{"id":229284,"date":"2021-11-08T06:46:32","date_gmt":"2021-11-07T22:46:32","guid":{"rendered":"\/\/m.iemloyee.com\/?p=229284"},"modified":"2021-11-07T21:46:45","modified_gmt":"2021-11-07T13:46:45","slug":"%e7%8e%8b%e5%ae%9a%e8%83%9c%e6%a2%81%e6%95%8f%e6%95%8f-jacs%ef%bc%9a%e9%a6%96%e6%ac%a1%e6%8a%a5%e9%81%93%ef%bc%81%e5%8d%95%e5%8e%9f%e5%ad%90%e5%82%ac%e5%8c%96%e5%89%82%e8%bf%9b%e5%86%9b%e4%ba%ba","status":"publish","type":"post","link":"\/\/m.iemloyee.com\/?p=229284","title":{"rendered":"\u738b\u5b9a\u80dc&\u6881\u654f\u654f JACS\uff1a\u9996\u6b21\u62a5\u9053\uff01\u5355\u539f\u5b50\u50ac\u5316\u5242\u8fdb\u519b\u4eba\u5de5\u9176\u9886\u57df"},"content":{"rendered":"

\u3010\u80cc\u666f\u4ecb\u7ecd\u3011<\/strong><\/p>\n

\u7eb3\u7c73\u9176\u901a\u5e38\u88ab\u5b9a\u4e49\u4e3a\u5177\u6709\u7c7b\u9176\u7279\u6027\u7684\u7eb3\u7c73\u6750\u6599\uff0c\u5176\u80fd\u591f\u89e3\u51b3\u4f20\u7edf\u9176\u5b58\u5728\u7684\u5236\u5907\u6210\u672c\u9ad8\u3001\u6613\u53d8\u6027\u7b49\u7f3a\u70b9\u800c\u5f15\u8d77\u4e86\u4eba\u4eec\u7684\u6781\u5927\u5174\u8da3\uff0c\u4f46\u5176\u6d3b\u6027\u8fdc\u4f4e\u4e8e\u5929\u7136\u9176\u3002\u8fd1\u5e74\u6765\uff0c\u4ee5\u6709\u5355\u4e2a\u91d1\u5c5e\u539f\u5b50\u4e3a\u6d3b\u6027\u4e2d\u5fc3\u7684\u5355\u539f\u5b50\u50ac\u5316\u5242\uff08SACs\uff09\u5728\u5404\u79cd\u50ac\u5316\u53cd\u5e94\u4e2d\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u6027\u80fd\u3002\u901a\u8fc7\u6a21\u4eff\u5929\u7136\u9176\u9ad8\u5ea6\u8fdb\u5316\u7684\u50ac\u5316\u4e2d\u5fc3\uff0c\u5177\u6709\u660e\u786e\u7535\u5b50\u548c\u51e0\u4f55\u7ed3\u6784\u7684SACs\u6709\u671b\u6210\u4e3a\u4f20\u7edf\u9176\u7684\u66ff\u4ee3\u7269\u3002\u7136\u800c\uff0c\u76ee\u524d\u5236\u5907\u7684\u5355\u539f\u5b50\u7eb3\u7c73\u9176\u7531\u4e8e\u7f3a\u4e4f\u91d1\u5c5e\u6d3b\u6027\u4e2d\u5fc3\u548c\u8f7d\u4f53\u4e4b\u95f4\u7684\u7a33\u5b9a\u952e\u5408\u4f5c\u7528\uff0c\u518d\u52a0\u4e4b\u9ad8\u7684\u6bd4\u8868\u9762\u81ea\u7531\u80fd\uff0c\u4f7f\u5f97\u5355\u4e2a\u91d1\u5c5e\u539f\u5b50\u6709\u5f88\u5f3a\u7684\u8fc1\u79fb\u503e\u5411\u5e76\u805a\u96c6\u6210\u9897\u7c92\uff0c\u8fd9\u76f4\u63a5\u5bfc\u81f4\u5355\u539f\u5b50\u7eb3\u7c73\u9176\u7684\u50ac\u5316\u6027\u80fd\u4e0b\u964d\u751a\u81f3\u5931\u6d3b\u3002\u901a\u8fc7\u9ad8\u6e29\u70ed\u539f\u5b50\u5316\u5c06\u7eb3\u7c73\u9897\u7c92\u8f6c\u5316\u4e3a\u5355\u539f\u5b50\uff0c\u80fd\u591f\u5f62\u6210\u70ed\u7a33\u5b9a\u7684\u5355\u539f\u5b50\u6750\u6599\uff0c\u4f7f\u5f97\u5355\u539f\u5b50\u6d3b\u6027\u7269\u79cd\u56fa\u5b9a\u5728\u70ed\u529b\u5b66\u7a33\u5b9a\u4f4d\u7f6e\uff0c\u4ece\u800c\u63d0\u9ad8\u7a33\u5b9a\u6027\uff0c\u5e76\u9632\u6b62\u5355\u539f\u5b50\u6d3b\u6027\u7269\u79cd\u7684\u805a\u96c6\u548c\u6d78\u51fa\u3002\u6b64\u5916\uff0c\u4ece\u57fa\u4e8e\u7eb3\u7c73\u9897\u7c92\u7684\u7eb3\u7c73\u9176\u8f6c\u5316\u4e3aSAzymes\u53ef\u4ee5\u4f7f\u91d1\u5c5e\u7269\u79cd\u5b8c\u5168\u66b4\u9732\u5e76\u589e\u5f3a\u6d3b\u6027\u4f4d\u70b9\u7684\u53ef\u63a5\u8fd1\u6027\uff0c\u6709\u5229\u4e8e\u63d0\u9ad8\u7eb3\u7c73\u9176\u9176\u7684\u50ac\u5316\u6027\u80fd\u3002<\/p>\n

