Smart protective coatings and devices are currently of great interest. In particular, they can absorb or reflect harmful waves of electromagnetic interference (EMI). In this work, novel binary and ternary composites with highly amorphous poly(vinyl alcohol) (HAVOH) as a matrix and single-walled carbon nanotubes (SWCNTs) and MXenes as nanofillers were prepared. HAVOH is a recently patented kind of poly(vinyl alcohol) (PVOH) that was modified with diol monomers. MXenes are a new type of inorganic two-dimensional (2D) nanoparticle consisting of carbides, nitrides and carbonitrides. Three series of composites, HAVOH/SWCNTs, HAVOH/MXenes and HAVOH/SWCNTs/MXenes, were prepared using the solvent casting method. Samples were tested with various methods to study their structure, electrical properties, thermal behavior and EMI-shielding properties. HAVOH/3.0 wt.% SWCNTs/3.0 wt.% MXene specimens revealed a shielding effectiveness of 55 dB, which is 122 times better than that of the neat matrix. These results are promising for the fabrication of films with protective effects against EMI.
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http://dx.doi.org/10.1038/s41598-023-46083-2 | DOI Listing |
Sci Rep
December 2024
Institute of Soil and Water Conservation, Northwest A&F University, Yangling, 712100, Shaanxi, China.
Reservoir-operation optimisation is a crucial aspect of water-resource development and sustainable water process management. This study addresses bi-objective optimisation problems by proposing a novel crossover evolution operator, known as the hybrid simulated binary and improved arithmetic crossover (SBAX) operator, based on the simulated binary cross (SBX) and arithmetic crossover operators, and applies it to the Non-dominated Sorting Genetic Algorithms-II (NSGA-II) algorithm to improve the algorithm. In particular, the arithmetic crossover operator can obtain an optimal solution more precisely within the solution space, whereas the SBX operator can explore a broader range of potential high-quality solutions.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
December 2024
School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi, China. Electronic address:
Apo-transferrin (apo-TRF) is a vital protein for maintaining iron balance in the body, which is produced by the liver. Indisulam (IDM) has been extensively used to treat cancer in clinical study and has been identified as a molecular glue. Iron imbalances in the body are believed to encourage the growth and spread of cancer cells.
View Article and Find Full Text PDFWater Res
December 2024
School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, 646000, China. Electronic address:
Synergism of piezoelectricity and photocatalysis is an effective approach for pollutant degradation and removal, and has garnered considerable attention. Nonetheless, great challenges still remain in recombination and slow migration rate of charge carriers. For response, a novel Three-in-One strategy based on MXene/ZnS/FeO (MZF) was developed to enhance the piezoelectric photocatalytic activity via achieving a triple effect: Dual Schottky heterojunction, Interface electric field, and Oxygen vacancy.
View Article and Find Full Text PDFInt J Biomed Imaging
December 2024
Department of Computer Science & Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE) 576104, Manipal, Karnataka, India.
Generative models, especially diffusion models, have gained traction in image generation for their high-quality image synthesis, surpassing generative adversarial networks (GANs). They have shown to excel in anomaly detection by modeling healthy reference data for scoring anomalies. However, one major disadvantage of these models is its sampling speed, which so far has made it unsuitable for use in time-sensitive scenarios.
View Article and Find Full Text PDFJ Geriatr Cardiol
November 2024
Department of Cardiovascular Medicine, Capital Medical University, Beijing, China.
Background: Previous studies have extensively investigated traditional predictors of cardiovascular disease (CVD) development, progression, and prognosis. However, the influence of novel indicators such as Klotho, on CVD prevalence and prognosis in the general population remains unclear.
Method: This was an observational study that utilized cross-sectional and longitudinal methods to examine the general population in the National Health and Nutrition Examination Survey (NHANES) 2007-2016.
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