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srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/09\/\u56fe\u724711.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/09\/\u56fe\u724711-300x184.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: center;\">\u56fe1\u51a0\u919a\u6676\u4f53\u7ed3\u6784<\/p>\n<p>\u5728\u8fd9\u9879\u5de5\u4f5c\u4e2d\uff0c\u4f5c\u8005\u6a21\u4eff\u751f\u7269\u79bb\u5b50\u901a\u9053\uff0c\u62a5\u9053\u4e86\u4e00\u79cd\u4eff\u751f\u94a0\u79bb\u5b50\u9009\u62e9\u6027\u5668\u4ef6\uff0c\u7531\u591a\u5b54\u51a0\u919a\u6676\u4f53\u7ec4\u6210\u3002\u8be5\u79cd\u6676\u4f53\u7531\u51a0\u919a\u7684\u7a7a\u8154\u5f62\u6210\u7ba1\u72b6\u4e9a\u7eb3\u7c73\u5b54\u3002\u8154\u4f53\u6700\u7a84\u5904\u4e3a0.26 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wp-image-226828\" src=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/09\/\u56fe\u724712.png\" alt=\"\" width=\"600\" height=\"424\" srcset=\"\/\/m.iemloyee.com\/wp-content\/uploads\/2021\/09\/\u56fe\u724712.png 600w, \/\/m.iemloyee.com\/wp-content\/uploads\/2021\/09\/\u56fe\u724712-300x212.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p style=\"text-align: center;\">\u56fe2\u57fa\u4e8e\u591a\u5b54\u51a0\u919a\u6676\u4f53\u7684\u4eff\u751f\u94a0\u79bb\u5b50\u9009\u62e9\u6027\u5668\u4ef6<\/p>\n<p>\u8be5\u9879\u5de5\u4f5c\u7531\u6e29\u5dde\u5927\u5b662018\u7ea7\u5316\u5b66\u4e13\u4e1a\u7855\u58eb\u7814\u7a76\u751f<strong><b>\u53f6\u5a77\u8273<\/b><\/strong>\u548c\u6bd4\u5229\u65f6\u9c81\u6c76\u5927\u5b66\u7269\u7406\u4e0e\u5929\u6587\u5b66\u91cf\u5b50\u56fa\u4f53\u7269\u7406\u7cfb\u535a\u58eb\u540e<strong>\u4faf\u9ad8\u5792<\/strong>\u4e3a\u5171\u540c\u4f5c\u8005\uff0c\u5e7f\u4e1c\u5de5\u4e1a\u5927\u5b66\u6750\u6599\u4e0e\u80fd\u6e90\u5b66\u9662\u4f4e\u7ef4\u6750\u6599\u4e0e\u80fd\u91cf\u5b58\u50a8\u5668\u4ef6\u91cd\u70b9\u5b9e\u9a8c\u5ba4<strong><b>\u9ec4\u5c11\u94ed\u6559\u6388<\/b><\/strong>\uff0c\u6e29\u5dde\u5927\u5b66\u6d59\u6c5f\u7701\u78b3\u6750\u6599\u91cd\u70b9\u5b9e\u9a8c\u5ba4\u5316\u5b66\u4e0e\u6750\u6599\u5de5\u7a0b\u5b66\u9662<strong><b>\u5218\u6960\u6960\u526f\u6559\u6388<\/b><\/strong>\u4ee5\u53ca\u4e2d\u56fd\u79d1\u5b66\u9662\u9752\u5c9b\u751f\u7269\u80fd\u6e90\u4e0e\u8fc7\u7a0b\u7814\u7a76\u6240<strong>\u9ad8\u519b\u7814\u7a76\u5458<\/strong>\u4e3a\u901a\u8baf\u4f5c\u8005\u3002<\/p>\n<p>\u6b64\u9879\u7814\u7a76\u5f97\u5230\u4e86\u56fd\u5bb6\u91cd\u70b9\u7814\u53d1\u8ba1\u5212\u9879\u76ee\u3001\u56fd\u5bb6\u81ea\u7136\u79d1\u5b66\u57fa\u91d1\u3001\u6d59\u6c5f\u7701\u81ea\u7136\u79d1\u5b66\u57fa\u91d1\u548c\u6e29\u5dde\u5e02\u91cd\u5927\u7814\u7a76\u89c4\u5212\u652f\u6301\u3002<\/p>\n<p>\u6587\u7ae0\u94fe\u63a5\uff1ahttps:\/\/www.nature.com\/articles\/s41467-021-25597-1<\/p>\n<p>DOI: 10.1038\/s41467-021-25597-1<\/p>\n<p>\u82f1\u6587\u9898\u76ee<\/p>\n<p>Artificial sodium-selective ionic device based on crown-ether crystals with subnanometer pores<\/p>\n<p>\u82f1\u6587\u6458\u8981<\/p>\n<p>Biological sodium channels ferry sodium ions across the lipid\u00a0membrane while rejecting potassium ions and other metal ions. Realizing such ion selectivity in an artificial solid-state ionic device will enable new separation technologies but remains highly challenging. In this work, we report an artificial sodium-selective ionic device, built on synthesized porous crown-ether crystals which consist of densely packed\u00a00.26-nm-wide pores. The Na<sup>+<\/sup>\u00a0selectivity of the artificial sodium-selective ionic device reached 15 against K<sup>+<\/sup>\u2009, which is comparable to the biological counterpart, 523 against Ca<sup>2+<\/sup>\u2009, which is nearly two orders of magnitude higher than the biological one, and 1128 against Mg<sup>2+<\/sup>\u2009. The selectivity may arise from the size effect and molecular recognition effect. This work may contribute to the understanding of the structure-performance relationship of ion selective nanopores.<\/p>\n<p>\u672c\u6587\u7531\u4f5c\u8005\u6295\u7a3f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u751f\u7269\u79bb\u5b50\u901a\u9053\u5728\u8bb8\u591a\u751f\u547d\u6d3b\u52a8\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u4ed6\u4eec\u53ef\u4ee5\u7cbe\u51c6\u8bc6\u522b\u76ee\u6807\u79bb\u5b50\uff0c\u5177\u6709\u5f88\u9ad8\u7684\u79bb\u5b50\u9009\u62e9\u6027\u3002\u4f8b\u5982\uff0c\u94a0\u901a\u9053\u7684Na+\/K+\u9009\u62e9\u6027\u4e3a~10-102\uff0cNa+\/Ca2&#8230;<\/p>\n","protected":false},"author":11454,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[215],"tags":[],"class_list":["post-226826","post","type-post","status-publish","format-standard","hentry","category-jiedu"],"_links":{"self":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/226826"}],"collection":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/users\/11454"}],"replies":[{"embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=226826"}],"version-history":[{"count":6,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/226826\/revisions"}],"predecessor-version":[{"id":226849,"href":"\/\/m.iemloyee.com\/index.php?rest_route=\/wp\/v2\/posts\/226826\/revisions\/226849"}],"wp:attachment":[{"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=226826"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=226826"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.iemloyee.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=226826"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}