Page 300 - Mechanical design of microresonators _ modeling and applications
P. 300
0-07-145538-8_CH06_299_08/30/05
Microcantilever and Microbridge Systems for Mass Detection
Microcantilever and Microbridge Systems for Mass Detection 299
(a) (b)
Figure 6.5 Paddle nanobridge with localized (a) 50-nm-diameter gold dot and
(b) 400-nm-diameter gold dot. (Courtesy of Dr. Ilic, the Cornell NanoScale Facility.)
Figure 6.6 Self-assembled thiolate molecule deposited on a paddle cantilever gold dot.
(Courtesy of Dr. Ilic, the Cornell NanoScale Facility.)
Optical Detector Output (AU) 0.8
1.0
0.6
0.4
0.2
0.0
10.20
10.15
10.10
Frequency (MHz) 10.25
Figure 6.7 Resonant frequency shift of a 6-m-long nanocantilever by capture of
baculovirus. (Courtesy of Dr. Ilic, the Cornell NanoScale Facility.)
6.2 General Model of Point-Mass Addition
Detection by Means of the Resonance Shift
Method
When extraneous mass attaches in a pointlike manner on microdevices
such as cantilevers or bridges, and resonant frequency methods are
Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)
Copyright © 2004 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.
