EAGER: A Novel Carbon Nanotube Based Phosphate Sensor Using Potentiometric Principles for Oceanographic Use

EAGER：一种基于碳纳米管的新型磷酸盐传感器，采用电位原理用于海洋学用途

• 批准号: 2212606
• 负责人: Anuscheh Nawaz
• 金额: $ 26.25万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-06-01 至 2024-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2212606&HistoricalAwards=false
• 关键词: EAGER; Novel; Carbon; Nanotube; Based

The PI's request EAGER funding to build a phosphate sensor for aquatic systems. Phosphate and Nitrate are essential macronutrients limiting primary productivity in most aquatic ecosystems. The availability of phosphate, a main component of the marine biological carbon pump strongly influences the ability to capture and store the greenhouse gas carbon dioxide. Development of a phosphate sensor with high precision, long lifetime, low detection limit, and good reproducibility would improve estuarine and coastal water quality monitoring and further understanding of marine nutrient cycling. If successful, these phosphate sensors could have far reaching impact for a range of other applications. The PI's envision an array of low cost, low power sensors fitting onto the sensor surface the size of a quarter.The PI's propose to build and characterize a carbon nanotube based potentiometric phosphate sensor. This prototype sensor will allow the PI's to test the sensors response, its sensitivity and lower selection limit and long-term performance in the lab and field testing at the dock. With other funding the PI’s have been developing a potentiometric Chloride sensor. They plan to follow a similar strategy for developing the proposed potentiometric phosphate sensor. The goal is to be able to produce a small, low cost, accurate, in situ phosphate sensor to provide the needed data on spatial and temporal scales necessary to answer questions not possible with current technologies.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

PI 请求急切资助为水生强系统建立磷酸盐传感器。 磷酸盐和硝酸盐是限制大多数水生生态系统初级生产力的重要营养素。磷酸盐是海洋生物碳泵的主要组成部分，影响捕获和储存的能力。开发高精度、长寿命、低检测限和良好重复性的磷酸盐传感器将改善河口和沿海水质监测并进一步了解海洋营养物。如果成功，这些磷酸盐传感器可能会对一系列其他应用产生深远的影响，PI 设想将一系列低成本、低功耗传感器安装在四分之一大小的传感器表面上。PI 提议构建并表征。基于碳纳米管的电位磷酸盐传感器。该原型传感器将允许 PI 测试传感器的响应、其灵敏度和选择下限以及在实验室和码头现场测试中的长期性能。他们计划遵循类似的策略来开发所提出的电位磷酸盐传感器，目标是能够提供小型、低成本、准确的原位磷酸盐传感器，以提供所需的空间和时间数据。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。