{"id":250259,"date":"2023-05-17T05:50:58","date_gmt":"2023-05-16T21:50:58","guid":{"rendered":"\/\/m.iemloyee.com\/?p=250259"},"modified":"2023-05-15T17:51:27","modified_gmt":"2023-05-15T09:51:27","slug":"nat-sustain-%e8%b6%85%e7%81%b5%e6%95%8f%e5%92%8c%e9%ab%98%e9%80%89%e6%8b%a9%e6%80%a7%e7%9a%84%e9%94%b6%e7%a6%bb%e5%ad%90%e6%a3%80%e6%b5%8b","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=250259","title":{"rendered":"Nat. Sustain: \u8d85\u7075\u654f\u548c\u9ad8\u9009\u62e9\u6027\u7684\u9536\u79bb\u5b50\u68c0\u6d4b"},"content":{"rendered":"
Nat. Sustain: <\/strong>\u8d85\u7075\u654f\u548c\u9ad8\u9009\u62e9\u6027\u7684\u9536\u79bb\u5b50\u68c0\u6d4b<\/strong><\/p>\n charfreen<\/strong><\/p>\n \u4e00\u3001\u3010\u5bfc\u8bfb\u3011<\/strong><\/p>\n \u00a0 \u00a0 \u00a0 \u00a02021\u5e74\u65e5\u672c\u653f\u5e9c\u51b3\u5b9a\u5c06\u798f\u5c9b\u7b2c\u4e00\u6838\u7535\u7ad9\u7684\u4e0a\u767e\u4e07\u5428\u6838\u5e9f\u6c34\u6392\u5165\u5927\u6d77\u7684\u65b0\u95fb\u8f70\u52a8\u4e86\u5168\u4e16\u754c\u3002\u798f\u5c9b\u7b2c\u4e00\u6838\u7535\u7ad9\u7684\u6838\u5e9f\u6c34\u542b\u94ef\u3001\u9536\uff08Sr\uff09\u3001\u6c1a\u7b49\u591a\u79cd\u653e\u5c04\u6027\u7269\u8d28\uff0c\u5c24\u5176\u662fSr\uff0c\u5177\u6709\u9ad8\u6bd2\u6027\uff0c\u5176\u653e\u5c04\u6027\u534a\u8870\u671f\u957f\u8fbe29\u5e74\u3002\u5f53\u9536\u8fdb\u5165\u9aa8\u7ec4\u7ec7\u540e,\u4e3b\u8981\u84c4\u79ef\u4e8e\u957f\u9aa8\u9760\u8fd1\u9aa8\u9ad3\u8154\u7684\u65e0\u673a\u8d28\u4e2d\uff0c\u8fd8\u4f1a\u6c89\u79ef\u5728\u9aa8\u9abc\u548c\u98df\u7269\u94fe\u4e2d\uff0c\u5438\u5165\u8fc7\u91cf\u7684\u9536\u53ef\u5bfc\u81f4\u5fc3\u810f\u548c\u795e\u7ecf\u7cfb\u7edf\u75be\u75c5\uff0c\u5305\u62ec\u4e25\u91cd\u7684\u547c\u5438\u56f0\u96be\u3001\u8fc7\u654f\u53cd\u5e94\u548c\u6781\u5ea6\u5fc3\u8df3\u8fc7\u901f\u3002\u6b64\u5916\uff0c\u6709\u8bc1\u636e\u8868\u660e\uff0c90<\/sup>Sr\u7684\u03b2\u8f90\u5c04\u53ef\u5f15\u8d77\u9aa8\u764c\u548c\u767d\u8840\u75c5\u3002\u56e0\u6b64\u5982\u4f55\u5904\u7406\u8f90\u5c04\u6027\u9536\u79bb\u5b50\u4ee5\u53ca\u5b9e\u73b0\u5feb\u901f\u68c0\u6d4b\u5f15\u8d77\u4e86\u4eba\u4eec\u7684\u9ad8\u5ea6\u91cd\u89c6\u3002<\/p>\n \u00a0 \u00a0 \u00a0 \u4f20\u7edf\u7684\u5149\u8c31\u548c\u7535\u4f4d\u68c0\u6d4b\u6280\u672f\u9700\u8981\u590d\u6742\u7684\u6837\u54c1\u9884\u5904\u7406\u548c\u5927\u578b\u4eea\u5668\uff0c\u8fd9\u4f7f\u5f97\u5b83\u4eec\u4e0d\u9002\u5408\u76f4\u63a5\u7684\u73b0\u573a\u6d4b\u8bd5\u548c\u5168\u9762\u7684Sr\u76d1\u6d4b\u3002\u8131\u6c27\u6838\u7cd6\u6838\u9178\uff08DNA\uff09\u751f\u7269\u4f20\u611f\u5668\u5177\u6709\u5bf9\u7279\u5b9a\u7269\u8d28\u7684\u7279\u5b9a\u8bc6\u522b\u4f4d\u70b9\uff0c\u4e3a\u5feb\u901f\u3001\u65b9\u4fbf\u548c\u5ec9\u4ef7\u68c0\u6d4bSr\u63d0\u4f9b\u4e86\u4e00\u79cd\u6709\u524d\u666f\u7684\u66ff\u4ee3\u65b9\u6cd5\u3002\u4f46\u662f\u76ee\u524d\u5b58\u5728\u7684DNA\u8367\u5149\u5206\u5b50\u9700\u8981\u6dfb\u52a0\u989d\u5916\u7684\u91d1\u5c5e\u79bb\u5b50\u6765\u534f\u52a9\u89e6\u53d1G-quadruplex\uff08\u9e1f\u560c\u5464\u56db\u8054\u4f53\uff09\u56db\u91cd\u7ed3\u6784\u7684\u5f62\u6210\uff0c\u540c\u65f6\u8868\u73b0\u51fa\u8f83\u4f4e\u7684\u521d\u59cb\u8367\u5149\u5f3a\u5ea6\uff0c\u5e76\u4e14\u76f8\u5173\u68c0\u6d4b\u673a\u7406\u5c1a\u4e0d\u6e05\u695a\u3002\u56e0\u6b64\uff0c90<\/sup>Sr\u7684\u7075\u654f\u68c0\u6d4b\u7531\u4e8e\u7f3a\u4e4f\u8bc1\u660e\u5176\u5b58\u5728\u7684\u7279\u5f81\u80fd\u91cf\u5c04\u7ebf\u4f9d\u7136\u662f\u4e00\u4e2a\u6311\u6218<\/strong>\u3002<\/p>\n \u4e8c\u3001\u3010\u6210\u679c\u63a0\u5f71\u3011<\/strong><\/p>\n \u00a0 \u00a0 \u00a0 \u8fd1\u65e5\uff0c\u6d77\u5357\u5927\u5b66\u738b\u5b81\u6559\u6388\u56e2\u961f\u7814\u7a76\u4e86\u4e00\u79cdDNA\u94fe\u751f\u7269\u4f20\u611f\u5668<\/strong>\uff0c\u80fd\u591f\u4ee5\u8d85\u7075\u654f\u548c\u9ad8\u9009\u62e9\u6027\u7684\u65b9\u5f0f\u68c0\u6d4bSr2+<\/sup>\u79bb\u5b50\u3002\u5229\u7528\u8367\u5149\u5206\u5b50\u786b\u9ec4\u7d20T\uff08ThT\uff09\u751f\u6210ThT\u8bf1\u5bfc\u7684G-\u56db\u94feDNA\uff08TiG4-DNA\uff09<\/strong>\u3002ThT\u8bf1\u5bfcDNA\u914d\u4f53\uff08\u4e00\u4e2a\u5bcc\u542bG\u7684DNA\u7247\u6bb55\u2032-AGGGTTAGGGTTAGGGTTAGGG-3\u2032)\u8f6c\u53d8\u4e3aG-\u56db\u91cd\u7ed3\u6784\u3002\u7531\u4e8eSr2+<\/sup>\u79bb\u5b50\u5bf9G-\