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Help with surface stress on microcantilever

Hi all,

I'm a PhD student with Electronics Engineering background. I'm doing a research in microcantilever based biosensors.

I'm having difficulties in understanding the adsorption-induced stress in microcantilever.

I would appreciate any advice or pointers on what materials that I can refer to. Besides that, what is the software that I can use to simulate this adsorption phenomenon? 

 

Thanks in advance.

 

Cheers,

Yang

 

Regarding the effect of surface stress on the mechanical response of cantilever sensors, you can find the references as shown in below:

M.J. Lachut and J.E. Sader, "Effect of surface stress on the stiffness of cantilever plates", Phys. Rev. Lett., 99, 206102 (2007)

K. Eom, T.Y. Kwon, Y.S. Yoon, H.-L. Lee, and T.S. Kim, "Dynamical response of nanomechanical resonators to biomolecular interactions", Phys. Rev. B, 76, 113408 (2007)

M.L. Sushko, J.H. Harding, A.L. Schluger, R.A. McKendry, and M. Watari, "Physics of Nanomechanical Biosensing on Cantilever Arrays", Adv. Mater., 20, p3848 (2008)

M.F. Hagan, A. Majumdar, and A.K. Chakraborty, "Nanomechanical Forces Generated by Surface Grafted DNA", J. Phys. Chem. B, 106, p10163 (2002)

K.M. Goeders, J.S. Colton, and L.A. Bottomley, "Microcantilevers: Sensing Chemical Interactions via Mechanical Motion", Chem. Rev., 108, p522 (2008)

J. Dorignac, A. Kalinowski, S. Erramilli, and P. Mohanty, "Dynamical Response of Nanomechanical Oscillators in Immiscible Viscous Fluid for In Vitro Biomolecular Recognition", Phys. Rev. Lett., 96, 186105 (2006)

The references mentioned above provide the models (based on continuum model and/or coupling of continuum model and molecular model) which enables the quantitative characterization of cantilever's response to molecular recognition on the cantilever's surface. Except the references mentioned above, you can also find other references regarding the model of cantilever sensors for biomolecular recognitions. I hope that the references mentioned above may be helpful. 

 

Hi Kilho,

 

Thanks for your reply and the recommended references.

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