Digital holography has emerged as a powerful tool for investigating dynamic particle behaviors in the spatiotemporal domain. However, the performance of this technique is fundamentally limited by the system's space-time bandwidth, leading to a trade-off between accuracy and speed. This study presents a novel, to the best of our knowledge, approach integrating event-driven neuromorphic imaging with digital holography for dynamic particle imaging. Through comprehensive analysis of synthetic and real-world experiments, we demonstrate that the proposed method significantly improves data efficiency and hologram contrast by over tenfold. This technique, termed "neuromorphic holography," offers promising applications for efficient dynamic particle imaging.
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http://dx.doi.org/10.1364/OL.548088 | DOI Listing |
J Chromatogr A
March 2025
Karlsruhe Institute of Technology, Institute of Process Engineering in Life Sciences, Section IV Biomolecular Separation Engineering, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany. Electronic address:
Developing a downstream purification process for replication-competent enveloped virus particles presents a significant challenge. This is largely due to the highly complex particle structures, as well as complexities of emerging purification modalities for such virus particles. In this study, an unexpected fluid-dynamic effect was observed during the elution of enveloped virus particles from an ion exchange chromatography monolith.
View Article and Find Full Text PDFMar Pollut Bull
March 2025
Department of Environmental Engineering, Hanseo University, Seosan City 356-706, Republic of Korea.
Microplastics (MPs) are widely distributed as a global pollutant, with dynamic patterns driven by horizontal diffusion and vertical mixing in marine ecosystems across different hydrological seasons and regions. This study employed MATLAB for image processing and interactive operations to extract data from existing studies on the Chinese Marginal Seas conducted from 2016 to 2022, focusing on the distribution, sources, and transport processes of MPs. The results revealed that the Bohai Sea exhibited the highest pollution levels during both the rainy (9328.
View Article and Find Full Text PDFWater Res
February 2025
Division Water Quality and Health, Department of Pharmacology, Physiology, and Microbiology, Karl Landsteiner University of Health Sciences, Dr.-Karl-Dorrek-Straße 30, A-3500 Krems an der Donau, Austria; Institute of Chemical, Environmental and Bioscience Engineering, Microbiology and Molecular Diagnostics E166/5/3, TU Wien, Gumpendorferstraße 1a, A-1060 Vienna, Austria. Electronic address:
Iron and manganese (Fe/Mn) often lead to aesthetic quality issues in water supply. Strong and problematic black-brown particle formation was persistently observed in an alluvial drinking water well, even though oxygen enrichment probes, intended for in situ i.e.
View Article and Find Full Text PDFTissue Cell
March 2025
Tissue Engineering and Regenerative Medicine Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran. Electronic address:
Background: Cell therapy utilizing mesenchymal stem cells, which have the ability to differentiate into different lineages, has garnered significant attention in recent years. Melissa officinalis is rich in biologically active compounds and exhibits antioxidant activity, antimicrobial properties, and sedative effects. Nanoemulsions can facilitate the effective transfer of substances and also protect drugs and biological materials from environmental factors.
View Article and Find Full Text PDFACS Nano
March 2025
Hefei National Research Center for Physical Sciences at the Microscale, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
The translocation dynamics of cells and particles through geometric constrictions are critical in biological and biomedical processes from splenic filtration to tumor metastasis. While particle stiffness plays a key role, its role in highly nonequilibrium states remains poorly understood. Here, we present a multiscale model to investigate the impact of particle stiffness on the translocation dynamics in microfluidic channels.
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