The vitro/vivo anti-corrosion effect of antibacterial irTENG on implantable magnesium alloys

Wu, Wenxiu; Guo, Naiyuan; Li, Wei; Tang, Chaokun; Zhang, Yixuan; Líu, Hao; Chen, Minfang

doi:10.1016/j.nanoen.2022.107397

Cited by 7 publications

(6 citation statements)

References 23 publications

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“…TENG, as a device for harvesting energy and generating electrical signals, has opened up a new path for human intelligent detection system development. − The electrode layer connecting with the outside closed-circuit is critical for realizing TENG’s function. Traditionally, metals were used such as titanium as the electrode layer and ordinary copper wire as a conductive path . But the flexibility of titanium foil is not good, and contact with wire will cause discomfort.…”

Section: Resultsmentioning

confidence: 99%

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The Fabrication, Properties, and Application of a Printed Green Ag NWs-Based Flexible Electrode and Circuit

Guo

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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A suitable conductive ink for office inkjet printers is important for the convenient design of flexible electrodes for triboelectric nanogenerators (TENG). Ag nanowires (Ag NWs) easily printed with an average short length of 1.65 μm were synthesized by using soluble NaCl as a growth regulator and adjusting the amount of chloride ion. The water-based Ag NWs ink with a low solid content of 1% but with low resistivity was produced. The printed flexible Ag NWs-based electrodes/circuits showed excellent conductivity with R S/R 0 values kept at 1.03 after bending 50,000 times on PI substrate and an excellent anticlimate property in acidic conditions for 180 h on polyester woven fabric. The sheet resistance was reduced to 4.98 Ω/sqr heated at 30–50 °C for 3 min by a blower due to the formed excellent conductive network when compared to Ag NPs-based electrodes. Finally, the integration of printed Ag NWs electrode and circuits was applied to the TENG, which can be used to predict a robot’s out-of-balance direction by the change of the TENG signal. In all, a suitable conductive ink with a short length of Ag NWs was fabricated, and flexible electrodes/circuits can be conveniently and easily printed by office inkjet printers.

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Section: Resultsmentioning

confidence: 99%

“…Traditionally, metals were used such as titanium as the electrode layer and ordinary copper wire as a conductive path. 38 But the flexibility of titanium foil is not good, and contact with wire will cause discomfort. Therefore, the integration of flexible electrodes and conductive wires is needed.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

The Fabrication, Properties, and Application of a Printed Green Ag NWs-Based Flexible Electrode and Circuit

Guo

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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“…Since implantable magnesium alloys are prone to corrosion, Wu et al [ 55 ] designed a TENG (irTENG) in which the open circuit voltage reaches up to 175 V and the short circuit current reaches up to 14 μA. It is confirmed that irTENG can slow down the corrosion rate of Mg-3Zn-0.2Ca alloy in a short-term test ( Figure 9 h).…”

Section: Current Progress In Teng-based Biophysical Sensors and Their...mentioning

confidence: 89%

“…Wu et al [ 55 ] used an implantable rectified Argentum electrode, polydimethylsiloxane, and titanium (PDMS-Ti) in designing a thin film TENG for corrosion protection. The open circuit voltage and short circuit current reached up to 175 V and 14 μA, respectively, which solves the problem of easy corrosion of the implantable magnesium alloy.…”

Section: Current Progress In Teng-based Biophysical Sensors and Their...mentioning

confidence: 99%

“…( f ) Design and working principle of the self-regulated neural electrical stimulation [ 87 ]; Copyright 2022, Wiley-VCH. ( g ) Overview of a TENG-based wear debris detection sensor used in an artificial joint [ 58 ]; Copyright 2021, Elsevier Ltd. ( h ) H 2 releasing volume, Mg 2+ concentration, and pH value in vitro immersion test of Mg−3Zn−0.2Ca alloy corrosion control through irTENG [ 55 ]; Copyright 2022, Elsevier Ltd. ( i ) Electrical stimulation accelerates cardiomyocyte maturation [ 89 ]; Copyright 2022, Elsevier Ltd.…”

Section: Current Progress In Teng-based Biophysical Sensors and Their...mentioning

confidence: 99%

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Biophysical Sensors Based on Triboelectric Nanogenerators

Cao

Wang

2023

Biosensors

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Triboelectric nanogenerators (TENGs) can not only collect mechanical energy around or inside the human body and convert it into electricity but also help monitor our body and the world by providing interpretable electrical signals during energy conversion, thus emerging as an innovative medical solution for both daily health monitoring and clinical treatment and bringing great convenience. This review tries to introduce the latest technological progress of TENGs for applications in biophysical sensors, where a TENG functions as a either a sensor or a power source, and in some cases, as both parts of a self-powered sensor system. From this perspective, this review begins from the fundamental working principles and then concisely illustrates the recent progress of TENGs given structural design, surface modification, and materials selection toward output enhancement and medical application flexibility. After this, the medical applications of TENGs in respiratory status, cardiovascular disease, and human rehabilitation are covered in detail, in the form of either textile or implantable parts for pacemakers, nerve stimulators, and nerve prostheses. In addition, the application of TENGs in driving third-party medical treatment systems is introduced. Finally, shortcomings and challenges in TENG-based biophysical sensors are highlighted, aiming to provide deeper insight into TENG-based medical solutions for the development of TENG-based self-powered electronics with higher performance for practical applications.

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