Flexible non-enzymatic glucose strip for direct non-invasive diabetic management

Qian, Xia; Ko, Anthony; Li, Haifeng; Liao, Caizhi

doi:10.1016/j.microc.2023.109818

Cited by 6 publications

(1 citation statement)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the recent development of sensors, to reduce costs and to expand the application of sensors, flexible substrates have been introduced to replace rigid substrates [15]. New substrates such as plastics, papers, and textiles are now commonly used for producing several types of sensors for different applications like wearable electronics for health monitoring [16] or electronics for gas exposition measurement [17]. Nevertheless, despite the advantages 2 of 17 of flexible substrates, there is an intrinsic limitation due to the use of polymeric or paperbased substrates to provide the thermal resistance.…”

Section: Introductionmentioning

confidence: 99%

Development of Gold Inks for Inkjet Printing of Gas Sensors Electrodes on Plastic Support

Le Porcher,

Rieu,

Viricelle

2024

Electronics

View full text Add to dashboard Cite

Among the conventional inks used for inkjet printing, metals, oxides, or polymers have been deposited in order to form functional coatings. Gold is one of the most used metals for electrode fabrication in the gas sensor field due to its inert behavior when exposed to reactive gases and conductive properties. However, only a few commercial gold inks are commercially available, and the combination of excessive price, a high minimum purchase quantity, and an unknown composition renders the actual products unappealing. To meet these shortcomings, gold inks were formulated with different solvents in order to reach sufficient properties for the inkjet printing process, such as surface tension and viscosity. On the one hand, gold ink was developed using a gold nanoparticle (AuNP) solution as the metal. This ink was optimized from nanoparticle synthesis, with the ink formulation obtaining a 32 mN·m−1 surface tension and 11.2 mPa·s viscosity in order to be inkjet-printed onto polyimide foil. On the other hand, a particle-free ink, called a precursor based of ink, was also developed. In this case, ink was made by solubilizing gold salt in aqueous medium in order to reach jettable properties. Surface tension was measured at 32 mN·m−1 while viscosity was 14.0 mPa·s. Then, printing and deposition parameters were optimized in order to obtain a highly conductive gold coating. The measured resistivity was 2 × 10−7 Ω·m which is close to the bulk gold conductive value. These coatings could be used for the fabrication of various devices in different working fields.

show abstract

Section: Introductionmentioning

confidence: 99%