EAGER: NANOTUBE SUPPORTED 1D PROTON WIRES AND DEVICES

渴望：纳米管支持的一维质子线和器件

• 批准号: 1648815
• 负责人: Marco Rolandi
• 金额: $ 15万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1648815&HistoricalAwards=false
• 关键词: EAGER; NANOTUBE; SUPPORTED; 1D; PROTON

Nontechnical description: Many natural and biological processes, such as neural activity and energy transfer inside cells of living organism rely on the transport of hydrogen ions for proper functioning. This project develops a tool that enables the study of the fundamental aspects of hydrogen ion transport through very small channels that mimic nanoscale biological systems. Potential applications include new materials for efficient fuel cells, as well as devices that are capable of interfacing living biological systems with nanoscale electronic devices, for targeted diagnostics and therapies. The educational component of this project seeks to expand visual communication skills of students. In modern scientific research, graphics are regularly used to convey research findings among scientists and the general public. Teaching modules addressing graphical display of information are used to better prepare undergraduate and graduate students for future careers in science and engineering. Additionally, science students collaborate with art students to develop effective graphics for dissemination of scientific data. Technical description: Proton transport in one dimension is very important in biological systems and for developing materials for separation science and energy applications. To date, it has been difficult to study proton transport in a perfect one dimensional system. This project aims to demonstrate proof-of-concept devices for studying one dimensional proton transport in hydrogen bonded water proton wires, by exploring water filled carbon nanotubes as one dimensional proton conductors. Water organized inside carbon nanotubes has remarkably interesting properties when it comes to proton conduction, with reported high conductivity and frictionless motion at short length scales. This proof-of-concept serves as a foundation for measuring the conductivity, charge carrier density, contact barrier and water organization, providing for the first time values for mobility of hydrogen and hydronium ions from transistor measurements. The enabler of these studies is a proton-field effect transistor incorporating a polymer proton filter for separating electronic contributions from the carbon nanotubes.

非技术描述：许多自然和生物过程，如神经活动和活体细胞内的能量转移，都依赖于氢离子的传输才能正常发挥作用。该项目开发了一种工具，能够研究氢离子通过模拟纳米级生物系统的非常小的通道进行传输的基本方面。潜在的应用包括用于高效燃料电池的新材料，以及能够将活的生物系统与纳米级电子设备接口的设备，用于有针对性的诊断和治疗。该项目的教育部分旨在扩大学生的视觉交流技能。在现代科学研究中，图形经常被用来在科学家和普通公众之间传达研究成果。解决信息的图形显示的教学模块被用来更好地为本科生和研究生为未来的科学和工程职业做准备。此外，理科学生与文科学生合作开发有效的图表来传播科学数据。技术描述：一维质子传输在生物系统中非常重要，对于开发用于分离科学和能源应用的材料也是非常重要的。到目前为止，在一个完美的一维系统中研究质子输运一直是很困难的。本项目旨在通过探索充满水的碳纳米管作为一维质子导体来演示用于研究氢键水质子导线中一维质子传输的概念验证装置。碳纳米管中的水在质子传导方面具有非常有趣的性质，据报道，它具有高导电性和在短距离尺度上的无摩擦运动。这一概念验证是测量电导率、载流子密度、接触势垒和水组织的基础，首次从晶体管测量中提供了氢和氢离子迁移率的值。这些研究的助推器是一种质子场效应晶体管，它包含一个聚合物质子过滤器，用于将电子贡献从碳纳米管中分离出来。

项目成果

Electronic control of H+ current in a bioprotonic device with carbon nanotube porins

碳纳米管孔蛋白生物质子装置中 H 电流的电子控制

• DOI: 10.1371/journal.pone.0212197
• 发表时间: 2019
• 期刊: PLOS ONE
• 影响因子: 3.7
• 作者: Hemmatian, Zahra;Tunuguntla, Ramya H.;Noy, Aleksandr;Rolandi, Marco;Wanunu, Meni
• 通讯作者: Wanunu, Meni

Proton conductivity of glycosaminoglycans

• DOI: 10.1371/journal.pone.0202713
• 发表时间: 2019-03-08
• 期刊: PLOS ONE
• 影响因子: 3.7
• 作者: Selberg, John;Jia, Manping;Rolandi, Marco
• 通讯作者: Rolandi, Marco