Advances in triboelectric pressure sensors

Guo, Linan; Wu, Guitao; Wang, Qunyi; Li, Tong; Yao, Bohan; Zou, Yongjiu; Xu, Minyi

doi:10.1016/j.sna.2023.114331

Cited by 10 publications

(11 citation statements)

References 187 publications

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“…output, and consistent across a wide range of operating frequencies. [161][162][163] Additionally, the body has a wealth of biomechanical energy sources that can be readily harnessed and used to track vitals without interruption (Figure 2H). As a result, the TENG has become one of the most viable options for battery-less energy acquisition and respiration monitoring.…”

Section: Teng Working Principlementioning

confidence: 99%

“…Because of its many advantages, the TENG has been the focus of many new respiration monitoring devices, especially for chemical breath analysis 78,125,159,160 . Not only can the TENG be constructed out of extremely cheap materials, but also it is lightweight, high in voltage output, and consistent across a wide range of operating frequencies 161–163 . Additionally, the body has a wealth of biomechanical energy sources that can be readily harnessed and used to track vitals without interruption (Figure 2H).…”

Section: Teng Working Principlementioning

confidence: 99%

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Advances in triboelectric nanogenerators for self‐powered wearable respiratory monitoring

Kwak,

Yin,

Wang

et al. 2024

FlexMat

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Triboelectric nanogenerators (TENGs) have recently gained attention as a compelling platform technology for building wearable bioelectronics. Aside from being self‐powered, TENGs are lightweight, low in cost, rich in material choice, comfortable to wear, and increasingly versatile with advances in sensitivity and efficiency. Due to these features, TENGs have become appealing in biomedical sensing applications, especially for human respiration monitoring. A wealth of information can be collected by breath‐induced electrical signals, which are crucial in the analysis of a patient's respiratory condition and the early detection of harmful respiratory‐linked diseases. TENGs have thus been used to continuously collect important respiratory data, from the breathing patterns, flow rate, and intensity of an individual's respiratory cycle to the chemicals that may be present in their breath. This review paper provides an overview of recent developments in TENG‐based wearable respiratory monitoring as well as future opportunities and challenges for respiratory healthcare.

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Section: Teng Working Principlementioning

confidence: 99%

Section: Teng Working Principlementioning

confidence: 99%

Advances in triboelectric nanogenerators for self‐powered wearable respiratory monitoring

Kwak,

Yin,

Wang

et al. 2024

FlexMat

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“…To address this, Luo et al used Cu mesh for flexible electrodes in a glove-based hand-motion sensor . Therefore, the production of triboelectric electrode materials has encountered challenges related to complexity and cost . Despite significant advances in wearable sensing in recent years, many issues, such as increasing output yield, reducing fabrication costs, and designing stable devices for long-term applications, need to be addressed.…”

Section: Introductionmentioning

confidence: 99%

“…55 Therefore, the production of triboelectric electrode materials has encountered challenges related to complexity and cost. 48 Despite significant advances in wearable sensing in recent years, many issues, such as increasing output yield, reducing fabrication costs, and designing stable devices for long-term applications, need to be addressed. To this end, the integration of printed electronics into the TENG structure opens up new opportunities for developing wearable devices.…”

Section: Introductionmentioning

confidence: 99%

“…Various materials, including carbon-based materials, conductive polymers, and metal-based layers, have been employed as flexible electrodes. , He et al utilized a conducting polymer made of poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS) as an electrode and positive triboelectric material in the arc-shaped structure of pressure sensor for various control applications in real/cyberspace . Conductive polymers, despite their flexibility and transparency, exhibit limitations in terms of conductivity and stability. , …”

Section: Introductionmentioning

confidence: 99%

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Smart Printed Triboelectric Wearable Sensor with High Performance for Glove-Based Motion Detection

Seifaddini,

Sheikhahmadi,

Kolahdouz

et al. 2024

ACS Appl. Mater. Interfaces

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In a world increasingly driven by data, wearable triboelectric nanogenerators (TENGs) offer a convenient way to monitor and collect information about human body motions. To meet the demands of the large-scale production of wearable TENGs, material selection to realize a high conversion efficiency and simplify the fabrication process remains a challenge. To address these issues, we present a simple-structured wearable printed arcshaped triboelectric sensor (PATS) for finger motion detection by leveraging inkjet printing technology. In this regard, pressure sensors composed of diverse materials based on dielectric− dielectric and metal−dielectric structures in contact-separation mode were fabricated and compared. Thanks to the unique characteristics of the silver nanoparticle (Ag-NP)-printed layer and silicon rubber (SR), the SR−Ag PATS shows a high peak-to-peak voltage of 14.15 V and a short-circuit current of 0.78 μA. The proposed sensor with the capability of accurately identifying finger motions at various bending angles suggests promising application potential in glove-based human−machine interface (HMI) systems.

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Active Osteoblasts or Quiescent Bone Lining Cells? Preosteoblasts Fate Orchestrated by Curvature and Stiffness of an In Vitro 2.5D Biomimetic Culture System

Ozanne,

Moubri,

Abou‐Nassif

et al. 2023

Adv Healthcare Materials

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Biomimetic cell culture systems are required to provide more physiologically relevant microenvironments for bone cells. Here, a simple 2.5D culture platform is proposed, combining adjustable stiffness and surface features that mimic bone topography by using sandpaper grits as master molds with two stiffness formulations of polydimethylsiloxane (PDMS). The subsequent replicas perfectly conform the grits and reproduce the corresponding negative relief with cavities separated by convex edges. Biomimicry is also provided by an extracellular matrix (ECM)‐like thin film coating, using the layer‐by‐layer (LbL) method. The topographical features, alternating concave, and convex structures drive preosteoblasts organization and morphology. Strikingly, curvature orchestrates the commitment of preosteoblasts, with i) maturation to active osteoblasts able to produce a dense collagenous matrix that ultimately mineralizes in the cavities, and ii) edges hosting quiescent cells that synthetize a very thin immature collagen layer with no mineralization. In summary, the present in vitro culture system model offers a cell‐instructive 2.5D microenvironment that controls preosteoblasts fate, leading to two coexisting subpopulations: mature osteoblasts and bone lining cells (BLC). This promising culture system opens new avenues to advanced tissue‐engineered modeling and can be applied to precellularized bone biomaterials.

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Advances in triboelectric pressure sensors

Cited by 10 publications

References 187 publications

Advances in triboelectric nanogenerators for self‐powered wearable respiratory monitoring

Advances in triboelectric nanogenerators for self‐powered wearable respiratory monitoring

Smart Printed Triboelectric Wearable Sensor with High Performance for Glove-Based Motion Detection

Active Osteoblasts or Quiescent Bone Lining Cells? Preosteoblasts Fate Orchestrated by Curvature and Stiffness of an In Vitro 2.5D Biomimetic Culture System

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