u56db\u8054\u4f53\u7684\u7ed3\u5408\u4eb2\u548c\u529b\u9ad8\u4e8eThT\uff0c\u968f\u540e\u52a0\u5165\u7684Sr2+<\/sup>\u79bb\u5b50\u5728TiG4-DNA\u4e2d\u4e0eThT\u7ade\u4e89\uff0c\u5bfc\u81f4ThT\u7684\u91ca\u653e\uff0c\u4ece\u800c\u964d\u4f4e\u4e86\u68c0\u6d4bSr2+<\/sup>\u79bb\u5b50\u7684\u8367\u5149\u5f3a\u5ea6\uff0c\u5b9e\u73b0\u4e862.11 nM\u7684\u8d85\u4f4e\u68c0\u51fa\u9650\u548c\u8f83\u9ad8\u7684\u68c0\u6d4b\u9009\u62e9\u6027\u3002\u76f8\u5173\u7684\u7814\u7a76\u6210\u679c\u4ee5\u201cUltrasensitive and highly selective detection of strontium ions<\/strong>\u201d\u4e3a\u9898\u53d1\u8868\u5728nature sustainability<\/em><\/strong>\u4e0a\u3002<\/p>\n \u4e09\u3001\u3010\u6838\u5fc3\u521b\u65b0\u70b9\u3011<\/strong><\/p>\n \u221a<\/strong> \u4f5c\u8005\u5f00\u53d1\u4e86\u4e00\u79cd\u65b0\u578b\u751f\u7269\u4f20\u611f\u5668\uff0c\u5229\u7528\u4e00\u79cd\u8367\u5149\u67d3\u6599<\/strong>ThT<\/strong>\u89e6\u53d1<\/strong>DNA<\/strong>\u6298\u53e0\u5f62\u6210\u9e1f\u560c\u5464\u56db\u91cd\u7ed3\u6784<\/strong>\u3002\u7531\u4e8e\u8be5DNA\u7ed3\u6784\u5bf9Sr2+<\/sup>\u5177\u6709\u8f83\u9ad8\u7684\u7ed3\u5408\u4eb2\u548c\u529b\uff0c\u5f53\u66b4\u9732\u4e8e\u5fae\u91cfSr2+<\/sup>\u65f6\uff0cThT<\/strong>\u88ab\u91ca\u653e\uff0c\u8fdb\u800c\u5bfc\u81f4\u8367\u5149\u5f3a\u5ea6\u8870\u51cf<\/strong>\uff0c\u5b9e\u73b0\u8d85\u4f4e\u68c0\u6d4b\u9650\u3002<\/p>\n \u221a <\/strong>G-\u56db\u5143\u4f53\u4e2dSr2+<\/sup>\u5408\u9002\u7684\u914d\u4f4d\u7ed3\u6784\u4f7f\u5f97Sr2+<\/sup>\u79bb\u5b50\u5bf9\u5176\u4ed6\u5171\u5b58\u91d1\u5c5e\u79bb\u5b50\u5177\u6709\u5f88\u5f3a\u7684\u7ade\u4e89\u529b\uff0c\u9009\u62e9\u6027\u8fdc\u9ad8\u4e8e\u5177\u6709\u76f8\u4f3c\u7279\u6027\u7684Ca2+<\/sup>\u3002<\/p>\n \u221a<\/strong> \u91c7\u7528\u6269\u5c55x\u5c04\u7ebf\u5438\u9644\u7cbe\u7ec6\u7ed3\u6784<\/strong>(EXAFS)\u5206\u6790\u786e\u5b9a\u4e86Sr\u5728G-\u56db\u8054\u4f53\u4e2d\u7684\u7cbe\u786e\u5316\u5b66\u73af\u5883<\/strong>\uff0cDFT\u7406\u8bba\u8ba1\u7b97\u8868\u660eSr\u4e0eG-\u56db\u65b9\u5e73\u9762\u4e2dG\u5355\u4f4d\u7684\u7fb0\u57faO\u539f\u5b50\u76f8\u914d\u4f4d\uff0c\u8bc1\u660e\u4e86G-\u56db\u91cd\u7ed3\u6784\u5bf9Sr2+<\/sup>\u79bb\u5b50\u5177\u6709\u8f83\u9ad8\u7684\u4eb2\u548c\u529b<\/strong>\u3002<\/p>\n \u56db\u3001\u3010\u6570\u636e\u6982\u89c8\u3011<\/strong><\/p>\n \u56fe<\/strong>1 TiG4-DNA<\/strong>\u7684<\/strong>|<\/strong>\u8367\u5149\u7279\u6027<\/strong> a<\/strong>\uff0c<\/strong>Sr2+<\/sup>\u79bb\u5b50\u5bf9\u8367\u5149\u5f3a\u5ea6\u7684\u5f71\u54cd\uff0c\u6fc0\u53d1\u6ce2\u957f\u4e3a446 nm\uff0c\u53d1\u5c04\u6ce2\u957f\u4e3a490 nm\u3002b<\/strong>\uff0c<\/strong>\u8367\u5149\u5f3a\u5ea6\u4e0eSr2+<\/sup>\u79bb\u5b50\u6d53\u5ea6\u7684\u62df\u5408\u3002c<\/strong>\uff0c<\/strong>Sr2+<\/sup>\u79bb\u5b50\u6d53\u5ea6\u4e0e\u8367\u5149\u5f3a\u5ea6\u7684\u7ebf\u6027\u5173\u7cfb\u3002d<\/strong>\uff0c<\/strong>\u5355\u4e2a\u79bb\u5b50\u89e6\u53d1\u7684\u8367\u5149\u8870\u51cf(\u5728100 nM\u5904)\u3002F<\/em>0<\/sub>, TiG4-DNA\u7684\u521d\u59cb\u8367\u5149\u5f3a\u5ea6\u3002e<\/strong>\uff0c<\/strong>\u6f5c\u5728\u5e72\u6270\u79bb\u5b50\u5bf9TiG4-DNA\u5bf9Sr2+<\/sup>\u79bb\u5b50(100 nM)\u8367\u5149\u54cd\u5e94\u7684\u5f71\u54cd\u3002f<\/strong>\uff0c<\/strong>Ca2+<\/sup>\u3001Ba2+<\/sup>\u3001Na+<\/sup>\u3001K+<\/sup>\u7b49\u591a\u79cd\u79bb\u5b50(10 mM)\u5171\u5b58\u5bf9Sr2+<\/sup>\u79bb\u5b50(100 nM)\u8367\u5149\u8870\u51cf\u7684\u5f71\u54cd\u3002\u5728b,c\u4e2d\uff0c\u6570\u636e\u4ee5\u5e73\u5747\u503c\u00b1\u6807\u51c6\u5dee(n = 3)\u8868\u793a\u3002\u5728d-f\u4e2d\uff0c\u6570\u636e\u4ee5\u5355\u4e2a\u503c\u00b1\u6807\u51c6\u5dee(n = 3)\u8868\u793a\u3002\u00a9 2023 Springer Nature<\/p>\n \u56fe<\/strong>2<\/strong> TiG4-DNA<\/strong>\u7528\u4e8e<\/strong>Sr2+<\/sup><\/strong>\u79bb\u5b50\u68c0\u6d4b\u7684\u9002\u7528\u6027\u3002<\/strong>a<\/strong>\uff0c<\/strong>\u73af\u5883\u6c34\u6837\u4e2d\u9536\u79bb\u5b50\u7684\u68c0\u6d4b\u3002\u8fd8\u663e\u793a\u4e86\u901a\u8fc7ICP-MS\u83b7\u5f97\u7684\u68c0\u6d4b\u7ed3\u679c\u3002\u6570\u636e\u4ee5\u5747\u6570\u00b1\u6807\u51c6\u5dee(n = 