| abstract |
A magnetic device may have a matrix and a plurality of magnets, and the magnetic device may have a force sufficient to maintain a contracted position upon being contracted from a stretched state. The matrix may have at least two hinges that may be or include, but are not limited to a living hinge, a mechanical hinge, or combinations thereof. The plurality of magnets may be disposed upon, within, or around the matrix, and at least one dimension of each magnet is at least 500 nm. In a non-limiting embodiment, at least one of the magnets may be an energizable magnet for increasing or decreasing the rebound force of the magnetic device when the magnetic device is energized. |