> The methods used for preparing ZnO NPs screen-printing paste were based and adapted from the literature.[71] First, the vehicle was prepared by dissolving 5 %wt Ethyl Cellulose 300 cP (C6H7O2 (OC2H5)3; CAS: 9004-57-3) from Aldrich on an 80:20 toluene/ethanol solution (C6H5CH3; CAS: 108-88- 3/ C2H6O; CAS: 64-17-5). After complete dissolution, which takes around 12 hours under stirring at 600 rpm, 0.25, 0.5, 0.75 and 1 g of ZnO nanopowder, <100 nm particle size (CAS: 1314-13-2) from Aldrich were added always in the same amount of vehicle. The solutions should be kept under continuous stirring until their complete dispersion.
##### [Handwritten and sustainable electronic logic circuits with fully**printed**paper**transistors**](https://onlinelibrary.wiley.com/doi/abs/10.1002/admt.202100633)
##### [All-printed large-scale integrated circuits based on organic electrochemical transistors](https://www.nature.com/articles/s41467-019-13079-4)
PEDOT-PSS
##### すべてが紙でできた「使い捨てできる電子回路基板」を開発
https://nazology.net/archives/115885
3Dプリントによるトランジスタもプリント技術・・・か
“Printable and Recyclable Carbon Electronics Using Crystalline Nanocellulose,” Nicholas X. Williams, George Bullard, Nathaniel Brooke, Michael J Therien, Aaron D. Franklin. Nature Electronics, April 26, 2021. DOI: 10.1038/s41928-021-00574-0
