Biodegradable electronics

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Biodegradable electronics are electronic circuits and devices with a limited lifetime owing to their tendency to biodegrade. Such devices are proposed to represent useful medical implants.[1][2]

Organic electronic devices as compostable material platforms have been fabricated on aluminum foil[3] and paper[4] to accommodate these expanded functionalities. In one embodiment of this idea, paper films were utilized as a combination substrate and gate dielectric for use with pentacene-based active layers.[4] This idea was expanded upon to create complete circuits using foldable paper-based substrates.

Silk coatings could underpin an electronic devices because it melts away when the device is no longer needed. One test device, a heating circuit powered by beaming radio waves at it, was implanted under the skin of a rat with a wound. After the wound had healed, the implant simply melts away. The US military research agency DARPA funded research on building a tiny dissolving camera with this silk coating for use as a disposable spy camera.[5]

References[edit]

  1. ^ Kim DH, Kim YS, Amsden J, Panilaitis B, Kaplan DL, Omenetto FG, Zakin MR, and Rogers JA (2009). "Silicon electronics on silk as a path to bioresorbable, implantable devices". Appl. Phys. Lett. 95, 133701. 
  2. ^ J. A. Rogers et al "Epidermal Electronics" Science 2011, Vol. 333 no. 6044 pp. 838-843.doi:10.1126/science.1206157
  3. ^ Yoon M-H, Yan H, Facchetti A, Marks TJ (30 June 2005). "Low-Voltage Organic Field-Effect Transistors and Inverters Enabled by Ultrathin Cross-Linked Polymers as Gate Dielectrics". J Am Chem Soc 127 (29): 10388–95. doi:10.1021/ja052488f. PMID 16028951. 
  4. ^ a b Yong-Hoon K, Dae-Gyu M, Jeong-In H (2004). "Organic TFT array on a paper substrate". IEEE Elec Dev Lett 25 (10): 702–4. doi:10.1109/LED.2004.836502. 
  5. ^ "Silk holds the key to devices that dissolve after use".