\"\"<\/p>\n

\u3010\u6210\u679c\u7b80\u4ecb\u3011<\/strong><\/p>\n

\u8fd1\u65e5\uff0c\u6e05\u534e\u5927\u5b66\u738b\u5b9a\u80dc\u526f\u6559\u6388\u548c\u5317\u4eac\u7406\u5de5\u5927\u5b66\u6881\u654f\u654f\u6559\u6388\uff08\u5171\u540c\u901a\u8baf\u4f5c\u8005\uff09\u7b49\u4eba<\/strong>\u62a5\u9053\u4e86\u4e00\u79cd\u65b0\u9896\u800c\u6709\u6548\u7684\u7b56\u7565\uff0c\u5373\u901a\u8fc7\u9006\u8f6c\u70ed\u70e7\u7ed3\u8fc7\u7a0b\u5c06\u94c2\u7eb3\u7c73\u9897\u7c92\uff08Pt NPs\uff09\u76f4\u63a5\u96fe\u5316\u6210\u5355\u539f\u5b50\uff0c\u4ece\u800c\u83b7\u5f97\u70ed\u7a33\u5b9a\u7684\u9ad8\u6027\u80fdPt\u5355\u539f\u5b50\u7eb3\u7c73\u9176\uff08PtTS<\/sub>-SAzyme\uff09\u3002\u5c06Pt NPs\u539f\u5b50\u5316\u4e3a\u5355\u539f\u5b50\u4f7f\u91d1\u5c5e\u50ac\u5316\u4f4d\u70b9\u5145\u5206\u66b4\u9732\uff0c\u5e76\u4e14\u4ea7\u751f\u53ef\u8c03\u63a7\u7684\u539f\u5b50\u7ed3\u6784\u548c\u7535\u5b50\u6027\u8d28\uff0c\u4ece\u800c\u663e\u8457\u63d0\u9ad8\u9176\u7684\u6027\u80fd\u3002\u5b9e\u9a8c\u6d4b\u8bd5\u53d1\u73b0\uff0c\u6240\u5236\u5907\u7684\u70ed\u7a33\u5b9aPt\u5355\u539f\u5b50\u7eb3\u7c73\u9176\uff08PtTS<\/sub>-SAzyme\uff09\u8868\u73b0\u51fa\u663e\u8457\u7684\u7c7b\u8fc7\u6c27\u5316\u7269\u9176\u50ac\u5316\u6d3b\u6027\u548c\u52a8\u529b\u5b66\uff0c\u8fdc\u8fdc\u8d85\u8fc7\u4e86Pt\u7eb3\u7c73\u9897\u7c92\u7eb3\u7c73\u9176\u3002\u901a\u8fc7\u5bc6\u5ea6\u6cdb\u51fd\u7406\u8bba\uff08DFT\uff09\u8ba1\u7b97\u8868\u660e\uff0c\u7ecf\u8fc7\u6539\u9020\u7684P\u548cS\u539f\u5b50\u4e0d\u4ec5\u4fc3\u8fdb\u4e86\u4ecePt NPs\u5230PtTS<\/sub>-SAzyme\u7684\u539f\u5b50\u5316\u8fc7\u7a0b\uff0c\u800c\u4e14\u7531\u4e8eP\u539f\u5b50\u7684\u7ed9\u7535\u5b50\u6027\u4ee5\u53caN\u548cS\u539f\u5b50\u7684\u5438\u7535\u5b50\u6027\uff0c\u4f7f\u5f97\u5355\u539f\u5b50Pt\u50ac\u5316\u4f4d\u70b9\u5177\u6709\u72ec\u7279\u7684\u7535\u5b50\u7ed3\u6784\uff0c\u6709\u52a9\u4e8e\u5927\u5e45\u63d0\u9ad8PtTS<\/sub>-SAzyme\u7684\u7c7b\u9176\u50ac\u5316\u6027\u80fd\u3002\u8be5\u5de5\u4f5c\u8868\u660e\uff0c\u5c06\u91d1\u5c5e\u7eb3\u7c73\u9897\u7c92\u70ed\u539f\u5b50\u5316\u4e3a\u5355\u539f\u5b50\u7eb3\u7c73\u9176\u662f\u6784\u5efa\u9ad8\u6027\u80fd\u7eb3\u7c73\u9176\u7684\u6709\u6548\u7b56\u7565\uff0c\u4e3a\u5408\u7406\u8bbe\u8ba1\u548c\u4f18\u5316\u6a21\u62df\u5929\u7136\u9176\u5f00\u8f9f\u4e86\u4e00\u6761\u65b0\u9014\u5f84\u3002\u7814\u7a76\u6210\u679c\u4ee5\u9898\u4e3a\u201cThermal Atomization of Platinum Nanoparticles into Single Atoms: An Effffective Strategy for Engineering High-Performance Nanozymes\u201d<\/strong>\u53d1\u5e03\u5728\u56fd\u9645\u8457\u540d\u671f\u520a J. Am. Chem. Soc.<\/strong>\u3002
\n \"\"
\n \u3010\u56fe\u6587\u89e3\u8bfb\u3011<\/strong><\/p>\n

