CREST-Postdoctoral Research Fellowship:Design of Ag Nanoparticles-Coated ZnO Nanoshells Substrate for the Detection of Contaminants in Water Using Surface-Enhanced Raman Scattering

CREST-博士后研究奖学金：设计银纳米粒子涂覆的氧化锌纳米壳基底，用于利用表面增强拉曼散射检测水中的污染物

基本信息

批准号：
2112537
负责人：
Adrian Camacho-Berrios
金额：
$ 15.91万
依托单位：
Camacho-Berrios, Adrian
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-09-01 至 2023-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2112537&HistoricalAwards=false
关键词：
CREST Postdoctoral Research Fellowship Design

项目摘要

The Centers of Research Excellence in Science and Technology-Postdoctoral Research Fellowship (CREST-PRF) track within the CREST program supports beginning CREST Center investigators with significant potential and provides them with training and research experiences that will broaden perspectives, facilitate interdisciplinary interactions and establish them in positions of leadership within the scientific community. This CREST-PRF project is aligned with the research focus of the CREST Center for Nanotechnology Center for Biomedical, Environmental and Sustainability Applications – Phase II at the University of Puerto Rico Mayaguez. The goal of this research is to develop an inexpensive material which will be useful in detecting water contaminants. The new material will be composed of metal nanoparticles that will enhance signals from these contaminants. The proposed work has the potential to position a new researcher to start an independent research career and become a competitive faculty member. The work also has the potential to create outreach activities for students in Western Puerto Rico public schools. The aim of the proposal is to develop a surface-enhanced Raman scattering (SERS) substrate made of Ag nanoparticle coated ZnO nanoshells through a less expensive methodology capable of being scaled upwards. The SERS substrate will serve to detect emerging contaminants in water, an environmental problem of increasing concern in the U.S. The proposed SERS substrate will be produced in a three-step process that includes the electrospinning of cellulose fibers and the sputtering deposition of ZnO nanoshells and of Ag nanoparticles. These are well known, less expensive techniques that can be used at large scales. The SERS performance will be evaluated as a function of the Ag nanoparticles' size as a function of sputtering time and temperature during post-deposition heat treatment. The detection of emerging pollutants in water at trace levels will assist scientists in implementing quick remediation actions before dangerous consequences to human health and the environment occur. Thus, the proposed nanostructure as SERS substrate will expand the field of detecting trace levels of emerging pollutants in water resources. Through the host scientist's mentoring, the proposer will have an opportunity to be trained as a competitive faculty member and engage in an independent research career. The proposed outreach activities for students in public schools in Western Puerto Rico will focus on the significance of nanotechnology and how it addresses environmental issues such as water contamination.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.

CREST 计划中的科学技术卓越研究中心 - 博士后研究奖学金 (CREST-PRF) 轨道为具有巨大潜力的 CREST 中心研究人员提供支持，并为他们提供培训和研究经验，从而拓宽视野、促进跨学科互动并建立跨学科互动该 CREST-PRF 项目与波多黎各马亚圭斯大学生物医学、环境和可持续发展应用纳米技术中心第二阶段的研究重点一致。这项研究的目的是开发一种可用于检测水污染物的廉价材料，该新材料将由金属纳米颗粒组成，可以增强这些污染物的信号。这项工作还有可能为波多黎各西部公立学校的学生开展外展活动。该提案的目的是开发一种由银纳米粒子制成的表面增强拉曼散射（SERS）基底。通过一种能够扩大规模的较便宜的方法涂覆氧化锌纳米壳，该SERS基底将用于检测水中新出现的污染物，这是美国日益关注的一个环境问题。拟议的SERS基底将通过三步工艺生产，其中包括：纤维素纤维的静电纺丝以及氧化锌纳米壳和银纳米粒子的溅射沉积这些都是众所周知的、可以大规模使用的较便宜的技术。可以根据沉积后热处理期间的溅射时间和温度对银纳米粒子的尺寸进行评估。检测水中痕量污染物将有助于科学家在对人类健康造成危险后果之前采取快速补救措施。因此，所提议的纳米结构作为 SERS 基底将扩大检测水资源中新兴污染物的领域，通过主办科学家的指导，提议者将有机会接受培训，成为一名有竞争力的教职人员。拟议的针对波多黎各西部公立学校学生的外展活动将反思纳米技术的重要性以及它如何解决水污染等环境问题。该奖项是 NSF 的法定使命，并被认为值得支持。通过使用基金会的智力优点和更广泛的影响审查标准进行评估。