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Dynamically induced spatial segregation in multispecies bacterial bioconvection.
Nat Commun
January 2025
Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel.
Active matter, from motile bacteria to animals, can exhibit striking collective and coherent behavior. Despite significant advances in understanding the behavior of homogeneous systems, little is known about the self-organization and dynamics of heterogeneous active matter, such as complex and diverse bacterial communities. Under oxygen gradients, many bacterial species swim towards air-liquid interfaces in auto-organized, directional bioconvective flows, whose spatial scales exceed the cell size by orders of magnitude.
View Article and Find Full Text PDFTemporal hydrogeochemical evolution of surface water and groundwater in a karst system discharging into a continental-type Ramsar site in the Huasteca Potosina, Mexico.
Environ Sci Pollut Res Int
January 2025
Earth Sciences, Engineering Faculty, Autonomous University of San Luis Potosi, Av. Manuel Nava 8, San Luis Potosí, SLP, Mexico.
Ecosystems such as wetlands have karst groundwater as their primary source of preserving their services and functions. Karst systems are complex hydrogeological systems that are difficult to study because of their complicated functioning mechanism, which requires an interdisciplinary effort based on hydrodynamic assessment and characterization of the hydrogeology of the system. The study area is the Ramsar wetland Ciénaga de Tamasopo (Mexico), which is dependent on the discharge of karst groundwater that is affected by water extraction of extensive sugarcane agriculture and is also the main water source for the rural towns.
View Article and Find Full Text PDFFilter feeding in devil rays is highly sensitive to morphology.
Proc Biol Sci
January 2025
Whitney Laboratory for Marine Bioscience, Department of Biology, University of Florida, 9505 North Ocean Shore Boulevard, St Augustine, FL 3208, USA.
Mobulid rays (manta and devil rays) use a highly specialized filtering apparatus to separate plankton food particles from seawater. Recent studies have indicated that captive vortices form within the microscale pores of the filter, which enhance filtration efficiency through a novel mechanism referred to as ricochet separation. The high throughput and clog resistance of this filtration process have led to the development of several bioinspired engineered filtration systems.
View Article and Find Full Text PDFHydrochemical facies distribution, controlling mechanisms and natural background concentrations of major pollutants in Ganga-Yamuna interfluve aquifer, India.
Environ Pollut
January 2025
Department of Geology, Aligarh Muslim University, Aligarh, India.
Evolution of groundwater genesis in Central Ganga Plain (CGP) is scrutinized with due consideration of hydrochemical and hydrodynamic environment within Quaternary alluviums. Wide variation in hydrochemical facies in CGP indicates a dynamic hydro-geochemical environment influenced from the seasonal rainfall, return flows, canal seepages, and anthropogenic activities. The Ca-HCO facies retaining meteoric nature is characterized by shallow water levels, high recharge rate, high hydraulic conductivity, low salinity and trace elemental load.
View Article and Find Full Text PDFThe investigation of the interaction of warangalone with transferrin as a therapeutic biological macromolecule and the formation of a protein-ligand nanocomplex with superior anticancer activity against lung cancer cells.
Int J Biol Macromol
January 2025
Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200443, China. Electronic address:
Though warangalone has shown anticancer properties against breast cancer cells, its colloidal stability and therapeutic index ought to be improved using a potential strategy, especially via protein-based (nano)carriers. In this research, transferrin was used as a plasma protein for the development of the warangalone-transferrin NPs. To investigate the mechanism underlying the formation of this complex, the interaction between warangalone and transferrin, as well as transferrin NPs, was analyzed using spectroscopic methods.
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