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1841
Encapsulation of Hydrogen Peroxide in PVA/PVP Hydrogels for Medical Applications
Published 2025-01-01“…The structural and morphological properties of the hydrogel were characterized using Fourier transform infrared spectroscopy (FTIR), environmental scanning electron microscope analysis (E-SEM), and water-swelling tests. …”
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1842
Sodium cation exchanged zeolites for direct air capture of CO2
Published 2025-01-01“…This study systematically investigated the CO2 adsorption-desorption performance of the representative zeolites (ZSM-5, Beta, Mordenite and Y) in H- and Na-forms using various analytical methods, including in-situ Diffuse Reflectance Infrared Fourier Transform spectroscopy. Compared to the corresponding H-zeolites, the enhancement of CO2 adsorption capacity by Na+ ions was observed for all the structure-type zeolite adsorbents. …”
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1843
Multifield Coupling Mechanism of Unloading Deformation and Fracture of Composite Coal-Rock
Published 2021-01-01“…The experimental results show that the internal infrared radiation temperature of the composite coal-rock decreases during the initial stage of loading and unloading due to the discharge of internal gas. …”
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1844
fNIRS neurofeedback facilitates emotion regulation: Exploring individual differences over the ventrolateral prefrontal cortex
Published 2025-03-01“…Participants in the experimental group underwent VLPFCNF training over eight sessions across two consecutive days, while those in the sham group received random signals from functional near-infrared spectroscopy (fNIRS). To investigate individual variability, participants in the experimental group were further categorized as high or low-efficacy groups based on their training efficiency, determined by the regression slope of VLPFC activity over the sessions. …”
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1845
A Study and Comparison of the Preparation of Gadolinium Aluminate Nanoparticles Using γ-Irradiated and Unirradiated Precursors
Published 2018-01-01“…The formation of NPs has been confirmed by X-ray diffraction analysis (XRD) and Fourier-transform infrared (FT-IR) spectroscopy. The results indicate towards the formation of an orthorhombic perovskite structure of GdAO3 in the Pbnm space group. …”
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1846
Tailor-Made, Linear, and “Comb-Like” Polyester-Based Copolymers: Synthesis, Characterization, and Thermal Behavior of Potential 3D-Printing/Electrospinning Candidates
Published 2018-01-01“…Copolymers were characterized by hydrogen nuclear magnetic resonance (1H-NMR), size exclusion chromatography (SEC), and Fourier transform infrared (FTIR) spectroscopy. All polymers exhibited narrow molar masses distributions (Mw/Mn<1.54), and their thermal properties were analyzed by isothermal crystallization kinetics (Avrami’s theory, by using differential scanning calorimetry (DSC)) and by employing modulated thermogravimetric analysis (MTGA). …”
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1847
Development of a Sustainable Flexible Humidity Sensor Based on <i>Tenebrio molitor</i> Larvae Biomass-Derived Chitosan
Published 2025-01-01“…Comprehensive characterization of the chitosan film was performed using Fourier-transform infrared (FTIR) spectroscopy, contact angle measurements, and tensile testing, which confirmed its chemical structure, wettability, and mechanical stability. …”
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1848
A Preliminary Study to Evaluate Recovery in Environmental Microplastic Analysis
Published 2024-01-01“…MPs in the samples, which underwent a series of experimental processes, such as density separation (NaCl) and organic removal (30% H2O2), were later visually inspected with a stereo microscope and then identified with an Attenuated Total Reflectance (ATR)-Fourier Transform Infrared (FTIR) spectrometer. Polyethylene, Tencel, and Polyacetylene (>70% matching rate) type MPs were detected in soil and dust samples, mainly in the form of fibers and fragments, with sizes ranging between 57.0-4989 µm and 36.2-2636 µm, with an average of 1.43±0.574 MP/g and 5500±2531 MP/g, respectively. …”
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1849
Intrinsically anisotropic 1D NbTe4 for self-powered polarization-sensitive photodetection
Published 2024-11-01“…Meanwhile, the device exhibits a pronounced photothermoelectric effect, conferring a broad spectral photoresponse ranging from visible to near-infrared wavelengths (532-1064 nm), with a rapid response time of 158 ms. …”
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1850
Potential Technosignature from Anomalously Low Deuterium/Hydrogen in Planetary Water Depleted by Nuclear Fusion Technology
Published 2025-01-01“…These are vibrational O–D stretching at 3.7 μ m in transmission spectroscopy of Earth-like worlds, ∼1.5 μ m (in the wings of the 1.4 μ m water band) in the shorter near-infrared for direct imaging by the Habitable Worlds Observatory, and ∼7.5-8 μ m (in the wings of the broad 6.3 μ m bending vibration of water) for concepts like the Large Interferometer for Exoplanets.…”
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1851
