{"id":21494,"date":"2021-09-15T10:43:48","date_gmt":"2021-09-15T04:58:48","guid":{"rendered":"https:\/\/www.revoscience.com\/en\/?p=21494"},"modified":"2021-09-15T10:46:59","modified_gmt":"2021-09-15T05:01:59","slug":"salvinia-secret-how-do-they-maintain-an-air-mattress","status":"publish","type":"post","link":"https:\/\/www.revoscience.com\/en\/salvinia-secret-how-do-they-maintain-an-air-mattress\/","title":{"rendered":"Salvinia secret: how do they maintain an air-mattress ?"},"content":{"rendered":"\n
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Several plants and animals have evolved surfaces with long-term air-retainability to prevent wetting and submersion. One example is\u00a0Salvinia<\/em>, a plant floating on water. The secret \u201chow do they maintain an air-mattress\u201d has been unraveled by researchers.<\/p>\n\n\n\n

Researchers at Jilin University reviewed<\/a> recent progress in the study of Salvinia<\/em> leaves and their artificial replicas. \u201cSalvinia<\/em> has complex multicellular hairs on the upper side of its leaves, and each group of four hairs is connected at the terminal ends, forming an eggbeater structure. The hairs are coated with hydrophobic wax crystals, while the patches at the terminal ends of the hairs lack wax crystals and are, therefore, hydrophilic. These features make the air-water interface more stable, exhibiting long-term air-retention ability,\u201d says author Huichao Jin of Jilin University in Changchun, China.<\/p>\n\n\n\n

Since the air-retention ability of\u00a0Salvinia<\/em>\u00a0leaves was discovered, researchers began to fabricate artificial\u00a0Salvinia<\/em>\u00a0leaves and investigated their potential applications. However, the complex eggbeater structures present a difficult challenge for traditional manufacturing methods. <\/p>\n\n\n\n

In the past decade, photolithography, direct laser lithography, chemical vapor deposition, electrodeposition, electrostatic flocking, 3D printing, chemical etching, and plasma etching recently have been developed for fabricating\u00a0Salvinia<\/em>-inspired structures. <\/p>\n\n\n\n

However, the complex structures make many of these techniques unable to replicate the fine structures. Although direct laser lithography and 3D printing techniques succeed in fabricating fine structures, they cannot fabricate the hydrophilic tips at the end of hairs. Therefore, it is still challenging to fabricate artificial\u00a0Salvinia<\/em>\u00a0leaves.<\/p>\n\n\n\n

The robust air-mattressin Salvinia<\/em> structures acts as a physical barrier for water to reach the substrate. This inspires many engineering applications, including drag reduction, water harvesting, evaporation, and repellence, oil\/water separation, and thermal insulation. These works are currently limited to early laboratory demonstrations. There are still challenges in the development of artificial surfaces suitable for the complexity and variability of the real environment.<\/p>\n\n\n\n

Jin and his colleagues are exploring the potential of\u00a0Salvinia<\/em>\u00a0structures in preventing medical bacterial infection. \u201cThe air-mattress acts as a physical barrier for water to approach the substrate, and it can also act as a physical barrier for preventing bacteria reach substrates,\u201d says Jin. <\/p>\n\n\n\n

He points that traditional antibacterial surfaces involving antibiotics may cause drug resistance while the artificial\u00a0Salvinia<\/em>-inspired surfaces are free of antibiotics. Employing\u00a0Salvinia<\/em>\u00a0structures to prevent medical bacterial infection may be a promising strategy.<\/p>\n","protected":false},"excerpt":{"rendered":"

Researchers at Jilin University\u00a0reviewed\u00a0recent progress in the study of\u00a0Salvinia\u00a0leaves and their artificial replicas.<\/p>\n","protected":false},"author":2,"featured_media":21495,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,17],"tags":[],"class_list":["post-21494","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-curiosity","category-research"],"featured_image_urls":{"full":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",1100,500,false],"thumbnail":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia-200x200.jpg",200,200,true],"medium":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia-675x307.jpg",675,307,true],"medium_large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia-768x349.jpg",750,341,true],"large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia-675x307.jpg",675,307,true],"1536x1536":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",1100,500,false],"2048x2048":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",1100,500,false],"ultp_layout_landscape_large":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",1100,500,false],"ultp_layout_landscape":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",870,395,false],"ultp_layout_portrait":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",600,273,false],"ultp_layout_square":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",600,273,false],"newspaper-x-single-post":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia-760x490.jpg",760,490,true],"newspaper-x-recent-post-big":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia-550x360.jpg",550,360,true],"newspaper-x-recent-post-list-image":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia-95x65.jpg",95,65,true],"web-stories-poster-portrait":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",640,291,false],"web-stories-publisher-logo":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",96,44,false],"web-stories-thumbnail":["https:\/\/www.revoscience.com\/en\/wp-content\/uploads\/2021\/09\/salvinia.jpg",150,68,false]},"author_info":{"info":["RevoScience"]},"category_info":"Curiosity<\/a> Research<\/a>","tag_info":"Research","comment_count":"0","_links":{"self":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/21494","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/comments?post=21494"}],"version-history":[{"count":0,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/posts\/21494\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/media\/21495"}],"wp:attachment":[{"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/media?parent=21494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/categories?post=21494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.revoscience.com\/en\/wp-json\/wp\/v2\/tags?post=21494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}