A modified polyamide membrane and method for making and using the same. In an embodiment of the invention, the handle further includes a first bushing protruding from one of the opposing spring tabs and a second bushing protruding from a second one of the opposing spring tabs. The second antiferromagnetic layer is milled to form an indent. An IDT is disposed between the first medium and the third medium. The dispersions can be used to treat contaminated soil or water.