Acquisition of a Field Emission Scanning Electron Microscope for Research and Teaching in the Fields of Chemistry, Geology, Biology, Physics, and Forensic Science

购买场发射扫描电子显微镜用于化学、地质学、生物学、物理学和法医学领域的研究和教学

• 批准号: 1828358
• 负责人: Rosalynn Quinones
• 金额: $ 39.9万
• 依托单位: Marshall University Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-01 至 2021-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1828358&HistoricalAwards=false
• 关键词: Acquisition; Field; Emission; Scanning; Electron

This award is supported by the Major Research Instrumentation (MRI) and the Chemistry Research Instrumentation (CRIF) Programs as well as the Established Program to Stimulate Competitive Research (EPSCoR). Professor Rosalynn Quinones-Fernandez from Marshall University and colleagues Michael Norton, Aley El-Shazly, Iyad Hijazi and Sean McBride have acquired a field emission scanning electron microscope (FESEM). A scanning electron microscope is an essential tool for the study of materials. It focuses a beam of electrons at the sample. The electrons interact and are scattered from the material to produce an image of the surface and its structure. A field-emission SEM has a electron gun designed to provide very high resolution images. This instrument upgrade improves image resolution and allow elemental analysis presently unavailable to researchers at Marshall. The science enabled by the acquisition impacts areas of interest to the community (for example, Appalachian geology, insects endemic to West Virginia and forensic/environmental analyses). Undergraduate research training and course instruction (100 students/year) involves largely regional students from Appalachia. The FESEM enhances at least five different annual outreach activities some of which target specifically minority and underrepresented students. A researcher from West Virginia State University, a Historically Black College and University, and another researcher at the University of Charleston also benefit. The proposal is aimed at enhancing research and education at all levels. Research projects are ongoing to control surface properties of metal oxide nanoparticles and to investigate DNA based platforms for single molecule sensing nanostructures. Other projects focus on atomistic modeling techniques to probe for nanomaterial with unique properties, and experiments on self-assembled nanoparticle membranes. Investigations are underway to model and simulate rigid and flexible body dynamics for soft robotic applications. Other investigations use geological sample imaging and analysis to understand the tectonic setting of metamorphic and igneous rocks of the southern Appalachians. Arachnid sensory morphology and characterization of sensory sensillae in the Tsetse fly are being studied.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.

该奖项由主要研究仪器（MRI）和化学研究仪器（CRIF）计划以及刺激竞争性研究的既定计划（EPSCoR）支持。 来自马歇尔大学的Rosalynn Quinones-Fernandez教授及其同事Michael Norton、Aley El-Shazly、Iyad Hijazi和Sean McBride获得了场发射扫描电子显微镜（FESEM）。 扫描电子显微镜是研究材料的重要工具。 它将一束电子聚焦在样品上。 电子相互作用并从材料中散射，以产生表面及其结构的图像。 场发射扫描电镜有一个电子枪设计提供非常高的分辨率图像。 这一仪器升级提高了图像分辨率，并允许元素分析目前无法在马歇尔的研究人员。 收购所带来的科学影响了社区感兴趣的领域（例如，阿巴拉契亚地质学，西弗吉尼亚州特有的昆虫和法医/环境分析）。 本科研究培训和课程教学（100名学生/年）主要涉及来自阿巴拉契亚的区域学生。FESEM加强了至少五种不同的年度外联活动，其中一些活动专门针对少数民族和代表性不足的学生。 一位来自西弗吉尼亚州立大学的研究人员，一位历史上的黑人学院和大学，以及另一位来自查尔斯顿大学的研究人员也从中受益。该提案旨在加强各级的研究和教育。 研究项目正在进行中，以控制金属氧化物纳米颗粒的表面性质，并研究基于DNA的单分子传感纳米结构平台。 其他项目集中在原子建模技术，以探测具有独特性质的纳米材料，以及自组装纳米粒子膜的实验。研究正在进行中的建模和模拟刚性和柔性的身体动力学软机器人的应用。其他调查使用地质样品成像和分析来了解阿巴拉契亚山脉南部变质岩和火成岩的构造背景。该奖项反映了NSF的法定使命，并被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。

项目成果

Chemical composition effect on latent print development using black fingerprint powders

• DOI: 10.1016/j.forc.2021.100366
• 发表时间: 2021-12
• 期刊: Forensic Chemistry
• 影响因子: 2.7
• 作者: Sara Moreno;Glenna J. Brown;M. Klein;Qiang Wang;John T. Markiewicz;Elvin A. Alemán;Catherine G. Rushton;Rosalynn Quiñones

Examining Particle Size of Inorganic Active Ingredients within Sunscreens Using Dynamic Light Scattering

使用动态光散射检查防晒霜中无机活性成分的粒径

• DOI: 10.1021/acs.jchemed.0c00939
• 发表时间: 2021
• 期刊: Journal of Chemical Education
• 影响因子: 3
• 作者: Quiñones, Rosalynn;Moreno, Sara;Shoup, Deben;Klein, Mieke;Westfall, Tamara D.;Damai, Aakriti
• 通讯作者: Damai, Aakriti