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Nur, Hassan Mohammed; Song, Jim; Evans, Julian; Edirisinghe, Mohan

doi:10.1023/a:1014827900606

Cited by 53 publications

(13 citation statements)

References 25 publications

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“…A review of the literature disclosed that traditional inkjet printing uses a commercial printer that does not support high-viscosity ink. This negatively affects the print quality [24,53]. In this setup, graphene ink was directly injected using a needle and printed on a PI substrate.…”

Section: Printing Processes and Microscopy Studiesmentioning

confidence: 99%

Viability of Neural Cells on 3D Printed Graphene Bioelectronics

et al. 2019

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Parkinson’s disease (PD) is the second most common neurodegenerative disease in the United States after Alzheimer’s disease (AD). To help understand the electrophysiology of these diseases, N27 neuronal cells have been used as an in vitro model. In this study, a flexible graphene-based biosensor design is presented. Biocompatible graphene was manufactured using a liquid-phase exfoliation method and bovine serum albumin (BSA) for further exfoliation. Raman spectroscopy results indicated that the graphene produced was indeed few-layer graphene (FLG) with ID/IGGraphene= 0.11. Inkjet printing of this few-layer graphene ink onto Kapton polyimide (PI) followed by characterization via scanning electron microscopy (SEM) showed an average width of ≈868 µm with a normal thickness of ≈5.20 µm. Neuronal cells were placed on a thermally annealed 3D printed graphene chip. A live–dead cell assay was performed to prove the biosensor biocompatibility. A cell viability of approximately 80% was observed over 96 h, which indicates that annealed graphene on Kapton PI substrate could be used as a neuronal cell biosensor. This research will help us move forward with the study of N27 cell electrophysiology and electrical signaling.

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Section: Printing Processes and Microscopy Studiesmentioning

confidence: 99%

Viability of Neural Cells on 3D Printed Graphene Bioelectronics

et al. 2019

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“…As part of this rapid development of technology, direct printing technology, especially inkjet printing methods, has come into the spotlight and has been intensively studied due to various advantages: (1) it does not require a mask for patterning, (2) it can be easily applied to largesize substrates, (3) materials are used effectively, (4) processing time is very short, and (5) the equipment is compact and requires minimal investment. To realize these advantages, much research has gone into various fields of application including interconnectors in an electronic circuit, printing color filters, thin-film transistors (TFT) for liquid-crystal displays (LCDs) and plasma displays (PDPs), and microdispensing biomolecular arrays for biosensors.…”

Section: Introductionmentioning

confidence: 99%

“…To realize these advantages, much research has gone into various fields of application including interconnectors in an electronic circuit, printing color filters, thin-film transistors (TFT) for liquid-crystal displays (LCDs) and plasma displays (PDPs), and microdispensing biomolecular arrays for biosensors. [1][2][3][4] As the field of application has widened, available ink materials have diversified and include metals, ceramics, polymer, and hybrid materials. Among them, inkjet metal printing has the widest application field.…”

Section: Introductionmentioning

confidence: 99%

Effect of Microstructural Development on Mechanical and Electrical Properties of Inkjet-Printed Ag Films

Kim

Song

Jung

et al. 2008

Journal of Elec Materi

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The microstructural characterization of inkjet-printed Ag films sintered at various conditions was carried out to analyze the effect of microstructure on mechanical and electrical properties. As expected, the films became denser with grain growth with increasing sintering time and temperature, which resulted in improvement in mechanical properties. However, the resistivity of the films reached a minimum value of 3.0 lX cm before full densification. In order to improve the mechanical properties, pressure-assisted sintering was introduced. As a result, inkjet-printed Ag films sintered at 250°C under 5 MPa showed a tensile strength of 550 MPa, elongation of 2.4%, YoungÕs modulus of 55 GPa, and resistivity of $3.0 lX cm.

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“…Silver is one of the most common types of organometallic inks (Smith et al , 2006; Cummins and Desmulliez, 2012; Teichler et al , 2013), as it can form a wide range of compounds soluble in organic solvents. Other types of organometallic inks are platinum (Cummins et al , 2011), gold (Nur et al , 2002), copper (Rozenberg et al , 2002), nickel (Li et al , 2009) and graphene (Secor et al , 2013). One of the main advantages of the organometallic inks is that they are in a form of a solution rather than particle suspension.…”

Section: Inkjet Printing Techniquesmentioning

confidence: 99%

Inkjet printing for the fabrication of flexible/stretchable wearable electronic devices and sensors

et al. 2018

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Purpose This review paper aims to introduce the inkjet printing as a tool for fabrication of flexible/wearable sensors. It summarizes inkjet printing techniques including various modes of operation, commonly used substrates and inks, commercially available inkjet printers and variables affecting the printing process. More focus is on the drop-on-demand printing mode, a strongly considered printing technique for patterning conductive lines on flexible and stretchable substrates. As inkjet-printed patterns are influenced by various variables related to its conductivity, resistivity, durability and dimensions of printed patterns, the main printing parameters (e.g. printing multilayers, inks sintering, surface treatment, cartridge specifications and printing process parameters) are reported. The embedded approaches of adding electronic components (e.g. surface-mounted and optoelectronic devices) to the stretchable circuit are also included. Design/methodology/approach In this paper, inkjet printing techniques for fabrication of flexible/stretchable circuits will be reviewed. Specifically, the various modes of operation, commonly used substrates and inks and variables affecting the printing process will be presented. Next, examples of inkjet-printed electronic devices will be demonstrated. These devices will be compared to their rigid counterpart in terms of ease of implementation and electrical behavior for wearable sensor applications. Finally, a summary of key findings and future research opportunities will be presented. Findings In conclusion, it is evident that the technology of inkjet printing is becoming a competitor to traditional lithography fabrication techniques, as it has the advantage of being low cost and less complex. In particular, this technique has demonstrated great capabilities in the area of flexible/stretchable electronics and sensors. Various inkjet printing methods have been presented with emphasis on their principle of operation and their commercial availability. In addition, the components of a general inkjet printing process have been discussed in details. Several factors affect the resulting printed patterns in terms of conductivity, resistivity, durability and geometry. Originality/value The paper focuses on flexible/stretchable optoelectronic devices which could be implemented in stretchable circuits. Furthermore, the importance and challenges related to printing highly conductive and highly stretchable lines, as well as reliable electronic devices, and interfacing them with external circuitry for power transmission, data acquisition and signal conditioning have been highlighted and discussed. Although several fabrication techniques have been recently developed to allow patterning conductive lines on a rubber substrate, the fabrication of fully stretchable wearable sensors remains limited which needs future research in this area for the advancement of wearable sensors.

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Untitled

Cited by 53 publications

References 25 publications

Viability of Neural Cells on 3D Printed Graphene Bioelectronics

Viability of Neural Cells on 3D Printed Graphene Bioelectronics

Effect of Microstructural Development on Mechanical and Electrical Properties of Inkjet-Printed Ag Films

Inkjet printing for the fabrication of flexible/stretchable wearable electronic devices and sensors

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