"We live in a world where the lifetime of electronics is becoming shorter, now approaching an average of several months. This poses a growing ecological problem. This brief review will present some of the initial steps taken to address the issue of electronic waste with biodegradable organic electronic materials. Many organic materials have been shown to be biodegradable, safe, and nontoxic, including compounds of natural origin. Additionally, the unique features of such organic materials suggest they will be useful in biofunctional electronics; demonstrating functions that would be inaccessible for traditional inorganic compounds. Such materials may lead to fully biodegradable and even biocompatible/biometabolizable electronics for many low-cost applications. This review highlights recent progress in these classes of material, covering substrates and insulators, semiconductors, and finally conductors."
"Pourquoi ne pas rêver d’une électronique biodégradable, assemblée par des microbes à partir de matières biologiques abondantes sur toute la surface de la planète ?
Ce rêve est plus réel qu’il n’y paraît. Mihai Irimia-Vladu, professeur à l’université de Linz, rapporte dans une publication de 2006 la construction d’un transistor à base de cafféine, de béta-carotène et de sucre caramélisé. Si les processus mis en oeuvre par ce professeur pour produire ses transistors sont loin d’être suffisamment low-tech pour être DIY, la base de matériaux, bio-sourcés et bio-dégradables, n’en est pas moins radicalement prometteuse."
Green and biodegradable electronics:
DIY Bio-Based Electronics
http://www.lapaillasse.org/news/1120/diy-bio-based-electronics (French version)
Do-it-yourself biology: challenges and promises for an open science and technology movement
http://www.lapaillasse.org/wp-content/uploads/2013/08/Landrain_DIYbio_SSBJ_2013.pdf
Genetically engineered plants to produce an organic polymer that can be used to make biodegradable plastic http://www.gizmag.com/metabolix-bioplastic-switchgrass/28578/#!
RépondreSupprimerFair-Trade Smartphones For The Geek With A Conscience. End 2013: the fair-trade smartphone will be available (mail-order).
RépondreSupprimerhttp://www.worldcrunch.com/business-finance/fair-trade-smartphones-for-the-geek-with-a-conscience/fairphone-van-abel-mobile-cell-android/c2s11063/