The discovery of stable two-dimensional (2D) materials has effectuated a rapid evolution skin conformal sensors for health monitoring via epidermal electronics. Among the newly discovered 2D materials, MXene stands out as solution-processable material allowing easy fabrication highly conductive thin films with potential to realize flexible sensors. Here, we present successful demonstration Ti3C2–MXene resistor an extremely sensitive strain sensor in form ultrathin mountable temporary tattoo....

Schematic representation of MXene based wearable sensors for various applications.

We report a novel strain sensor based on reduced graphene oxide (rGO) with palladium (Pd) nano-composite. The was fabricated the SS304 stainless-steel substrate using screen-printing method. Graphene synthesized modified Hummer's method and chemical route. Field emission-scanning electron microscope, x-ray diffraction Raman spectroscopy were used to characterize as-synthesized as-fabricated tested for tensile Micro-universal Test Machine change in resistance different strains recorded....

The human body is punctuated with wide array of sensory systems that provide a high evolutionary advantage by facilitating formation detailed picture the immediate surroundings. sensors range across spectrum, acquiring input from non-contact audio-visual means to contact based via pressure and temperature. ambit sensing can be extended further imparting increased capability through phenomenon electrostatics. Here we present graphene-based tattoo sensor for proximity sensing, employing...

Biomonitoring wearable sensors based on two-dimensional nanomaterials have recently elicited keen research interest and potential for a new range of flexible nanoelectronic devices. Practical nanomaterial-based devices suited real-world service, which exhibit first-rate performance while being an attractive accessory, are still distant. We report multifunctional sensor fabricated using ultrathin percolative layer graphene nanosheets laser-patterned gold circular interdigitated electrodes...

This paper presents development and performance assessment of an innovative a highly potent graphene-electrolyte capacitive sensor (GECS) based on the supercapacitor model. Although graphene has been widely researched adapted in supercapacitors as electrode material, this combination not applied technology. A low base capacitance, generally impeding factor sensors, is addressed by incorporating electric double layer capacitance GECS, million-fold increase achieved. The high (∼22.0 μF)...

Flexible strain sensors are emerging rapidly and overcoming the drawbacks of traditional sensors. However, many flexible failed to balance sensitivity, response time, desired sensing range. This work proposes a novel cost-effective sensor which simultaneously achieved high fast response, good It illustrates prototype realized with nanocomposite constituting reduced graphene oxide palladium as primary elements. These were fabricated manual screen-printing technology. The exhibited an...

Reduced graphene oxide (rGO) attracts great popularity as an alternative to pristine because of the facile synthesis process its precursor, (GO). Electrical conduction GO is tunable, subject extent reduction oxygen functional groups in it. This work for first time demonstrates rapid using spark at ambient conditions. A stream generated by applying high electric potential across two electrodes, when passed through a film deposited on porous substrate, reduces it into rGO. Upon sparking,...

This paper demonstrates the application of a graphene–ferric oxide (hollow mesoporous α-Fe2O3 microspheres) nanocomposite for measurement vacuum pressure. Numerous research and industrial systems essentially require environment, therefore, becomes vital their efficient functioning. The presented graphene pressure sensor (GnVS) is fabricated using reduced (rGO)/α-Fe2O3 synthesized by facile safe hydrothermal process. has an impressive operating range spanning 9 orders magnitude down from...

We report, a screen printed nano-composite films made with reduced Graphene Oxide (rGO) and Palladium (Pd) for temperature sensor application. The rGO was synthesized using modified Hummer's method Pd mixed as-synthesized to avoid the agglomeration formed by nano sheets. An array of rGO-Pd were fabricated on flexible kapton substrate printing technique, which is low cost simple process. As-synthesized nano-composite's surface morphology crystallinity studied Field Emission-Scanning Electron...

This paper presents a novel method to fabricate temperature sensor arrays by screen printing Graphene - Nickel (Ni) nanocomposite film on flexible printed circuit board (PCB). Screen is cost effective fabrication technique get uniform thickness substrate. The fabricated array, each having sensing of around 50 μm studied for the response. synthesized RGO nanosheets and RGO-Ni were characterized XRD FE-SEM structural compositional analysis. Temperature variation measured in terms change...

We have developed a flexible reduced graphene oxide (RGO) temperature sensor on filter paper based cellulose substrate using vacuum filtration method. One of the most commonly used synthesized methods for RGO thin films is process. It has several advantages such as simple operation and good controllability. The structural analysis was carried out by FE-SEM, in which surface morphology images confirm formation nanostructures substrate. observed that pores were completely filled with material...

Biomonitoring wearable sensors based on two-dimensional nanomaterials have lately elicited keen research interest and potential for a new range of flexible nanoelectronic devices. Practical nanomaterial-based devices suited real-world service, which first-rate performance while being an attractive accessory, are still distant. We report multifunctional sensor fabricated using ultra-thin percolative layer microwave exfoliated graphene nanosheets laser-patterned gold circular inter-digitated...

We report the fabrication of a flexible tactile sensor using Graphene-Ni composite film encapsulated in Polydimethylsiloxane (PDMS). Synthesis Graphene was carried out by modified Hummer's method. The material characterized XRD and FE-SEM to analyze their structural morphological properties. PDMS films were formed spin coating liquid on metal substrate. — Ni screen printed PDMS. sensor, PDMS, found be highly flexible, cost effective involved simple procedure. In present work, this used...

In this paper we are reporting, a strain sensor fabricated by screen printing method using novel Reduced Graphene Oxide (RGO) and Palladium (Pd) nano-composite on stainless steel substrate. Pd was chosen due to its higher sensitivity compared other metal composites adopted because of low cost easy fabrication. A specified amount filler mixed with RGO enhance functional mechanical properties under application. As-synthesized characterized Field Emission-Scanning Electron Microscope (FE-SEM)...

Abstract For nearly a decade, liquid level sensors have been on the market as white food or beverage products, manufacturing, medical, residential, farming, automotive, aerospace, defense and leak detection measurement devices. The nano material-resistive sensor based reduced graphene oxide is highly sensitive reactive to measurement. This rGO was developed, using screen printing process, material film printed Al 2 O 3 substratum. safety purposes coated with Parylene-C. rGO-based synthesized...

This paper reports a first of its kind reduced Graphene Oxide (rGO) based resistive liquid level sensor. The rGo sensor was fabricated by screen printing rGO film on Al2O3 substrate and selectively coated with Parylene-C. synthesized using Modified Hummer's method. Raman spectroscopy carried out to characterize the film. surface morphology as produced flakes studied FE SEM. A linear relationship between resistance change in water observed, implying easy detection calibration. sensor, cost...