10)\u8868\u793a\uff0c\u5e76\u663e\u793a\u6bcf\u4e2a\u8bd5\u9a8c\u7684\u6570\u636e\u70b9\u3002b<\/strong>\uff0c<\/strong>\u76ee\u524d\u53ef\u7528\u7684\u5316\u5b66\u65b9\u6cd5\u9002\u7528\u7684Sr2+<\/sup>\u79bb\u5b50\u68c0\u6d4b\u8303\u56f4\u7684\u6bd4\u8f83\u3002\u53c2\u8003\u7f16\u53f7\u8868\u793a\u7684\u65b9\u6cd5\u89c1\u8865\u5145\u88681\u3002\u7f8e\u56fd\u73af\u4fdd\u7f72\u89c4\u5b9a\u7684\u996e\u7528\u6c34\u4e2dSr2+<\/sup>\u7684\u6d53\u5ea6\u9650\u503c\u5982\u7eff\u8272\u865a\u7ebf\u6240\u793a\u3002\u00a9 2023 Springer Nature<\/p>\n \u56fe<\/strong>3 TiG4-DNA<\/strong>\u4e0e<\/strong>Sr2+<\/sup><\/strong>\u79bb\u5b50\u3001<\/strong>ThT<\/strong>\u7b49\u5178\u578b\u91d1\u5c5e\u79bb\u5b50\u7684<\/strong>|<\/strong>\u7ed3\u5408\u673a\u5236\u3002<\/strong>a<\/strong>\uff0c<\/strong>\u4e0eSr2+<\/sup>\u79bb\u5b50\u76f8\u4e92\u4f5c\u7528\u524d\u540eTiG4-DNA O 1s\u7684\u9ad8\u5206\u8fa8\u7387XPS\u8c31\u3002b-d<\/strong>\uff0c<\/strong>EXAFS\u5206\u6790\u7684k\u7a7a\u95f4\u8c31(b)\uff0cr\u7a7a\u95f4\u8c31(c)\u548c\u4e0eTiG4-DNA\u7ed3\u5408\u7684Sr2+\u79bb\u5b50\u7684\u7535\u8377\u5206\u5e03(d)\u3002e,f<\/strong>\uff0c<\/strong>\u8ba1\u7b97\u5f97\u5230\u7684Sr2+<\/sup>\u79bb\u5b50(e)\u548cThT\u53ca\u5176\u4ed6\u5178\u578b\u91d1\u5c5e\u79bb\u5b50(f)\u7684\u7535\u5b50\u5bc6\u5ea6\u7b49\u503c\u9762\u3002\u9ec4\u8272\u548c\u9752\u8272\u7b49\u503c\u9762\u5206\u522b\u4ee3\u8868\u7535\u8377\u7684\u79ef\u7d2f\u548c\u6d88\u8017\u3002\u00a9 2023 Springer Nature<\/p>\n \u56fe<\/strong>4 TiG4DNA<\/strong>\u7684<\/strong>Sr2+<\/sup><\/strong>\u79bb\u5b50\u68c0\u6d4b\u673a\u5236\u793a\u610f\u56fe\u3002<\/strong>a<\/strong>\uff0c<\/strong>TiG4-DNA\u68c0\u6d4bSr2+<\/sup>\u79bb\u5b50\u7684\u673a\u7406\u3002\u7814\u7a76\u4e86\u8367\u5149\u589e\u5f3a\u7684\u673a\u7406\u3002\u4e0e\u5176\u4ed6\u91d1\u5c5e\u79bb\u5b50\u548c\u8367\u5149\u5206\u5b50\u76f8\u6bd4\uff0cSr2+<\/sup>\u79bb\u5b50\u5177\u6709\u66f4\u9ad8\u7684\u7ade\u4e89\u529b\uff0c\u8fd9\u4f7f\u5f97TiG4-DNA\u5bf9Sr2+<\/sup>\u79bb\u5b50\u7684\u68c0\u6d4b\u5177\u6709\u8f83\u9ad8\u7684\u7279\u5f02\u6027\u3002b<\/strong>\uff0c<\/strong>\u4e0d\u540c\u91d1\u5c5e\u79bb\u5b50\u4e0eThT\u4e0eG-\u56db\u91cd\u7edc\u5408\u7269\u76f8\u4e92\u4f5c\u7528\u7684\u6bd4\u8f83\u3002\u7ed9\u51fa\u4e86\u8ba1\u7b97\u5f97\u5230\u7684\u91d1\u5c5e\u79bb\u5b50\u5438\u9644\u80fd\u3002\u00a9 