\u56fe\u4e00\u3001PtTS<\/sub>-SAzyme \u7684\u5408\u6210\u548c\u7ed3\u6784\u8868\u5f81<\/strong>
\n \"\"\uff08a\uff09 PtTS<\/sub>-SAzyme\u7684\u5236\u5907\u8fc7\u7a0b\u793a\u610f\u56fe\uff1b<\/p>\n

\uff08b\uff09ZIF-8\/Pt NPs@PZS\u7684TEM\u56fe\u50cf\uff1b<\/p>\n

\uff08c-e\uff09 PtTS<\/sub>-SAzyme \u7684TEM \u3001\u653e\u5927TEM\u548c\u76f8\u5e94EDS\u6620\u5c04\u56fe\u50cf\uff1b<\/p>\n

\uff08f-g\uff09PtTS<\/sub>-SAzyme\u7684AC HAADF-STEM\u56fe\u50cf\u548c\u653e\u5927\u56fe\u50cf\u3002<\/p>\n

\u56fe\u4e8c\u3001PtTS<\/sub>-SAzyme\u7684\u539f\u5b50\u7ed3\u6784\u5206\u6790<\/strong>
\n \"\"\uff08a\uff09 PtTS<\/sub>-SAzyme\u3001Pt\u7b94\u548cPtO2<\/sub>\u7684\u5b9e\u9a8cPt-L<\/em>3<\/sub>-edge EXAFS\u4fe1\u53f7\u7684\u5085\u7acb\u53f6\u53d8\u6362\u5e45\u5ea6\uff1b<\/p>\n

\uff08b\uff09 PtTS<\/sub>-SAzyme\u3001Pt\u7b94\u548cPtO2<\/sub>\u7684WT\u66f2\u7ebf\uff1b<\/p>\n

\uff08c\uff09 PtTS<\/sub>-SAzyme\u5728R\u7a7a\u95f4\u4e2d\u7684EXAFS\u62df\u5408\u5206\u6790\uff1b<\/p>\n

