = 0.025), serine (p = 0.030), arginine (p = 0.017), lactic acid (p = 0.055), tryptophan (p = 0.055), and creatinine (p = 0.022). …”
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  6. 1066

    Investigation of <i>Atraphaxis virgata</i>, an Unexplored Medicinal Plant Rich in Flavonoids, as a Functional Material by Soeun Shin, Seunghee Kim, Jeongho Lee, Hyerim Son, Jin-Hyub Paik, Nadezhda Gennadievna Gemejiyeva, Zhanat Zhumabekovna Karzhaubekova, Taek Lee, Hah Young Yoo

    Published 2025-01-01
    “…In this study, phytochemical compounds of <i>A. virgata</i> extracts were identified using high-performance liquid chromatography (HPLC) and gas chromatography–mass spectrometry (GC-MS) and their antioxidant activity was evaluated. …”
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  7. 1067

    Assessment of aluminium level in commercial pasteurized and UHT milk in Bangladesh and their potential health risks by Ishrat Jahan, Kazi Md. Al-Noman, Shabbir Ahmed, Mst. Umme Habiba, S. A. Masudul Hoque, Abu Sadeque Md. Selim, Md. Morshedur Rahman

    Published 2025-03-01
    “…This study aimed to measure Al concentrations in these processed products using inductively coupled plasma mass spectrometry (ICP-MS) and assess the associated health risks. …”
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  8. 1068

    Metabolomic approach to investigate <i>Dactylis glomerata</i> L. from the VIR collection by N. Yu. Malysheva, T. V. Shelenga, A. E. Solovyeva, T. B. Nagiev, N. V. Kovaleva, L. L. Malyshev

    Published 2023-04-01
    “…The study was carried out using gas-liquid chromatography coupled with mass spectrometry. The study and comparison of groups of metabolites of cocksfoot accessions of various ecological and geographical origin was carried out. …”
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  9. 1069

    A novel mode of histone-like protein HupB regulating Sinorhizobium meliloti cell division through lysine acetylation by Ningning Li, Huibo Jin, Hongbo Li, Huilin Yu, Xiaoxu Wu, Tianci Zhang, Liangliang Yu, Zhaoling Qin, Li Luo

    Published 2025-01-01
    “…Lys3, Lys13, and Lys83 in HupB were identified as acetylated residues by mass spectrometry. Mutating these residues to arginine (stimulating non-acetylation) in HupB impedes normal cell division, while substituting them with glycine (mimicking acetylation) allows for rapid cell duplication. …”
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  10. 1070

    In Vitro Biological and GC-MS Analysis of Whole Plant Calotropis procera by Qahir Shah, Jahangir Khan Achakzai, Muhammad Anwar Panezai, Basira Akhtar, Abdul Manan Kakar, Ali Akbar, Shahabuddin Kakar, Nisar Ahmed Shahwani, Javed Khan, Nazima Yousaf Khan, Ghulam Mustafa Khan, Nizam Baloch, Bakht Zareen Rahim, Noor Hassan

    Published 2024-01-01
    “…MTT assay, antileishmanial bioassay, microplate Alamar Blue assay, agar tube dilution method, oxidative burst assay using chemiluminescence technique, B-hatching techniques, and triple quadrupole acquisition method MS parameters were the methods used for anticancer, antileishmanial, antibacterial, antifungal, anti-inflammatory, brine shrimp lethality assay, and gas chromatography-mass spectrometry. Whole plant methanol extract of Calotropis procera (WMECP) inhibited 69.1% of the growth of HeLa cell line with an IC50 value of 3.1 ± 0.4 and whole plant n-hexane fraction of Calotropis procera (WHFCP) and whole plant and aqueous fraction of Calotropis procera (WAFCP) inhibited the growth by 70.2% and 65.2% with IC50 values of 5.0 ± 0.3 and 17.1 ± 1.0. …”
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  11. 1071

    Hybrid Carbohydrate–Lipid Nanocarriers: In Vitro Efficacy Gene-Rated by Association of UV-Absorbers and Raspberry Polyphenols Rich-Fraction by Nicoleta Badea, Diego Samayoa, Alina Moroşan, Cristina Ott, Ioana Lacatusu

    Published 2024-12-01
    “…<b>Methods</b>: Quality and quantitative attributes of classic- and HA-NLC have been assigned based on particle size, electrokinetic potential, encapsulation efficiency, spectroscopic characteristics, and high-resolution mass spectrometry. To establish the performance profile of antioxidant activity, release of active substances, sun blocking action, and photostability, in vitro studies were conducted. …”
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  12. 1072

    Chemical Constituents and Combined Larvicidal Effects of Selected Essential Oils against Anopheles cracens (Diptera: Culicidae) by Jitrawadee Intirach, Anuluck Junkum, Benjawan Tuetun, Wej Choochote, Udom Chaithong, Atchariya Jitpakdi, Doungrat Riyong, Daruna Champakaew, Benjawan Pitasawat

    Published 2012-01-01
    “…Chemical compositions analyzed by gas chromatography coupled to mass spectrometry demonstrated that the main component in the oil derived from P. sarmentosum, F. vulgare, C. longa, M. fragrans, and Z. piperitum was croweacin (71.01%), anethole (63.00%), ar-turmerone (30.19%), safrole (46.60%), and 1,8-cineole (21.27%), respectively. …”
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  13. 1073

