报告人简介：

TimothyM. Swager，东华大学顾问教授，美国国家科学院院士、美国国家艺术与科学院院士，麻省理工学院麦克阿瑟讲席教授，德什潘德(Deshpande)科技创新中心主任，先后任MIT化学系主任，JACS、Chemistry of Materials、Accounts ofChemical Research和Macromolecules等期刊副主编、编委。于1998年获得加州理工学院博士学位，师从2005年诺贝尔化学奖获得者RobertH.Grubbs。

TimothyM.Swager教授是国际著名的胶体化学和高分子化学家，也是化学传感器领域的先驱人物之一。他根据分子电子学原理，设计了一系列超灵敏的化学传感器，将痕量化学信号转化为灵敏的电子信号。此外，Swager教授在液晶、分子识别、纳米材料、光电化学、超分子化学等多领域均卓有建树。曾荣获鲍林奖（2016）、洪堡高级研究奖（2014）、美国化学会创造发明奖（2013）等多项荣誉。Swager教授拥有70多项专利，发表400余篇学术论文，近200篇发表在Science、Nature及其子刊、JACS、AgnewChem和AdvMater等同级别期刊。

报告摘要：

This lecture will detail the creation of ultrasensitive sensors based onelectronically active conjugated polymers (CPs) and carbon nanotubes(CNTs). A central concept that a singlenano- or molecular-wire spanning between two electrodes would create anexceptional sensor if binding of a molecule of interest to it would block allelectronic transport. The use ofmolecular electronic circuits to give signal gain is not limited to electricaltransport and CP-based fluorescent sensors can provide ultratrace detection ofchemical vapors via amplification resulting from exciton migration. Nanowirenetworks of CNTs provide for a practical approximation to the single nanowirescheme. These methods include abrasion deposition and selectivity is generatedby covalent and/or non-covalent binding selectors/receptors to the carbon nanotubes.Sensors fora variety of materials and cross-reactive sensor arrays will be described. The use of carbon nanotube based gas sensorsfor the detection of ethylene and other gases relevant to agricultural and foodproduction/storage/transportation are being specifically targeted and can beused to create systems that increase production, manage inventories, andminimize losses.