MECHANISMS OF HEAVY METAL ADSORPTION BY BIOMATERIALS USING XAS

本子项目是利用由NIH/NCRR资助的中心赠款提供的资源的众多研究子项目之一。子项目和研究者（PI）可能已经从另一个NIH来源获得了主要资金，因此可以在其他CRISP条目中表示。列出的机构是中心的，不一定是研究者的机构。生物材料可能是去除污染水体中有毒重金属离子的一种经济有效的替代方法。为了更好地了解有毒金属离子结合的机制，需要进行XAS研究。天然生物材料很难在分子水平上进行研究。然而，同步加速器XAS将使我们能够表征结合的金属离子并确定它们在生物质上的配位环境。这些信息对于确定生物材料如何选择性地结合具有相同电荷的某些金属离子具有特别的意义。生物材料研究的进展可能使新的和创新的生物吸附剂技术得以发展，从而可能减少受污染的公共供水对健康的潜在不利影响。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Biological materials may be a cost effective alternative to remove toxic heavy metal ions from contaminated waters. In order to better understand the mechanisms involved in toxic metal ion binding, XAS studies need to be performed. Natural biomaterials are difficult to study on a molecular level. However, synchrotron XAS will enable us to characterize the bound metal ions and determine their coordination environment on the biomass. This information will be of particular interest in determining how biomaterials can selectively bind certain metal ions over others with the same charge. Advancement of biomaterial research may allow for new and innovative bio-adsorbent technologies to be developed which may reduce the potential adverse health impact of contaminated public water supplies.