Colorimetric Logic Gates through Molecular Recognition and Plasmonic Nanoparticles

• 作 者: YunleiXianyuand;XingyuJiang;
• 机 构: National Center for NanoScience and Technology,Beijing 100190,P.R.China
• 出 处: 第九届全国微全分析系统学术会议、第四届全国微纳尺度生物分离分析学术会议、2014国际微流控芯片与微纳尺度生物分离分析学术
• 发表日期: 2004年期

　　We report that versatile colorimetric logic gates can be designed based on the molecular interactions between metal ions and amino-acids using gold nanoparticles as the indicator.A logic gate system capable of AND,OR,INHIBIT and AND + OR logic operations is constructed.The principle is by modulating the distance between arginine(lysine)-modified gold nanoparticles via metal ions.A lab-on-chip format for assembly of versatile logic gates has been demonstrated for proof of concept.These logic gates allow a straightforward readout by the naked eye.