Free-standing liquid membranes as unusual particle separators
| Autor: | Birgitt Boschitsch Stogin, Luke F. Gockowski, Jing Wang, Tak Sing Wong, Houston Claure, Hannah Feldstein |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Medical diagnostic
Multidisciplinary Materials science Open surgery Materials Science SciAdv r-articles 02 engineering and technology Particle separators 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 6. Clean water 0104 chemical sciences Membrane Chemical engineering Applied Sciences and Engineering Particle 0210 nano-technology Research Articles Research Article |
| Zdroj: | Science Advances |
| ISSN: | 2375-2548 |
| Popis: | Membranes that have large-pass small-no-pass particle selectivity can allow previously unachievable applications. Separation of substances is central to many industrial and medical processes ranging from wastewater treatment and purification to medical diagnostics. Conventional solid-based membranes allow particles below a critical size to pass through a membrane pore while inhibiting the passage of particles larger than that critical size; membranes that are capable of showing reversed behavior, that is, the passage of large particles and inhibition of small ones, are unusual in conventional engineering applications. Inspired by endocytosis and the self-healing properties of liquids, we show that free-standing membranes composed entirely of liquid can be designed to retain particles smaller than a critical size given the particle inertial properties. We further demonstrate that these membranes can be used for previously unachievable applications, including serving as particle barriers that allow macroscopic device access through the membrane (for example, open surgery) or as selective membranes inhibiting gas/vapor passage while allowing solids to pass through them (for example, waste/odor management). |
| Databáze: | OpenAIRE |
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