Inkjet-Printed, Nanofiber-Based Soft Capacitive Pressure Sensors for Tactile Sensing

Mikkonen, Riikka; Koivikko, Anastasia; Vuorinen, Tommi; Sariola, Veikko; Mäntysalo, Matti

doi:10.1109/jsen.2021.3085128

Cited by 14 publications

(15 citation statements)

References 39 publications

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“…have demonstrated using inkjet printing to fabricate soft capacitive pressure sensors for tactile sensing using PDMS as the dielectric layer and silver nanoparticle ink for the conductive electrodes. [ 222 ] On the other hand, Faller et al. fabricated an integrated capacitive multimodal sensor using hybrid 3D printing technology that combines 3D printing and inkjet printing for the fabrication of a robotic gripper.…”

Section: Design and Fabrication Of Soft Sensors For Soft Grippermentioning

confidence: 99%

“…For instance, Mikkonen et al have demonstrated using inkjet printing to fabricate soft capacitive pressure sensors for tactile sensing using PDMS as the dielectric layer and silver nanoparticle ink for the conductive electrodes. [222] On the other hand, Faller et al fabricated an integrated capacitive multimodal sensor using hybrid 3D printing technology that combines 3D printing and inkjet printing for the fabrication of a robotic gripper. [223] Interestingly, inkjet printing has been used for the coating of the passivation layer for smoothening of the surface of 3D printed structure to facilitate subsequent printing of electronics on the surface.…”

Section: Material-jetting Techniquesmentioning

confidence: 99%

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3D Printing of Robotic Soft Grippers: Toward Smart Actuation and Sensing

Goh

Lyu

Ariffin

et al. 2022

Adv Materials Technologies

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Unlike traditional hard grippers, soft robotic grippers are commonly made of soft materials so that the soft grippers can produce motion via elastic deformations of their compliant components. The advantages of compliance allow soft grippers to effectively eliminate shocks caused by hard contact, which usually occurs when a hard robotic gripper manipulates a hard object. Until now, the soft robotic grippers are able to operate numerous objects with irregular geometries and different textures. Besides, with the help of embedded sensors, soft robotic grippers have facilitated the growing automation of many tasks, which are thought to be far too delicate for robotic manipulation. This paper reviews the advancement in soft robotic grippers. The paper first introduces the actuation technologies followed by the design and fabrication techniques. The use of 3D printing techniques in the fabrication of the soft gripper is also discussed. The Review then highlights the challenges and future outlook in the fabrication of soft grippers and sensors.

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Section: Design and Fabrication Of Soft Sensors For Soft Grippermentioning

confidence: 99%

Section: Material-jetting Techniquesmentioning

confidence: 99%

3D Printing of Robotic Soft Grippers: Toward Smart Actuation and Sensing

Goh

Lyu

Ariffin

et al. 2022

Adv Materials Technologies

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“…Inkjet printing technologies have been widely used for the development of flexible electronics as they offer a fabrication alternative to lithography-based approaches [ 68 , 98 ], introduce the use of new intrinsically stretchable inks [ 39 , 97 , 99 , 100 , 101 , 102 , 103 , 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 , 132 , 133 ], and avoid the challenges related to the brittleness of traditional materials used to manufacture tactile sensors [ 7 , 82 , 134 , 135 , 136 , 137 , 138 , 139 , 140 , 141 , 142 ,…”

Section: Inkjet Printing Technologymentioning

confidence: 99%

“…Basak et al [ 136 ] and Zhang et al [ 152 ] developed their printed capacitive sensors on thermoplastic polyurethane (TPU) and aluminium substrates, respectively. Mikkonen et al [ 140 ] proposed a novel approach using a water-soluble polyvinyl alcohol (PVA) layer as the substrate.…”

Section: Inkjet Printed Tactile Sensorsmentioning

confidence: 99%

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An Atlas for the Inkjet Printing of Large-Area Tactile Sensors

