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Biodegradation of bio-sourced and synthetic organic electronic materials towards green organic electronics

Author

Listed:
  • Eduardo Di Mauro

    (Polytechnique Montréal)

  • Denis Rho

    (National Research Council Canada)

  • Clara Santato

    (Polytechnique Montréal)

Abstract

Ubiquitous use of electronic devices has led to an unprecedented increase in related waste as well as the worldwide depletion of reserves of key chemical elements required in their manufacturing. The use of biodegradable and abundant organic (carbon-based) electronic materials can contribute to alleviate the environmental impact of the electronic industry. The pigment eumelanin is a bio-sourced candidate for environmentally benign (green) organic electronics. The biodegradation of eumelanin extracted from cuttlefish ink is studied both at 25 °C (mesophilic conditions) and 58 °C (thermophilic conditions) following ASTM D5338 and comparatively evaluated with the biodegradation of two synthetic organic electronic materials, namely copper (II) phthalocyanine (Cu–Pc) and polyphenylene sulfide (PPS). Eumelanin biodegradation reaches 4.1% (25 °C) in 97 days and 37% (58 °C) in 98 days, and residual material is found to be without phytotoxic effects. The two synthetic materials, Cu–Pc and PPS, do not biodegrade; Cu–Pc brings about the inhibition of microbial respiration in the compost. PPS appears to be potentially phytotoxic. Finally, some considerations regarding the biodegradation test as well as the disambiguation of “biodegradability” and “bioresorbability” are highlighted.

Suggested Citation

  • Eduardo Di Mauro & Denis Rho & Clara Santato, 2021. "Biodegradation of bio-sourced and synthetic organic electronic materials towards green organic electronics," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23227-4
    DOI: 10.1038/s41467-021-23227-4
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    Cited by:

    1. Hailong Li & Fanyue Meng & Penglin Zhu & Hongxiao Zu & Zequn Yang & Wenqi Qu & Jianping Yang, 2024. "Biomimetic mercury immobilization by selenium functionalized polyphenylene sulfide fabric," Nature Communications, Nature, vol. 15(1), pages 1-15, December.

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