Polymer Nanosensor Device
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United States of America Patent
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Issued Date -
Jun 7, 2007
app pub date -
Nov 19, 2006
filing date -
Nov 21, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A plurality of particles are densely packed as an array on a flexible substrate. As at least a portion of the substrate responds mechanically to an external stimulus, the coated substrate is useful as a sensor device to the extent that the mechanical response produces a separation between particles resulting in a measurable change in the physical properties of the array. Preferably the particles are conductive, spherical and of nano-scale for greater sensitivity. When the array comprises closely packed conductive nano-particles deformation of the substrate disturbs the electrical continuity between the particles resulting in a significant increase in resistivity. The various optical properties of the device may exhibit measurable changes depending on the size and composition of the nano-particles, as well as the means for attaching them to the substrate.
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