POWRE: Development of Fiber Optic Sensors For Biogeochemical Studies

POWRE：用于生物地球化学研究的光纤传感器的开发

• 批准号: 9870371
• 负责人: Josephine Aller
• 金额: $ 7.5万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9870371&HistoricalAwards=false
• 关键词: POWRE; Development; Fiber; Optic; Sensors

9870371Aller Diagenetic reactions in surface sediments are sensitive indicators of changes in reactive particulate matter and the resulting balances between microbial remineralization pathway. The principal objective of this POWRE program proposal is to learn the necessary skills to take advantage of recent advances in the development of chemical fiberoptic sensors for biomedical, industrial and environmental remediation applications to adapt and optimize the technology for making analyte-specific sensors for biogeochemical processes studies. My ultimate goal is to be able to utilize the capabilities of fiber-optic chemical analyte sensors for monitoring in situ, pore-water solute concentrations and fluxes resulting from sedimentary microbial activities, and to biogeochemically detail microenvironments associated with redox boundaries (i.e. around biogenic structures). The application of sensor technology for such studies has tremendous potential for increasing sampling resolution, for increasing the number of simultaneous measurements that can be made, and for reducing sample processing time from hours or days, to minutes. I initially intend to utilize the sensors developed in a series of laboratory experiments which will monitor bacterial activities and remineralization processes within sediments by directly measuring changes in solute fluxes and pore-water concentrations of O2, ÕCO2, NH4+. Fortunately, there are several renowned experts in engineering, marine biogeochemistry, and high-pressure geochemistry at SUNY Stony Brook with whom I can work and collaborate. This is an ideal situation that will allow me to meet my teaching and family obligations while enabling me to develop new skills and methodologies. I expect that the new skills and the collaborative relationships forged during this project will have a critical impact on my academic career by allowing me to expand my expertise technologically, increase my competitiveness for funding, and enable me to make a contribution to biogeochemical process studies..

9870371表面沉积物中的成岩成分反应是反应性颗粒物质变化以及微生物提醒途径之间产生平衡的敏感指标。该POWRE计划建议的主要目标是学习必要的技能，以利用用于生物医学，工业和环境补救应用化学纤维传感器开发的最新进展，以适应和优化为生物地球化学过程研究的分析物特异性传感器的技术。我的最终目标是能够利用光纤化学分析物传感器的能力来监测原位，孔隙水溶质浓度和由沉积微生物活性产生的通量，以及与生物地球化学上的微观环境相关的微微环境（即围绕生物基因结构）。传感器技术在此类研究中的应用具有增加采样分辨率的巨大潜力，可以增加可以进行的简单测量数量，以及将样品处理时间从小时或几天减少到几分钟。我最初打算利用一系列实验室实验中开发的传感器，这些传感器将通过直接测量固体通量和孔隙水浓度的O2，õCO2，NH4+的变化来监测沉积物中的细菌活动和提醒过程。幸运的是，在纽约州立大学布鲁克（Suny Stony Brook）的工程，海洋生物地球化学和高压地球化学方面有几位著名专家，我可以与他们合作并合作。这是一个理想的情况，可以让我履行自己的教学和家庭义务，同时使我能够发展新的技能和方法。我希望在这个项目中遗忘的新技能和协作关系将对我的学术生涯产生关键的影响，因为我能够从技术上扩展我的专业知识，提高我的资金竞争力，并使我能够为生物地球化学流程研究做出贡献。