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Active nanostructures

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Is There A Shift To ‘Active Nanostructures'?, Vrishali Subramanian, Alan L. Porter, Jan Youtie, Philip Shapira Jan 2010

Is There A Shift To ‘Active Nanostructures'?, Vrishali Subramanian, Alan L. Porter, Jan Youtie, Philip Shapira

Philip Shapira

It has been suggested that an important transition in the long-run trajectory of nanotechnology discovery and application is a shift from passive to active nanostructures. Such a shift could present increased societal impacts and need new approaches for risk assessment. The National Science Foundation’s (NSF) Active Nanostructures and Nanosystems (ANN) grant solicitation defines an active nanostructure as “An active nanostructure changes or evolves its state during its operation.” Active nanostructures examples include nanoelectromechanical systems (NEMS), nanomachines, self-healing materials, targeted drugs and chemicals, energy storage devices, and sensors. This paper considers two questions: (1) Is there a “shift” to active ...