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Microbial fouling involves the physicochemical interactions between microorganisms and solid surfaces. An electromagnetic field (EMF) may change the diffusion rates of microbial cells and the electrical double layer around the cells and contacting surfaces. In the current study, polycardanol exhibiting antibiofouling activity was modified with ferromagnetic iron oxide (IO) to investigate the EMF effects on bacterial adhesion. When there was a flow of electrolyte that contained bacterial cells, flow-induced EMF was generated according to Faraday's principle. It was observed that the IO-ionic solution (IS)-modified surfaces, with an induced current of 44, 53, 66 nA, showed decreases in the adhesion of bacteria cells more than the unmodified (polycardanol) and IO-nanoparticles-modified ones. In addition to the EMF effects, the nano-scale uniform roughness of the modified surfaces appeared to play an important role in the reduction of cell adhesion. The results demonstrated that the IOIS-modified surface (3.2 × 10mM IO) had the highest antibiofouling activity.
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http://dx.doi.org/10.1080/08927014.2024.2373859 | DOI Listing |
Research (Wash D C)
September 2025
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan 250061, China.
With the rapid advancement of communication technologies, issues of electromagnetic pollution and electromagnetic compatibility have become increasingly severe, heightening the demand for high-performance electromagnetic wave absorption materials. Metal-organic frameworks (MOFs) have flourished in this field owing to their chemical tunability, high porosity, tailored topological structures, and functionality. MOF-derived composites exhibit diverse loss mechanisms and heterogeneous structures, achieving lightweight, broadband, and highly efficient absorption.
View Article and Find Full Text PDFBiofabrication
September 2025
Institute of Macromolecular Chemistry, Institute of Macromolecular Chemistry Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Prague, Prague, 162 06, CZECH REPUBLIC.
Extensive peripheral nerve injuries often lead to the loss of neurological function due to slow regeneration and limited recovery over large gaps. Current clinical interventions, such as nerve guidance conduits (NGCs), face challenges in creating biomimetic microenvironments that effectively support nerve repair. The developed GrooveNeuroTube is composed of hyaluronic acid methacrylate and gelatin methacrylate hydrogel, incorporating active agents (growth factors and antibacterial agents) encapsulated within an NGC conduit made of 3D-printed PCL grid fibers.
View Article and Find Full Text PDFAdv Mater
September 2025
College of Physics, Donghua University, Shanghai, 201620, China.
The 180° switching of the perpendicular Néel vector induced by the spin-orbit torque (SOT) presents significant potential for ultradense and ultrafast antiferromagnetic SOT-magnetoresistive random-access memory. However, its experimental realization remains a topic of intense debate. Here, unequivocal evidence is provided for the SOT-induced 180° switching of the perpendicular Néel vector in collinear antiferromagnetic CrO in a Pt/CrO/Co trilayer structure.
View Article and Find Full Text PDFAdv Mater
September 2025
Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat de València-Universitat Politècnica de València, Camino de Vera s/n, Valencia, 46022, Spain.
Bioorthogonal chemistry that can be controlled through near-infrared (NIR) light is a promising route to therapeutics. This study proposes a method to intracellularly photoactivate prodrugs using plasmonic gold nanostars (AuNSt) and NIR irradiation. Two strategies are followed.
View Article and Find Full Text PDFEnviron Res
September 2025
Department of Occupational Health Engineering, Tehran University of Medical Sciences, Tehran, Iran. Electronic address:
Animal studies indicating an association of exposure to extremely low frequency electromagnetic fields (ELF-EMFs) and noise with reproductive dysfunctions. Nonetheless, the potential impacts of exposure to these hazardous agents on the human prostate gland remain unidentified. To assess the relationship between co-exposure to ELF-EMF and noise and the levels of prostate-specific antigen (PSA), a longitudinal study was conducted over eight years among workers at a thermal power station from 2016 to 2024.
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