98%
921
2 minutes
20
Understanding bacterial adhesion at the nanoscale is crucial for elucidating biofilm formation, enhancing biosensor performance, and designing advanced biomaterials. However, the dynamics of the critical transition from reversible to irreversible adhesion has remained elusive due to analytical constraints. Here, we probed this adhesion transition, unveiling nanoscale, step-like bacterial approaches to substrates using a plasmonic imaging technique. This method reveals the discontinuous nature of adhesion, emphasizing the complex interplay between bacterial extracellular polymeric substances (EPS) and substrates. Our findings not only deepen our understanding of bacterial adhesion but also have significant implications for the development of theoretical models for biofilm management. By elucidating these nanoscale step-like adhesion processes, our work provides avenues for the application of nanotechnology in biosensing, biofilm control, and the creation of biomimetic materials.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1021/acsnano.4c04354 | DOI Listing |
Microsyst Nanoeng
September 2025
Center for Terahertz Waves, College of Precision Instrument and Optoelectronics Engineering, and the Key Laboratory of Optoelectronics Information and Technology (Ministry of Education), Tianjin University, Tianjin, 300072, China.
Terahertz communication systems demand versatile devices capable of simultaneously controlling propagating waves and surface plasmon polaritons (SPPs) in far-field (FF) and near-field (NF) channels, yet existing solutions are constrained by volatile operation, single-function limitations, and the inability to integrate NF and FF functionalities. Here, we present a nonvolatile reconfigurable terahertz metasurface platform leveraging the phase-change material GeSbTe(GST) to achieve on-demand dual-channel modulation-a first in the terahertz regime. By exploiting the stark conductivity contrast of GST between amorphous and crystalline states, our design enables energy-efficient switching between NF-SPP manipulation and FF-wavefront engineering without requiring continuous power input.
View Article and Find Full Text PDFProg Mol Biol Transl Sci
September 2025
Nanobiology and Nanozymology Research Laboratory, National Institute of Animal Biotechnology (NIAB), Opposite Journalist Colony, Near Gowlidoddy, Hyderabad, Telangana, India; Regional Centre for Biotechnology (RCB), Faridabad, Haryana, India. Electronic address:
Biosensors are rapidly emerging as a key tool in animal health management, therefore, gaining a significant recognition in the global market. Wearable sensors, integrated with advanced biosensing technologies, provide highly specialized devices for measuring both individual and multiple physiological parameters of animals, as well as monitoring their environment. These sensors are not only precise and sensitive but also reliable, user-friendly, and capable of accelerating the monitoring process.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2025
National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai 200240, China.
Integrating surface-enhanced fluorescence (SEF) and surface-enhanced Raman spectroscopy (SERS) into a single probe is a natural step forward for plasmon-enhanced spectroscopy (PES), as SEF enables enhanced fluorescent imaging for fast screening of targets, while SERS allows ultrasensitive trace molecular characterization with specificity. However, many challenges remain, e.g.
View Article and Find Full Text PDFBiomater Res
September 2025
Laboratory of Medical Imaging, The First People's Hospital of Zhenjiang, Zhenjiang 212001, P. R. China.
Mesoporous metal nanomaterials (MMNs) have gained interest in biomedicine for their unique properties, but their potential is limited by the predominance of spherical shapes and the neglect of morphological effects on biological activity, which hinders the reasonable evaluation of morphology-dependent enzyme-like activities and biological behaviors and its further biomedical applications. It is therefore imperative to find an effective and facile method to design and prepare MMNs with novel, well-defined morphologies. Herein, we fabricated 3 mesoporous platinum nanoenzymes including sphere, rod, and bipyramid topologies [Au@mesoPt sphere, Au@mesoPt rod, and Au@mesoPt bipyramid nanoparticles (NPs), respectively] via a facile atomic layer deposition method using gold NPs (Au NPs) as the templated cores and Pluronic F127 as a structure-directing agent.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Institute of Molecular Virology and Immunology, Department of Microbiology and Immunology, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China. Electronic address:
Epstein-Barr virus (EBV) nuclear antigen 1 (EBNA1) sustains viral latency and drives oncogenesis in EBV-driven malignancies such as nasopharyngeal carcinoma and lymphomas. The dimerization of EBNA1 acts as an indispensable molecular switch governing EBV latency and oncogenesis. Disruption of EBNA1 dimerization is a promising strategy, but existing small-molecule inhibitors lack sufficient specificity.
View Article and Find Full Text PDF