Abstract Micellar solubilization is a transport process occurring in surfactant‐stabilized emulsions that can lead to Marangoni flow and droplet motility. Active droplets exhibit self‐propulsion pairwise repulsion due processes and/or products raising the droplet's interfacial tension. Here, we report with opposite behavior, wherein decreases tension causes attract. We characterize influence of oil chemical structure, nonionic surfactant concentration on tensions flows solubilizing...

The gravitational settling of oil droplets solubilizing in an aqueous micellar solution contained a capillary channel is investigated. motion these active reflects competition between and Marangoni forces, the latter due to interfacial tension gradients generated by differences filled-micelle concentrations along oil-water interface. This studied varying surfactant concentration, density difference droplet continuous phase, viscosity phase. force enhances speed when compared...

Fabrication and processing approaches that facilitate the ease of patterning integration nanomaterials into sensor platforms are significant utility interest. In this work, we report use laser-induced thermal voxels (LITV) to fabricate microscale, planar gas sensors directly from solutions metal salts. LITV offers a facile platform integrate nanocrystalline oxide mixed materials onto heating platforms, with access wide variety compositions morphologies including many transition metals noble...

Metal-organic frameworks (MOFs) have emerged as promising candidates for a wide range of applications due to their high surface area and customizable structures, however, the minimal external hydrophilicity MOFs has limited biomedical implementations. Structuring within polymer is an approach used create hybrid materials that retain many MOF characteristics (e.g. adsorption capacity) but expand mechanical properties well form factors accessible. Using this approach, hybridizing with...

As evidenced by the growth of additive manufacturing, there is extensive value in customization, both terms chemistry and structure. Direct laser writing a promising approach to maskless patterning broad range nano microscale materials. We employ methodology using laser-induced solvothermal voxels, which combines control for nanoparticle synthesis with abilities direct writing, enabling integration nanocrystalline oxides, metals, mixed metal oxides alloys. present an expanded materials that...

Abstract Micellar solubilization is a transport process occurring in surfactant‐stabilized emulsions that can lead to Marangoni flow and droplet motility. Active droplets exhibit self‐propulsion pairwise repulsion due processes and/or products raising the droplet's interfacial tension. Here, we report with opposite behavior, wherein decreases tension causes attract. We characterize influence of oil chemical structure, nonionic surfactant concentration on tensions flows solubilizing...

Abstract High entropy oxides are a class of materials distinguished by the use configurational to drive material synthesis. These being examined for their exciting physiochemical properties and hold promise in numerous fields, such as chemical sensing, electronics, catalysis. Patterning integration high into devices platforms can be difficult due thermal sensitivity incompatibility with many conventional thermally-based processing techniques. In this work, we present laser-based technique,...

Solubilization is a spontaneous transport process occurring in surfactant-stabilized emulsions that can lead to Marangoni flow and droplet motility. Conventionally, active droplets exhibit self-propulsion pairwise repulsion due solubilization processes and/or products raising the droplet’s interfacial tension. Here, we report with opposite behavior, wherein its decrease tension cause attract. We systematically characterize influence of oil structure, nonionic surfactant concentration on...

The study of active colloidal microswimmers with tunable phoretic and self-organizational behaviors is important for understanding out-of-equilibrium systems the design functional, adaptive matter. Solubilizing, self-propelling droplets have emerged as a rich chemical platform exploration behaviors, but isotropic rely on spontaneous symmetry breaking to sustain motion. introduction permanent asymmetry, e.g. in form biphasic Janus droplet, has not been explored previously comprehensive...

<p>The study of active colloidal microswimmers with tunable phoretic and self-organizational behaviors is important for understanding out-of-equilibrium systems the design functional, adaptive matter. Solubilizing, self-propelling droplets have emerged as a rich chemical platform exploration behaviors, but isotropic rely on spontaneous symmetry breaking to sustain motion. The introduction permanent asymmetry, e.g. in form biphasic Janus droplet, has not been explored previously...

The study of active colloidal microswimmers with tunable phoretic and self-organizational behaviors is important for understanding out-of-equilibrium systems the design functional, adaptive matter. Solubilizing, self-propelling droplets have emerged as a rich chemical platform exploration behaviors, but isotropic rely on spontaneous symmetry breaking to sustain motion. introduction permanent asymmetry, e.g. in form biphasic Janus droplet, has not been explored previously comprehensive...

High entropy oxides are a class of materials distinguished by the use configurational to drive material synthesis. These being examined for their exciting physiochemical properties and hold promise in numerous fields, such as chemical sensing, electronics, catalysis. Patterning integration high into devices platforms can be difficult due thermal sensitivity incompatibility with many conventional thermally-based processing techniques. In this work, we present laser-based technique,...

Solubilization is a spontaneous transport process occurring in surfactant-stabilized emulsions that can lead to Marangoni flow and droplet motility. Conventionally, active droplets exhibit self-propulsion pairwise repulsion due solubilization processes and/or products raising the droplet’s interfacial tension. Here, we report with opposite behavior, wherein its decrease tension cause attract. We systematically characterize influence of oil structure, nonionic surfactant concentration on...

The gravitational settling of oil droplets solubilizing in an aqueous micellar solution contained a capillary channel is investigated. motion these active reflects competition between and Marangoni forces, the latter due to interfacial tension gradients generated by differences filled- micelle concentrations along oil-water interface. This studied varying surfactant concentration, density difference droplet continuous phase, viscosity phase. force enhances speed when compared...

Gas-sensitive semiconducting nanomaterials (e.g., metal oxides, graphene and transition dichalcogenides) their heterojunctions hold great promise in chemiresistive gas sensors. However, they often require a separate synthesis method hydrothermal, so-gel, co-precipitation) integration on interdigitated electrodes (IDE) via casting is also associated with weak interfacial properties. This work demonstrates situ laser-assisted patterning of various sensing laser-induced (LIG) foam to form LIG...

The study of active colloidal microswimmers with tunable phoretic and self-organizational behaviors is important for understanding out-of-equilibrium systems the design functional, adaptive matter. Solubilizing, self-propelling droplets have emerged as a rich chemical platform exploration behaviors, but isotropic rely on spontaneous symmetry breaking to sustain motion. introduction permanent asymmetry, e.g. in form biphasic Janus droplet, has not been explored previously comprehensive...