\uff08d\uff09 PtTS<\/sub>-SAzyme\u5728k\u7a7a\u95f4\u4e2d\u7684EXAFS\u62df\u5408\u5206\u6790\uff1b<\/p>\n

\uff08e\uff09 PtTS<\/sub>-SAzyme\u3001Pt\u7b94\u548cPtO2<\/sub>\u7684 Pt L<\/em>3<\/sub>-edge XANES\u5149\u8c31\uff1b<\/p>\n

\uff08f\uff09 \u6bd4\u8f83 PtTS<\/sub>-SAzyme\u7684\u5b9e\u9a8cXANES\u5149\u8c31\u4e0e\u7406\u8bba\u6a21\u62dfXANES\u5149\u8c31\u3002<\/p>\n

\u56fe\u4e09\u3001PtTS<\/sub>-SAzyme \u7684\u7c7b\u8fc7\u6c27\u5316\u7269\u9176\u50ac\u5316\u6d3b\u6027<\/strong>
\n \"\"\uff08a\uff09 \u57fa\u4e8ePt\u7684\u7eb3\u7c73\u9176\u663e\u793a\u51fa\u56fa\u6709\u7684\u7c7b\u8fc7\u6c27\u5316\u7269\u9176\u6d3b\u6027\uff0c\u5e76\u50ac\u5316\u8fc7\u6c27\u5316\u7269\u9176\u5e95\u7269\u7684\u6c27\u5316\u4ee5\u4ea7\u751f\u6bd4\u8272\u53cd\u5e94\uff1b<\/p>\n

\uff08b\uff09\u7531PtTS<\/sub>-SAzyme\u3001Pt NPs\u7eb3\u7c73\u9176\u6216\u65e0Pt\u6d3b\u6027\u4f4d\u70b9\u7684\u65e0\u673a\u78b3\u9aa8\u67b6\uff08NPS-HC\uff09\u50ac\u5316\u7684TMB\u6bd4\u8272\u53cd\u5e94\u7684\u53cd\u5e94\u65f6\u95f4\u66f2\u7ebf\uff1b<\/p>\n

\uff08c\uff09 PtTS<\/sub>-SAzyme\u548cPt NPs\u7eb3\u7c73\u9176\u7684\u6bd4\u6d3b\u6027\uff08U\/nmol Pt\u539f\u5b50\uff09\uff1b<\/p>\n

\uff08d\uff09 PtTS<\/sub>-SAzyme\u548cPt NPs\u7eb3\u7c73\u9176\u7684\u50ac\u5316\u52a8\u529b\u5b66\u3002<\/p>\n

\u56fe\u56db\u3001PtN3<\/sub>PS-SAzyme\u50ac\u5316\u53cd\u5e94\u673a\u7406\u7684DFT\u7814\u7a76<\/strong>
\n \"\"\uff08a\uff09Pt10<\/sub>\u56e2\u7c07\u70ed\u96fe\u5316\u6210PtN3<\/sub>PS\u548cPtN4<\/sub>\u5355\u539f\u5b50\u7684\u8fc7\u7a0b\uff1b<\/p>\n

\uff08b\uff09 H2<\/sub>O2<\/sub>\u548cTMB\u5728PtN3<\/sub>PS-SAzyme\u3001PtN4<\/sub>-SAzyme\u548cPt NPs \u7eb3\u7c73\u9176\u4e0a\u7684\u70ed\u529b\u5b66\u5438\u9644\uff1b<\/p>\n

\uff08c\uff09\u4e09\u79cd\u6a21\u578b\u7684\u8fc7\u6c27\u5316\u7269\u9176\u6837\u6d3b\u6027\u3002<\/p>\n

\u56fe\u4e94\u3001PtTS<\/sub>-SAzyme \u7684\u6297\u83cc\u6548\u679c<\/strong>
\n \"\"\uff08a\uff09\u5728H2<\/sub>O2<\/sub> (1 mM) \u5b58\u5728\u4e0b\uff0c\u6bd4\u8f83PtTS<\/sub>-SAzyme (0.25 mg\/mL)\u548cPt NPs\u7eb3\u7c73\u9176(0.25 mg\/mL)\u5bf9\u5927\u80a0\u6746\u83cc\u3001\u94dc\u7eff\u5047\u5355\u80de\u83cc\u3001\u80a0\u708e\u6c99\u95e8\u6c0f\u83cc\u3001\u80ba\u708e\u514b\u96f7\u4f2f\u83cc\u548c\u91d1\u9ec4\u8272\u8461\u8404\u7403\u83cc\u7684\u6297\u83cc\u6548\u679c\uff1b<\/p>\n

