Non-faradaic impedance characterization of an evaporating droplet for microfluidic and biosensing applications.

  title={Non-faradaic impedance characterization of an evaporating droplet for microfluidic and biosensing applications.},
  author={Piyush Dak and Aida Ebrahimi and Muhammad Ashraf Alam},
  journal={Lab on a chip},
  volume={14 14},
We have developed a general numerical/analytical theory of non-faradaic impedance of an evaporating droplet, and validated the model by experiments involving droplets of various analyte concentrations deposited on a surface defined by coplanar electrodes. The impedance of the droplet Z(n0,t,f) is analyzed as a function of the concentration (n0) of the ions in the solution, the measurement frequency (f) and the evaporation time (t). We illustrate the versatility of the model by determining the… CONTINUE READING
Recent Discussions
This paper has been referenced on Twitter 1 time over the past 90 days. VIEW TWEETS

From This Paper

Topics from this paper.
5 Citations
21 References
Similar Papers


Publications referenced by this paper.
Showing 1-10 of 21 references

Brakke, Surface Evolver, version 2.70

  • K A.
  • Susquehanna University,
  • 2013


  • E. Salm, C. D. Guevara, +4 authors R. Bashir
  • Natl. Acad. Sci. U. S. A.,
  • 2013

and K

  • S. Ghosh, S. Chattoraj, T. Mondal
  • Bhattacharyya, Langmuir,
  • 2013

and M

  • A. Ebrahimi, P. Dak, E. Salm, S. Dash, S. V. Garimella, R. Bashir
  • A. Alam, Lab Chip,
  • 2013

and S

  • S. Das
  • V Garimella, Langmuir,
  • 2013

and R

  • S. Sadeghi, H. Ding, G. J. Shah, S. Chen, P. Y. Keng, C.-J. Kim
  • M. van Dam, Anal. Chem.,
  • 2012

and A

  • P. J. Yunker, T. Still, M. A. Lohr
  • G. Yodh, Nature,
  • 2011


  • S. T. Thoroddsen, T. G. Etoh, K. Takehara
  • Rev. Fluid Mech.,
  • 2008
1 Excerpt


  • J. Berná, D. A. Leigh, +5 authors F. Zerbetto
  • Mater.,
  • 2005

and N

  • Y. Chen, B. He, J. Lee
  • a Patankar, J. Colloid Interface Sci.,
  • 2005

Similar Papers

Loading similar papers…