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Nanotechnology. 2008 Feb 6;19(5):055303. doi: 10.1088/0957-4484/19/05/055303. Epub 2008 Jan 14.

Nonuniform shrinkage and stretching of polymerized nanostructures fabricated by two-photon photopolymerization.

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  • 1State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871, People's Republic of China.


We propose a method to measure the nonuniform shrinkage and stretching of polymerized nanostructures by marking them with periodical points. The method was tested, and the results showed that suspended lines themselves shrank after fabrication, but they were also stretched due to the shrinkage of their support anchors, a phenomenon that has not been investigated much before. The extension strain was measured from the change in the separation points, which reached 75% for a 2 µm-long line with a width of 40 nm.

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