Synthesis and Characterization of Novel Hydrogel Formulations for the Single Chirality Purification of Single-Walled Carbon Nanotubes

用于单壁碳纳米管单手性纯化的新型水凝胶制剂的合成和表征

基本信息

批准号：
2107748
负责人：
Kevin Tvrdy
金额：
$ 25万
依托单位：
University of Colorado at Colorado Springs
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：
2021-07-01 至 2025-06-30
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2107748&HistoricalAwards=false
关键词：
Synthesis Characterization Novel Hydrogel Formulations

项目摘要

With the support of the Macromolecular, Supramolecular, and Nanochemistry Program and the Chemical Measurement and Imaging Program in the Division of Chemistry and the Interfacial Engineering Program in the Division of Chemical, Biochemical, Engineering and Transport Systems (CBET), Kevin Tvrdy of the University of Colorado at Colorado Springs is developing novel hydrogel separation media for optimizing the separation and purification of single-walled carbon nanotubes. The project explores the rational design of both relatively expensive hydrogel formulations, based on biologically derived polysaccharides, and relatively inexpensive hydrogel formulations, based on small molecule building blocks. The metric of success of this project is the degree of purity of the single chirality SWCNs that are isolated using the proposed hydrogel formulations. The availability of pure single component carbon nanotubes of uniform properties has the potential to significantly impact a wide range of applications, in nanoelectronics, biological imaging, photovoltaics and energy harvesting and storage. Master's level and undergraduate students will be involved in conducting the proposed research. Research results will be incorporated in a nanoscience course and shared with the general public in a monthly "Science on Tap" lecture series designed to promote science literacy and appreciation of science in the Colorado Springs community.In this project, Kevin Tvrdy and his students seek to develop hydrogel media specifically tailored for the chiral separation of single-walled carbon nanotubes (SWCNTs). Top-down modification of commercially-available Sephacryl hydrogels will be pursued, as well as bottom-up synthesis. Biologically derived polysaccharides will be crosslinked using radical polymerization to form novel hydrogel formulations, and a select group of water-soluble monomers and crosslinkers will be used to form alternative low-cost formulations. The hydrogel products will be characterized with spectroscopic and microscopic techniques, and their potential for SWCNTs separations based on chirality will be quantified. The metric of success of this project is the degree of purity of the single chirality SWCNTs that are isolated using the proposed hydrogel formulations. By focusing on the rational design of novel hydrogel media, this work seeks both fundamental knowledge of the chirality dependent physiochemical driving forces at the hydrogel/nanotube interface, and application of that knowledge to realize gel formulations tailored for isolation of specific nanotube chiralities. Achievement of the central goal of this project has the potential to impact how nanotubes are integrated into both fundamental and applied research.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.

在化学，生物化学，工程和运输系统（CBET）化学，生化，工程和运输系统（CBET）的化学，生化，工程和运输系统（CBET）的分离水集团分离的化学，生化，工程和运输系统（CBET）分离的化学，生化，工程和运输系统（CBET）分离的化学和界面工程计划中的大分子，超分子和纳米化学计划以及化学测量和成像计划的支持下纳米管。该项目探讨了基于生物学衍生的多糖和相对廉价的水凝胶配方的相对昂贵水凝胶配方的合理设计，基于小分子的构建块。该项目成功的度量是使用拟议的水凝胶配方分离的单手性SWCN的纯度。统一特性的纯单分量碳纳米管的可用性有可能在纳米电子，生物成像，光伏以及能量收集和存储中显着影响广泛的应用。硕士的水平和本科生将参与进行拟议的研究。研究结果将纳入纳米科学课程，并在每月的“ TAP ON TAP”讲座系列中与公众共享，旨在促进科学素养和对科学的欣赏。科罗拉多斯普林斯社区中的科学素养和欣赏。在这个项目中，Kevin Tvrdy和他的学生旨在开发专门针对单核碳Nanotubes（Swicntss）的呼射分离而定制的水凝胶媒体。将追求商业上可用的Sephacryl水凝胶的自上而下的修饰，以及自下而上的合成。生物学衍生的多糖将使用自由基聚合形成新型水凝胶制剂，并将使用一组水溶性的单体和交联成组形成替代性低成本配方。水凝胶产物将以光谱和显微镜技术的特征进行表征，其基于手性的SWCNT分离的潜力将被量化。该项目成功的度量是使用拟议的水凝胶制剂分离的单手性SWCNT的纯度。通过专注于新型水凝胶介质的合理设计，这项工作既寻求有关手性依赖性的生理化学驱动力的基本知识，又寻求了水凝胶/纳米管界面的，以及该知识的应用来实现用于量身定制的凝胶配方，适合隔离特定的纳米管手势。实现该项目的中心目标有可能影响纳米管如何整合到基本和应用研究中。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛影响的评估评估标准来通过评估来获得支持的。