Aerospace and Mechanical Engineering
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AEM spotlight:

Here at NASA Ames, I am working under Dr. Nguyen in the nanotechnology lab. My current project is the development of a computer assisted setup that will give us the ability to systematically shorten Carbon Nanotubes. I am using National Instruments Labview to interface to a variety of devices including a voltmeter, ammeter and a picomotor controller. A picomotor will allow us to make precise movements on a picometer scale. Labview, besides helping me to interface to these devices, will allow me to record the desired measurements necessary during the shortening process. Typically, carbon nanotubes, when grown in the lab, are of random length and can be several microns long. Before undergoing the shortening process, they are attached to the end of AFM (Atomic Force Microscope) tips. The idea behind attaching carbon nanotubes to the ends of these AFM tips is to give the microscope greater resolution during the imaging process. In order for these AFM tips with attached carbon nanotubes to work properly, they need to be around 1 micron or less in length. Having a method to shorten carbon nanotubes with the aid of a computer will not only give researchers at NASA Ames lab the ability to more easily create these high resolution AFM tips, but could someday be used in other nanotechnology projects where carbon nanotubes of specific length are required.
-Matthew Edelman

 


Last Modified: Tuesday, 24-Jul-2007 10:10:28 CDT -- this is in International Standard Date and Time Notation