
Identifying rare earth metals is important for applications such as environmental monitoring, nuclear medicine, nuclear forensics, and efficient rare earth element processing, where accurate detection ensures safety, traceability, and optimal resource use.
Separating and identifying metals, particularly rare earth elements, remains a complex and resource-intensive challenge. Many existing separation materials lack selectivity and efficiency, making it difficult to distinguish between chemically similar ions. This leads to longer processing times, increased operational costs, and less reliable analytical results.
UWM researchers have developed a microcapsule-based material system that helps laboratories and processing facilities that want faster, more accurate metal separations by enhancing mass transport and improving interactions between target metals and selective chemistries and increasing separation efficiency and reliability—unlike conventional materials that limit transport and produce slower, less distinct results.
This technology utilizes engineered polymer microcapsules with a structured architecture that enhances the transport of metal ions. Each capsule contains a thin, active layer of selective chemistry, allowing metals to interact more efficiently during separation compared to traditional bulk materials. By improving diffusion and maximizing contact between target ions and functional materials, this design overcomes key limitations of conventional systems, namely slow transport and poor selectivity, resulting in faster, more efficient, and more precise separations.
The technology has been experimentally demonstrated, including synthesis and performance testing of the microcapsule-based materials.
We seek partners for applications with companies developing or supplying extraction chromatography materials, as well as analytical laboratories and research institutions interested in advanced metal ion separations.
Patent pending. Protected and managed by the UWM Research Foundation.
Mark L. Dietz, UWM Professor, Chemistry & Biochemistry
Shawn C. Salske, UWM PhD Student, Chemistry & Biochemistry