Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-23T17:12:54.987Z Has data issue: false hasContentIssue false
  • English
  • Français

Surface Stress Generation During Formation of Alkanethiol Self-assembled Monolayer (SAM)

Published online by Cambridge University Press:  01 February 2011

Kanaga Karuppiah Kanaga Subramanian ,
Ruqin Zhang ,
Pranav Shrotriya ,
Abhijit Chandra  and
Sriram Sundararajan
Kanaga Karuppiah Kanaga Subramanian
Affiliation:
[email protected], Iowa State University, Mechanical Engineering, 0087 Black Engineering Building, Mechanical Engineering Department, Iowa State University, Ames, IA, 50011, United States, 515-294-8020, 515-294-3261
Ruqin Zhang
Affiliation:
[email protected], Iowa State University, Mechanical Engineering, Ames, IA, 50011, United States
Pranav Shrotriya
Affiliation:
[email protected], Iowa State University, Mechanical Engineering, Ames, IA, 50011, United States
Abhijit Chandra
Affiliation:
[email protected], Iowa State University, Mechanical Engineering, Ames, IA, 50011, United States
Sriram Sundararajan
Affiliation:
[email protected], Iowa State University, Mechanical Engineering, Ames, IA, 50011, United States
Get access

Abstract

Micro-machined cantilevers coated with self-assembled monolayers (SAM) of alkanethiols are being utilized as sensing elements for new generation of high-sensitivity chemical and biological sensors. Presence of chemical species is detected by resolving the surface stress change associated with absorption/adsorption of analyte molecules on the sensitized cantilever. Challenges to widespread use of micromechanical cantilever sensors are: susceptibility to vibrations, integration in a single device and understanding the mechanism governing surface stress generation. In the current work, surface stress development associated with formation of self-assembled-monolayers of alkanethiols was characterized using curvature interferometry. In order to understand the molecular mechanism underlying the surface stress generation, a multi-scale model is developed to predict the surface stress generated during absorption of the alkanethiols on a gold film.

Keywords

self-assemblysensorgrain size
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 951: Symposium E – Nanofunctional Materials, Nanostructures and Novel Devices for Biological and Chemical Detection , 2006 , 0951-E12-05
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Thundat, T., Warmack, R.J., Chen, G.Y. and Allison, D.P., “Thermal and Ambient-Induced Deflections of Scanning Force Microscope Cantilevers,” Applied Physics Letters 64, 2894–2896 (1994).Google Scholar
[2] Thundat, T., Wachter, E.A., Sharp, S.L. and Warmack, R.J., “Detection of Mercury-Vapor Using Resonating Microcantilevers,” Applied Physics Letters 66, 1695–1697 (1995).Google Scholar
[3] Berger, R., Delamarche, E., Lang, H.P., Gerber, C., Gimzewski, J.K., Meyer, E. and Guntherodt, H.J., “Surface stress in the self-assembly of alkanethiols on gold,” Science 276, 2021–2024 (1997).Google Scholar
[4] Godin, M., Williams, P.J., Tabard-Cossa, V., Laroche, O., Beaulieu, L.Y., Lennox, R.B. and Grutter, P., “Surface stress, kinetics, and structure of alkanethiol self-assembled monolayers,” Langmuir 20, 7090–7096 (2004).Google Scholar
[5] Ji, H.F., Finot, E., Dabestani, R., Thundat, T., Brown, G.M. and Britt, P.F., “A novel selfassembled monolayer (SAM) coated microcantilever for low level caesium detection,” Chemical Communications 457–458 (2000).Google Scholar
[6] Raiteri, R., Butt, H.J. and Grattarola, M., “Changes in surface stress at the liquid/solid interface measured with a microcantilever,” Electrochimica Acta 46, 157–163 (2000).Google Scholar
[7] Stevenson, K.A., Mehta, A., Sachenko, P., Hansen, K.M. and Thundat, T., “Nanomechanical effect of enzymatic manipulation of DNA on microcantilever surfaces,” Langmuir 18, 8732–8736 (2002).Google Scholar
[8] Ulman, A., An Introduction to Ultrathin Organic Films: From Langmuir–Blodgett to Self–Assembly ed. Editor (Academic Press, 1991)Google Scholar
[9] Wang, J., Shrotriya, P. and Kim, K.S., “Surface residual stress measurement using curvature interferometry,” Experimental Mechanics 46, 39–46 (2006).Google Scholar
[10] Stoney, G.G., “The Tension of Metallic Films Deposited by Electrolysis,” Proceedings of the Royal Society of London Series A, Containing Papers of a Mathematical and Physical Character 82, 172–175 (1909).Google Scholar
[11] Kukta, R.V., Kouris, D. and Sieradzki, K., “Adatoms and their relation to surface stress,” Journal of the Mechanics and Physics of Solids 51, 1243–1266 (2003).Google Scholar
[12] Foiles, S.M., Baskes, M.I. and Daw, M.S., “Embedded-Atom-Method Functions for the Fcc Metals Cu, Ag, Au, Ni, Pd, Pt, and Their Alloys,” Physical Review B 33, 7983–7991 (1986).Google Scholar
[13] Beardmore, K.M., Kress, J.D., Bishop, A.R. and GronbechJensen, N., “Ab-initio calculations of the gold-sulfur interaction for alkanethiol monolayers,” Synthetic Metals 84, 317–318 (1997).Google Scholar