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Fluids are amorphous substances, mostly liquids or gases, that flow under an applied shear stress and have the tendency to assume the shape of their container.
Monitoring sweat metabolites with wearable devices is challenging. Here the authors report an all-flexible chronoepifluidic SERS patch for label-free and chronometric profiling of sweat metabolites.
In this study, dynamic X-ray techniques are used to directly observe 3D secondary flows in moving grains - shedding light on complex behaviours in granular materials and opaque substances like pastes, emulsions, and other soft matter.
Water’s structure and viscosity change markedly under reduced dimensionality. This Review explores how viscosity depends on the dimensionality of confinement (1D or 2D) and examines the interplay between geometric and ionic constraints in shaping transport properties within angstrom-scale water channels.
Spherical aggregates of mouse stem cells exhibit symmetry breaking by forming an elongated axis. This extension is driven by a recirculating Marangoni-like tissue flow, providing insights into the tissue mechanics underlying embryonic development.
David Zwicker discusses the delicate balance between entropy and enthalpy that determines whether fluids comprising many components mix or phase separate.
Collectives of self-driven particles display a plethora of behaviours that are gradually being discovered. Experiments with rotating particles in intermediate Reynolds flow now harness a mostly unexplored inertial regime for synthetic active matter.
Engineering synthetic cells faces the challenge of transferring biomolecules, such as nucleic acids and proteins, through simple lipid bilayers. Now, a study reveals how energy-dissipating oil droplets can create reconfigurable passageways shuttling biomolecules across liposomal compartments.