\uff08b\uff09\u4e0d\u540c\u5904\u7406\u7ec4\u4e2d\uff0c\u5f62\u6210\u7684\u5927\u80a0\u6746\u83cc\u7684\u4ee3\u8868\u6027\u83cc\u843d\uff1b<\/p>\n

\uff08c\uff09\u5728H2<\/sub>O2<\/sub> (1 mM)\u5b58\u5728\u4e0b\uff0c\u5229\u7528PtTS<\/sub>-SAzyme(0.25 mg\/mL)\u6216Pt NPs \u7eb3\u7c73\u9176(0.25 mg\/mL)\u5904\u7406\u7684\u5927\u80a0\u6746\u83cc\u7684\u4ee3\u8868\u6027SEM\u56fe\u50cf\u3002<\/p>\n

\u3010\u5c0f\u7ed3\u3011<\/strong><\/p>\n

\u7efc\u4e0a\u6240\u8ff0\uff0c\u4f5c\u8005\u9996\u6b21\u62a5\u9053\u4e86\u901a\u8fc7\u9006\u8f6c\u70e7\u7ed3\u8fc7\u7a0b\u5c06Pt NPs\u76f4\u63a5\u8f6c\u5316\u4e3a Pt\u5355\u539f\u5b50\u4ee5\u83b7\u5f97\u9ad8\u6027\u80fdPt\u5355\u539f\u5b50\u7eb3\u7c73\u9176\uff08PtTS<\/sub>-SAzyme\uff09\u3002\u6240\u5236\u5907\u7684 PtTS<\/sub>-SAzyme\u8868\u73b0\u51fa\u4f18\u5f02\u7684\u7c7b\u8fc7\u6c27\u5316\u7269\u9176\u6d3b\u6027\uff0c\u8fdc\u9ad8\u4e8e\u57fa\u4e8e Pt NPs\u7684\u7eb3\u7c73\u9176\u3002\u901a\u8fc7AC HAADF-STEM\u548cXAFS\u8868\u5f81\u4ee5\u53caDFT\u8ba1\u7b97\u8868\u660e\uff0cPt\u3001N\u3001P\u548cS\u539f\u5b50\u5bf9PtTS<\/sub>-SAzyme\u72ec\u7279\u7684Pt1<\/sub>-N3<\/sub>PS\u6d3b\u6027\u90e8\u5206\u7684\u534f\u540c\u4f5c\u7528\u6709\u52a9\u4e8e\u663e\u8457\u63d0\u9ad8\u5176\u50ac\u5316\u6d3b\u6027\u548c\u52a8\u529b\u5b66\u3002\u8be5\u5de5\u4f5c\u8868\u660e\uff0c\u5c06\u57fa\u4e8e\u91d1\u5c5e NPs\u7684\u7eb3\u7c73\u9176\u70ed\u89e3\u6210SAzymes\u662f\u63d0\u9ad8\u5176\u9176\u4fc3\u6027\u80fd\u7684\u6709\u6548\u7b56\u7565\uff0c\u4ece\u800c\u4e3a\u9ad8\u6027\u80fd\u4eba\u5de5\u9176\u7684\u8bbe\u8ba1\u548c\u5de5\u7a0b\u5316\u63d0\u4f9b\u4e86\u4e00\u79cd\u65b0\u65b9\u6cd5\uff0c\u4ee5\u4fc3\u8fdb\u4eba\u5de5\u9176\u5bf9\u5929\u7136\u9176\u7684\u66ff\u4ee3\u3002<\/p>\n

\u6587\u732e\u94fe\u63a5\uff1aThermal Atomization of Platinum Nanoparticles into Single Atoms: An Effective Strategy for Engineering High-Performance Nanozymes<\/a><\/strong>. J. Am. Chem. Soc.<\/em>, 2021<\/strong>, DOI: 10.1021\/jacs.1c08581.<\/p>\n

\u672c\u6587\u7531CQR\u7f16\u8bd1\u3002<\/p>\n

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