Biomedical Microdevices

, Volume 15, Issue 2, pp 311–319 | Cite as

Micromechanical properties of hydrogels measured with MEMS resonant sensors

  • Elise A. Corbin
  • Larry J. Millet
  • James H. Pikul
  • Curtis L. Johnson
  • John G. Georgiadis
  • William P. King
  • Rashid Bashir


Hydrogels have gained wide usage in a range of biomedical applications because of their biocompatibility and the ability to finely tune their properties, including viscoelasticity. The use of hydrogels on the microscale is increasingly important for the development of drug delivery techniques and cellular microenvironments, though the ability to accurately characterize their micromechanical properties is limited. Here we demonstrate the use of microelectromechanical systems (MEMS) resonant sensors to estimate the properties of poly(ethylene glycol) diacrylate (PEGDA) microstructures over a range of concentrations. These microstructures are integrated on the sensors by deposition using electrohydrodynamic jet printing. Estimated properties agree well with independent measurements made using indentation with atomic force microscopy.


MEMS mass sensor Electrohydrodynamic jet printing Polyethylene glycol Mass-spring-damper system Hydrogel micromechanics 


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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Elise A. Corbin
    • 1
    • 2
  • Larry J. Millet
    • 2
  • James H. Pikul
    • 1
  • Curtis L. Johnson
    • 1
  • John G. Georgiadis
    • 1
  • William P. King
    • 1
    • 2
  • Rashid Bashir
    • 2
    • 3
  1. 1.Department of Mechanical Science and EngineeringUniversity of Illinois Urbana-ChampaignUrbanaUSA
  2. 2.Micro and Nanotechnology LaboratoryUniversity of Illinois Urbana-ChampaignUrbanaUSA
  3. 3.Department of Electrical and Computer EngineeringUniversity of Illinois Urbana-ChampaignUrbanaUSA

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