Inkjet-printing of graphene is a desirable additive-manufacturing process for rapid-prototyping and centers around the readily scalable process of liquid-phase exfoliation of graphene. Unfortunately, most common solvents for this process such as N-methyl-2-pyrrolidone (NMP) or cyclohexanone/terpineol (C/T) are toxic. Dihydrolevoglucosenone, commonly known as Cyrene, is a renewable and fully biodegradable non-toxic solvent that represents an ideal alternative. Here, we demonstrate the potential of Cyrene-based graphene inks through few-layer inkjet printing on flexible substrates to produce non-toxic conductors a strain-mediated mechanism for biosensing. These strain-sensors were used to detect bodily motion for wearable electronics, where gel-based, wet-electrodes are a common feature within the broader class of sensors used in electromyography (EMG). The environmentally friendly and non-toxic nature of this solvent has promise not only for wearables, but also in agricultural and food industries where sensors need to be safe for potential contacts made to food supplies. Moreover, it has demonstrated superior suspension of graphene flakes compared to traditional solvents.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc2332665 |
| Date | 05 1900 |
| Creators | Tesky, Allyson R. |
| Contributors | Kaul, Anupama, Meckes, Brian, Li, Lin, Vaidyanathan, Vijay |
| Publisher | University of North Texas |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | Text |
| Rights | Public, Tesky, Allyson R., Copyright, Copyright is held by the author, unless otherwise noted. All rights Reserved. |
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