    Ossification Vesicles with Calcium Phosphate in the Eyes of the Insect Copium teucrii (Hemiptera: Tingidae) by Javier Garcia-Guinea, Alberto Jorge, Laura Tormo, Marta Furio, Elena Crespo-Feo, Virgilio Correcher, Pedro Prado-Herrero, Ana C. Soria, Jesus Sanz, Jose L. Nieves-Aldrey

    Published 2011-01-01
    “…The chemical composition of both galls and leaves of T. gnaphalodes was determined by gas chromatography – mass spectrometry (GC-MS) of their extracts. The spectrometric and microscopic images reveal that the calcium-phosphate mineralization is formed and constrained to Copium ommatidia, which are both matrix vesicles generating mixtures of apatite collagen and operational compound eyes of the insect.…”
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  14. 1074

    BTEX Exposure Assessment and Inhalation Health Risks to Traffic Policemen in the Klang Valley Region, Malaysia by Noor Fatihah Mohamad Fandi, Juliana Jalaludin, Mohd Talib Latif, Haris Hafizal Abd Hamid, Mohd Fairus Awang

    Published 2020-06-01
    “…Air samples were collected with low-flow personal samplers during the officers’ work shifts outdoors, and the BTEX content was then analyzed via gas chromatography-mass spectrometry (GC-MS) coupled with thermal desorption (TD). …”
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  15. 1075

    Synthesis of Mannich N-bases based on benzimidazole derivatives using SiO2OAlCl2 catalyst and their potential as antioxidant, antibacterial, and anticancer agents by Antonius Herry Cahyana, Ikrimah Desta, Laely Amaliyah, Aida Nadia, Hilna Diana Sahaya, Dicky Annas, Bayu Ardiansah, Mohammad Jihad Madiabu, Inda Mapiliandari, Kang Hyun Park

    Published 2025-01-01
    “…The purity of the synthesized compounds was monitored by Thin layer chromatography (TLC), melting point test, Ultraviolet-visible (UV–Vis), and Liquid chromatography-Mass spectrometry (LC-MS). The five intermediate compounds and five mannich base products yield 77 %-89 % and 65 %-85 %, respectively. …”
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  16. 1076

    Characterizing Industrial VOC Hotspots in One of Eastern China’s Largest Petrochemical Parks Using Mobile PTR–ToF–MS Measurements by Jie Fang, Zihang Zhang, Zeye Liang, Ming Wang, Yunjiang Zhang, Xinlei Ge

    Published 2025-01-01
    “…In this study, we employed mobile proton transfer reaction–time-of-flight–mass spectrometry (PTR–ToF–MS) to identify and characterize industrial VOC hotspots in a petrochemical park in eastern China, from June to September 2021. …”
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  17. 1077

    Analysis of Biomolecular Changes in HeLa Cervical Cancer Cell Line Induced by Interaction with [Pd(dach)Cl<sub>2</sub>] by Vanja Ralić, Maja D. Nešić, Tanja Dučić, Milutin Stepić, Lela Korićanac, Katarina Davalieva, Marijana Petković

    Published 2025-01-01
    “…Although a certain level of lipid peroxidation was detectable by SR FTIR spectroscopy and confirmed by an analysis of cellular lipids by matrix-assisted laser desorption and ionisation time-of-flight mass spectrometry, the oxidative stress is not a significant mechanism by which Pd(II) expresses the effect on the HeLa cells.…”
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  18. 1078

    Antioxidant and Chelating Activity of Nontoxic Jatropha curcas L. Protein Hydrolysates Produced by In Vitro Digestion Using Pepsin and Pancreatin by Santiago Gallegos Tintoré, Cristina Torres Fuentes, Javier Solorza Feria, Manuel Alaiz, Julio Girón Calle, Alma Leticia Martínez Ayala, Luis Chel Guerrero, Javier Vioque

    Published 2015-01-01
    “…Peptidic fractions with higher radical scavenging activity were analysed by matrix-assisted laser desorption/ionization mass spectrometry. The antioxidant activity was determined by measuring inhibition of the oxidative degradation of β-carotene and by measuring the reactive oxygen species (ROS) in Caco-2 cell cultures. …”
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  19. 1079

    Identification of Potential Serum Metabolic Biomarkers of Diabetic Kidney Disease: A Widely Targeted Metabolomics Study by Hang Zhang, Jing-jing Zuo, Si-si Dong, Yuan Lan, Chen-wei Wu, Guang-yun Mao, Chao Zheng

    Published 2020-01-01
    “…The ultraperformance liquid chromatography-electrospray ionization-tandem mass spectrometry system was applied for the assessment of the serum metabolic profiles. …”
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  20. 1080

    Nisin Z Production by Wild Strains of Lactococcus lactis Isolated from Brazilian (Italian Type) Fermented Sausage by Margarete Alice Fontes Saraiva, Dagim Jirata Birri, Dag Anders Brede, Maria Cristina Baracat-Pereira, Marisa Vieira de Queiroz, Ingolf F Nes, Célia Alencar de Moraes

    Published 2020-01-01
    “…Ion exchange and reversed-phase chromatographies were used to purify the bacteriocins from culture supernatant of the five strains. Mass spectrometry (MALDI-TOF/TOF) showed that the molecular masses of the bactericoins from L. lactis ID1.5, ID3.1, ID8.5, PD4.7, and PR3.1 were 3330.567 Da, 3330.514 Da, 3329.985 Da, 3329.561 Da, and 3329.591 Da, respectively. …”
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