Reversibly Compressible and Stretchable “Springlike” Polymeric Nanojunctions Between Metal Nanoparticles


  • V.B. thanks Kansas State University for financial support (Start-up Grant)


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Spring-loaded junctions: An electromechanical device is fabricated by incorporating crosslinked polymer molecules between gold nanoparticles in a two-dimensional array. After compression or stretching induced by a high electric field (see picture) or a centrifugal field, respectively, the junctions exert force on the nanoparticles to move them back to their original position, similar to a windup toy.