Gnidia glauca- and Plumbago zeylanica-Mediated Synthesis of Novel Copper Nanoparticles as Promising Antidiabetic Agents
Published 2019-01-01“…Aqueous extracts of flower, leaf, and stem of G. glauca and leaves of P. zeylanica were prepared which could effectively reduce Cu2+ ions to CuNPs within 5 h at 100°C which were further characterized using UV-visible spectroscopy, field emission scanning electron microscopy, high-resolution transmission electron microscopy, energy dispersive spectroscopy, dynamic light scattering, X-ray diffraction, and Fourier-transform infrared spectroscopy. Further, the CuNPs were checked for antidiabetic activity using porcine pancreatic α-amylase and α-glucosidase inhibition followed by evaluation of mechanism using circular dichroism spectroscopy. …”
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1852
Incorporation of κ-carrageenan improves the practical features of agar/konjac glucomannan/κ-carrageenan ternary system
Published 2023-03-01“…., scanning electron microscopy, small-angle X-ray scattering, infrared spectroscopy (IR) and X-ray diffraction (XRD), were used to disclose how κ-carrageenan addition tailors the features of agar/KGM/κ-carrageenan ternary system. …”
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1853
Influence of Molybdenum Content and MoOxy- Species on the Textural and Structural ZrO2 Properties
Published 2014-01-01“…The characterization of the solids was carried out by thermal analysis, X-ray diffraction, nitrogen physisorption, infrared spectroscopy, and scanning electron microscopy. …”
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1854
Use of Nanostructured Layered Double Hydroxides as Nanofilters in the Removal of Fe2+ and Ca2+ Ions from Oil Wells
Published 2018-01-01“…The SEM micrographs of Mg-O-Al-OH and Ca-O-Al-OH layers intercalated with PO43− and/or [PO4PF6]4− anions are similar consisting of uniform nanospheres with an average size of 100 nm, while the M-O-Al-OH layer of compound 3, intercalated with SO42− anions, consists of hexagonal nanoplate crystals. In the infrared spectra, the characteristic absorption band for water molecules was observed in all the compounds. …”
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1855
Material and Technique Analysis of Qing Dynasty Official Style Architectural Polychrome Paintings in Hangzhou, Zhejiang, China
Published 2025-01-01“…Through multi-techniques such as optical microscopy (OM), scanning electron microprobe with energy dispersive X-ray spectroscopy analysis (SEM-EDX), micro-Raman spectroscopy, micro-Fourier Transform Infrared spectroscopy (μ-FTIR), and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), it was found that there is a significant difference from the reported common non-ground architectural paintings in the south, typically having four-layer structures with a white base and ground plaster layer in preparation for painting. …”
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1856
Synthesis and Characterization of Paclitaxel-Loaded Silver Nanoparticles: Evaluation of Cytotoxic Effects and Antimicrobial Activity
Published 2024-01-01“…The synthesized AgNPs and AgNPs-PTX were characterized by dynamic light scattering (DLS), scanning transmission electron microscopy, UV-visible spectroscopy, Fourier transform infrared spectroscopy, and X-ray spectroscopy. The nanoparticles were spherical in shape, with AgNPs ranging in size from 2.32 to 5.6 nm and AgNPs-PTXs from 24.36 to 58.77 nm. …”
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1857
Green nanoparticles synthesized from damask rose petals: Evaluation of their antioxidant, antimicrobial, anti-diabetic, anti-Alzheimer, and photocatalytic properties
Published 2025-02-01“…The synthesized nanoparticles were confirmed using an X-ray diffractometer, UV–visible, and Fourier transform infrared spectrometry. A morphological examination with a field emission scanning electron microscope revealed that the G-ZnO NPs had a diameter ranging from 44.66 to 83.74 nm and a purity of 93.2 %. …”
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1858
Laser-based 3D printing and optical characterization of optical micro-nanostructures inspired by nocturnal insects compound eyes
Published 2025-01-01“…The optical properties of the moth eyes-inspired microlens arrays were investigated in the infrared (IR) range, between 1000 and 1700 nm. The optical transmission of microlens arrays with nanopillars was up to 17.55% higher than the transmission through microlens arrays without nanopillars. …”
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1859
810-nm Photobiomodulation Evokes Glutamate Release in Normal and Rotenone-Dysfunctional Cortical Nerve Terminals by Modulating Mitochondrial Energy Metabolism
Published 2025-01-01“…Scientific evidence indicates that light in the visible and near-infrared spectrum can modulate mitochondrial activity, a phenomenon known in medicine as photobiomodulation therapy (PBM-t). …”
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1860
NIRS as an alternative method for table grapes Seedlessness sorting
Published 2025-06-01“…In addition, the seedlessness is difficult to detect by cutting and counting technique. The shortwave-near infrared spectroscopy (SW-NIRS), coupled with suitable chemometric analysis, is a non-destructive method for sorting and prediction of seedlessness grapes. …”
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