2023 Springer Nature<\/p>\n \u4e94\u3001\u3010\u6210\u679c\u542f\u793a\u3011<\/strong><\/p>\n ThT\u4f5c\u4e3a\u4e00\u79cd\u6c34\u6eb6\u6027\u8367\u5149\u67d3\u6599\uff0c\u5728\u6c34\u73af\u5883\u4e2d\u663e\u793a\u5fae\u5f31\u8367\u5149\uff0c\u7531\u4e8eG-\u56db\u91cd\u4f53\u4e0eThT\u4e4b\u95f4\u7684\u9759\u7535\u76f8\u4e92\u4f5c\u7528\u548c\u03c0-\u03c0\u53e0\u52a0<\/strong>\u4f7fThT\u53d1\u751f\u6784\u8c61\u8f6c\u53d8\uff0c\u4f7fTiG4-DNA\u5177\u6709\u8f83\u9ad8\u7684\u521d\u59cb\u8367\u5149\u5f3a\u5ea6\uff0c\u56e0\u6b64\u4f5c\u8005\u9009\u7528\u8fd9\u79cd\u9e1f\u560c\u5464\u56db\u8054\u4f53\u4e0eSr2+<\/sup>\u4e4b\u95f4\u5b58\u5728\u7684\u53ef\u7f6e\u6362\u5173\u7cfb\u5c55\u793a\u4e86\u4e00\u79cd\u9ad8\u7075\u654f\u5ea6\u7684\u751f\u7269\u4f20\u611f\u5668\u6765\u68c0\u6d4bSr2+<\/sup>\u3002\u4e0eThT\u76f8\u6bd4\uff0cSr2+<\/sup>\u79bb\u5b50\u5bf9G-\u56db\u8054\u4f53\u7ed3\u6784\u5177\u6709\u66f4\u9ad8\u7684\u7ed3\u5408\u4eb2\u548c\u529b\uff0cThT\u4e0eG-\u56db\u8054\u4f53\u7ed3\u6784\u4e4b\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u5bb9\u6613\u88abSr2+<\/sup>\u79bb\u5b50\u7834\u574f\uff0cDFT\u8ba1\u7b97\u8868\u660e\uff0c\u8f83\u5c0f\u534a\u5f84\u7684\u91d1\u5c5e\u79bb\u5b50(\u5305\u62ecNa+<\/sup>\u548cCa2+<\/sup>)\u7684\u7ed3\u5408\u5bfc\u81f4G-\u56db\u91cd\u7ed3\u6784\u5e73\u9762\u7684\u7f29\u5c0f\uff0c\u4ece\u800c\u964d\u4f4e\u4e86G-\u56db\u91cd\u7ed3\u6784\u7684\u7a33\u5b9a\u6027\u3002\u8be5\u68c0\u6d4b\u65b9\u6cd5\u5b9e\u73b0\u4e86\u8d85\u7075\u654f\u7684\u68c0\u6d4b\u6027\u80fd\uff0c\u8d85\u4f4e\u68c0\u51fa\u9650\u4e3a2.11 nM\uff0c\u5177\u6709\u8f83\u9ad8\u7684\u9009\u62e9\u6027<\/strong>\uff0c\u662f\u76ee\u524d\u6027\u80fd\u6700\u597d\u7684Sr2+<\/sup>\u79bb\u5b50\u68c0\u6d4b\u65b9\u6cd5\u4e4b\u4e00\u3002\u8d85\u4f4e\u7684\u68c0\u51fa\u9650\u6781\u5927\u5730\u62d3\u5bbd\u4e86\u8be5\u65b9\u6cd5\u5728\u542b\u6709\u5fae\u91cfsr\u7684\u591a\u79cd\u73af\u5883\u4e0b\u7684\u9002\u7528\u6027\u3002<\/p>\n<\/p>\n
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