Title :
Three-layer quantitative extraction of molecule self-assembly induced surface-stress by cantilever nanomechanical detection
Author :
Zuo, Guomin ; Li, Xinxin
Author_Institution :
Chinese Acad. of Sci., Shanghai
Abstract :
Reported is a novel technique to analyze the surface-stress generated during a SAM (self-assembled molecule-layer) modified on a solid-surface. The individual surface-stress contribution from the three interaction layers, i.e. the surface/head-group interfacial layer, the molecular chain/chain layer and the tail-group/medium layer, can be quantitatively extracted. The quantitative extraction can be implemented by testing the self-assembly induced surface-stress for a group of related SAMs with cantilever sensors. The technique helps to reveal SAM-based nanomechanical sensing mechanism and to optimally design cantilever bio/chemical sensors.
Keywords :
biosensors; cantilevers; chemical sensors; microsensors; nanotechnology; self-assembly; biosensor; cantilever nanomechanical detection; cantilever sensors; chemical sensor; molecular chain-chain layer; molecule self-assembly; surface-head-group interfacial layer; surface-stress generation; tail-group-medium layer; three-layer quantitative extraction; Biosensors; Chemical and biological sensors; Chemical sensors; Coatings; Gold; Piezoresistance; Self-assembly; Solvents; Stress; Substrates;
Conference_Titel :
Micro Electro Mechanical Systems, 2008. MEMS 2008. IEEE 21st International Conference on
Conference_Location :
Tucson, AZ
Print_ISBN :
978-1-4244-1792-6
Electronic_ISBN :
1084-6999
DOI :
10.1109/MEMSYS.2008.4443811