Baldini

Albini²,

Maiolino³

et al. 2022

Sensors

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This review aims to discuss the inkjet printing technique as a fabrication method for the development of large-area tactile sensors. The paper focuses on the manufacturing techniques and various system-level sensor design aspects related to the inkjet manufacturing processes. The goal is to assess how printed electronics simplify the fabrication process of tactile sensors with respect to conventional fabrication methods and how these contribute to overcoming the difficulties arising in the development of tactile sensors for real robot applications. To this aim, a comparative analysis among different inkjet printing technologies and processes is performed, including a quantitative analysis of the design parameters, such as the costs, processing times, sensor layout, and general system-level constraints. The goal of the survey is to provide a complete map of the state of the art of inkjet printing, focusing on the most effective topics for the implementation of large-area tactile sensors and a view of the most relevant open problems that should be addressed to improve the effectiveness of these processes.

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Smart Bandage with Inductor‐Capacitor Resonant Tank Based Printed Wireless Pressure Sensor on Electrospun Poly‐L‐Lactide Nanofibers

Nikbakhtnasrabadi

Hosseini

Dervin

et al. 2022

Adv Elect Materials

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in many ways advantageous compared to the matured silicon-based technology. For example, high temperature process steps are incompatible with flexible substrates (e.g., polyethylene terephthalate (PET), polyethylene naphtholate (PEN), and Polydimethylsiloxane (PDMS), etc.), which are typically needed in emerging applications such as electronic skin, [1,5] and smart packages. [6] Several flexible wearable sensors have been developed on such substrates for biomedical applications to monitor parameters, such as sweat pH, [7] temperature, [8] humidity, [9] etc. Likewise, various force and pressure sensors have been developed to monitor physiological parameters such as blood pressure, respiration, and heart rate, etc. [10][11][12][13][14] It is preferable to have wireless data transmission from such sensors, as commonly employed hard wired approach does not consider user comfort. Therefore, the advanced technologies in this field aim to develop biocompatible and light weight wearable sensors with fully integrated wireless system capable of continuous monitoring of physiological parameters. In this regard, Radiofrequency Identification (RFID) sensor tags are attractive as they eliminate the use of battery and the complexity of wired electronics. [15,16] These tags are generally designed for highfrequency range (HF) 13.56 MHz band and ultrahigh frequency (UHF) range (860-960 MHz band depending on local regulations). However, with human body acting as a lossy medium with a high dielectric constant, the performance of RFID tags deteriorates when they are used for wireless epidermal sensing.In contrast to far field-based systems, the HF band (3-30 MHz) allows devices to communicate through an inductive coupling in the near field region without emitting energy in far field. This short-range system is a promising alternative to transmit power and data where the medium is highly lossy for instance, human tissue. Most commercial sensing tags include a chip to store and process the RF signal, whereas in chipless tags no electronic components are included. [16,17] LC circuit working in HF region can be used as a nondestructive sensing platform in biomedical applications, especially as an implant. [18,19] Motivated by the above challenges, herein we have used the LC tank-based approach for wireless sensing. Easy to use multifunctional wearable devices, with no wires hanging around, are needed for real time health monitoring at user's comfort. Herein, an inductor-capacitor (LC) resonant tank-based wireless pressure sensor, screenprinted on an electrospun Poly-L-lactide (PLLA) nanofibers-based flexible, biocompatible, and piezoelectric substrate is presented. The printed resonant tank (resonant frequency of ≈13.56 MHz) consists of a planar inductor connected in parallel with an interdigitated capacitor. The capacitance, of the interdigitated capacitor present on the piezoelectric substrate varies in response to applied pressure. As a result, the resonant frequency changes and the LC tank works as a wireless pressure sensor. The sen...

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Inkjet-Printed, Nanofiber-Based Soft Capacitive Pressure Sensors for Tactile Sensing

Cited by 14 publications

References 39 publications

3D Printing of Robotic Soft Grippers: Toward Smart Actuation and Sensing

3D Printing of Robotic Soft Grippers: Toward Smart Actuation and Sensing

An Atlas for the Inkjet Printing of Large-Area Tactile Sensors

Smart Bandage with Inductor‐Capacitor Resonant Tank Based Printed Wireless Pressure Sensor on Electrospun Poly‐L‐Lactide Nanofibers

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