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表层沉积物的成岩反应是反应性颗粒物变化及其微生物再矿化途径平衡的敏感指标。该power计划提案的主要目标是学习必要的技能，以利用生物医学，工业和环境修复应用中化学光纤传感器的最新进展，以适应和优化用于生物地球化学过程研究的分析物特定传感器的技术。我的最终目标是能够利用光纤化学分析物传感器的功能，就地监测沉积微生物活动产生的孔隙水溶质浓度和通量，以及与氧化还原边界（即生物成因结构周围）相关的生物地球化学细节微环境。传感器技术在此类研究中的应用具有巨大的潜力，可以提高采样分辨率，增加可以同时进行的测量次数，并将样品处理时间从数小时或数天减少到几分钟。我最初打算利用在一系列实验室实验中开发的传感器，通过直接测量溶质通量和O2， ÕCO2， NH4+的孔隙水浓度的变化来监测沉积物中的细菌活动和再矿化过程。幸运的是，纽约州立大学石溪分校有几位著名的工程、海洋生物地球化学和高压地球化学专家，我可以和他们一起工作和合作。这是一个理想的情况，将允许我履行我的教学和家庭义务，同时使我能够发展新的技能和方法。我希望在这个项目中建立的新技能和合作关系将对我的学术生涯产生关键的影响，使我能够在技术上扩展我的专业知识，增加我在资金上的竞争力，并使我能够为生物地球化学过程研究做出贡献。