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A sensitive determination of lead by hydride generation integrated with micro-sampling gas-liquid separator-FAAS after preconcentration by NiFeO nanoparticles.
Sci Rep
January 2025
Faculty of Art and Science, Department of Chemistry, Yıldız Technical University, 34220, İstanbul, Türkiye.
In the present study, dispersive solid phase extraction - hydride generation integrated with micro-sampling gas-liquid separator - flame atomic absorption spectrometry was proposed to determine lead in lake water samples taken in the Horseshoe Island, Antarctica. In scope of this study, microwave assisted NiFeO nanoparticles were synthesized, and the characterization of nanoparticles were carried out by FT-IR, XRD and SEM. All influential parameters of dispersive solid phase extraction and hydride generation were optimized to enhance signal intensity belonging to the analyte.
View Article and Find Full Text PDFDeepExtremeCubes: Earth system spatio-temporal data for assessing compound heatwave and drought impacts.
Sci Data
January 2025
Remote Sensing Centre for Earth System Research (RSC4Earth), Leipzig University, Leipzig, 04103, Germany.
With climate extremes' rising frequency and intensity, robust analytical tools are crucial to predict their impacts on terrestrial ecosystems. Machine learning techniques show promise but require well-structured, high-quality, and curated analysis-ready datasets. Earth observation datasets comprehensively monitor ecosystem dynamics and responses to climatic extremes, yet the data complexity can challenge the effectiveness of machine learning models.
View Article and Find Full Text PDFRapid iPSC-derived neuromuscular junction model uncovers motor neuron dominance in amyotrophic lateral sclerosis cytopathy.
Cell Death Discov
January 2025
Bioinnovation Center, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.
The neuromuscular junction (NMJ) is essential for transmitting signals from motor neurons (MNs) to skeletal muscles (SKMs), and its dysfunction can lead to severe motor disorders. However, our understanding of the NMJ is limited by the absence of accurate human models. Although human induced pluripotent stem cell (iPSC)-derived models have advanced NMJ research, their application is constrained by challenges such as limited differentiation efficiency, lengthy generation times, and cryopreservation difficulties.
View Article and Find Full Text PDF[Exploration of CCL11 and sTNFR2 as potential biomarkers for the efficacy of lymphocyte immunotherapy in women with unexplained recurrent spontaneous abortion].
Zhonghua Fu Chan Ke Za Zhi
January 2025
Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, State Key Laboratory of Female Fertility Promotion, National Clinical Research Center for Obstetric and Gynecologic Diseases, Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing100191, China.
To explore biomarkers for the efficacy of lymphocyte immunotherapy (LIT) treating women with unexplained recurrent spontaneous abortion (URSA). Serum samples from 24 URSA potients who received LIT were collected at Peking University Third Hospital from December 2014 to June 2015. Semiquantitative sandwich-based antibody arrays containing 40 cytokines were used to screen target immune cytokines in the peripheral blood of URSA patients before and after LIT.
View Article and Find Full Text PDFFabrication of Ag based Surface Enhanced Raman Scattering substrates with periodic mask arrays by electron beam deposition.
Anal Chim Acta
February 2025
Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, No.516 Jungong Road, Shanghai, 200093, China.
Background: Surface-enhanced Raman scattering (SERS) has attracted much attention as a powerful detection and analysis tool with high sensitivity and fast detection speed. The intensity of the SERS signal mainly depended on the highly enhanced electromagnetic field of nanostructure near the substrate. However, the fabrication of high-quality SERS nanostructured substrates is usually complicated, makes many methods unsuitable for large-scale production of SERS substrates.
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