Strain and Pressure Gauges from Tough, Conducting and Edible Hydrogels

Abstract

The development of highly conductive, robust edible hydrogels was investigated using a combination of the biopolymers gellan gum and gelatin, a common salt (NaCl) and plant-derived cross-linker (genipin). Robust strain gauge/pressure sensors were developed using edible materials to demonstrate the potential of these hydrogels. The hydrogels exhibited gauge factor and pressure sensitivity values of 7.6 ± 0.1 and 400 ± 7 μΩ/Pa for loads up to 3 kPa, respectively. Furthermore, these devices were able to operate under larger loads with gauge factor and pressure sensitivity values of 0.308 ± 0.002 and 7.17 ± 0.05 μΩ/Pa, respectively, for loads between 9 kPa and 280 kPa.

References

  1. [1]

    D. Trivedi, C. D. Rahn, W. M. Kier, and I. D. Walker, Appl. Bionics Biomech., 5, 3, (2008).

    Article  Google Scholar 

  2. [2]

    E. R. Morris, K. Nishinari, and M. Rinaudo, Food Hydrocoll., 28, 2, (2012).

    Article  Google Scholar 

  3. [3]

    C. Joly-Duhamel, D. Hellio, and M. Djabourov, Langmuir, 18, 19, (2002).

    Google Scholar 

  4. [4]

    J. Y. Sun, X. H. Zhao, W. R. K. Illeperuma, O. Chaudhuri, K. H. Oh, et al., Nature, 489, 7414, (2012).

    Article  Google Scholar 

  5. [5]

    R. Kishi, K. Kubota, T. Miura, T. Yamaguchi, H. Okuzaki, et al., J. Mater. Chem. C, 2, 4, (2014).

    Article  Google Scholar 

  6. [6]

    S.E. Bakarich, G.C. Pidcock, P. Balding, L. Stevens, P. Calvert and M. in het Panhuis, Soft Matter, 8, 9985 (2012).

    CAS  Article  Google Scholar 

  7. [7]

    S.E. Bakarich, M. in het Panhuis, S. Beirne, G.G. Wallace and G. Spinks, J. Mater. Chem. B, 1, 4939 (2013).

    CAS  Article  Google Scholar 

  8. [8]

    D. M. Kirchmajer and M. in het Panhuis, J. Mater Chem. B, 2, 4694 (2014).

    CAS  Article  Google Scholar 

  9. [9]

    S. Yuan, Q. Tang, B. He, and Y. Zhao, J. Power Sources, 260, 225, (2014).

    CAS  Article  Google Scholar 

  10. [10]

    H. Warren, R. D. Gately, P. O’Brien, R. Gorkin, and M. in het Panhuis, J. Polym. Sci. Part B Polym. Phys., 52, 13, (2014).

    Article  Google Scholar 

  11. [11]

    L. Pan, G. Yu, D. Zhai, H.R. Lee, W. Zhao, N. Liu, H. Wang, B.C.K. Tee, Y. Shi, Y. Cui, and Z. Bao, Proc. Natl. Acad. Sci. U.S.A., 109, 9287, (2012).

    CAS  Article  Google Scholar 

  12. [12]

    H. Warren, and M. in het Panhuis, Synth. Met, 206, 61, (2015).

    CAS  Article  Google Scholar 

  13. [13]

    C. Keplinger, J. Y. Sun, C. C. Foo, P. Rothemund, G. M. Whitesides, et al., Science, 341, 6149, (2013).

    Article  Google Scholar 

  14. [14]

    A. Keller and M. in het Panhuis, MRS Proceedings 1717, (2015), doi:10.1557/opl.2015.17

  15. [15]

    L. Pan, A. Chortos, G. Yu, Y. Wang, S. Isaacson, et al., Nat Commun, 5, (2014).

Download references

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Correspondence to Alex Keller.

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Keller, A., Benz, D. & in het Panhuis, M. Strain and Pressure Gauges from Tough, Conducting and Edible Hydrogels. MRS Online Proceedings Library 1795, 27–33 (2015). https://doi.org/10.1557/opl.2015.572

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