Mechanical durability enhancement of gold-nanosheet stretchable electrodes for wearable human bio-signal detection

Jeong, Sang Won; Heo, Seojun; Kang, Min-Seong; Kim, Hae-Jin

doi:10.1016/j.matdes.2020.109178

Cited by 22 publications

(7 citation statements)

References 52 publications

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“…The wet chemical method in water or EG at a low temperature (<150 °C) is a popular approach to the synthesis of Au nanosheets using hydrogen tetrachloroaurate trihydrate (HAuCl 4 ·3H 2 O) as the Au precursor and l -arginine as the capping agent. − Moon et al synthesized Au nanosheets by dissolving HAuCl 4 ·3H 2 O and l -arginine in water and heating the mixture at 95 °C for 2 h. The obtained nanosheets showed lateral dimensions ranging from 20 to 50 μm and a thickness of 20 nm (Figure a) . Besides l -arginine, PVP, ,, CTAB, dodecyl glyceryl itaconate, other polymers, and proteins could also be used as capping agents to synthesize Au nanosheets.…”

Section: Materials Developments Of 2d Metal Nanosheetsmentioning

confidence: 99%

“…Gold nanosheets were studied for their applications as mechanical sensors to detect the human motion because they could retain high electrical conductivity under various deformation conditions. − A highly conductive and electromechanically self-healable Au nanosheet electrode was prepared on a self-healable polymer and studied for stretchable electronics . The Au-based electrode exhibited good electrical conductivity (>570 S cm –1 ) and stable electromechanical performance over 300 repetitive stretching test cycles.…”

Section: Applications Of 2d Metal Nanosheetsmentioning

confidence: 99%

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Two-Dimensional Metal Nanostructures: From Theoretical Understanding to Experiment

Zhang

Yang

2023

Chem. Rev.

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This paper reviews recent studies on the preparation of two-dimensional (2D) metal nanostructures, particularly nanosheets. As metal often exists in the high-symmetry crystal phase, such as face centered cubic structures, reducing the symmetry is often needed for the formation of low-dimensional nanostructures. Recent advances in characterization and theory allow for a deeper understanding of the formation of 2D nanostructures. This Review firstly describes the relevant theoretical framework to help the experimentalists understand chemical driving forces for the synthesis of 2D metal nanostructures, followed by examples on the shape control of different metals. Recent applications of 2D metal nanostructures, including catalysis, bioimaging, plasmonics, and sensing, are discussed. We end the Review with a summary and outlook of the challenges and opportunities in the design, synthesis, and application of 2D metal nanostructures.

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Section: Materials Developments Of 2d Metal Nanosheetsmentioning

confidence: 99%

Section: Applications Of 2d Metal Nanosheetsmentioning

confidence: 99%

Two-Dimensional Metal Nanostructures: From Theoretical Understanding to Experiment

Zhang

Yang

2023

Chem. Rev.

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“…In this way, smooth ECG signals were monitored, as depicted in Figure 4 , and displayed using Matlab [ 66 ]. The AD8283 was also used to investigate different electrodes in combination with an Arduino board [ 69 ].…”

Section: Ecg and Pulse Measurementsmentioning

confidence: 99%

Measuring Biosignals with Single Circuit Boards

Ehrmann¹,

Błachowicz

Homburg

et al. 2022

Bioengineering

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To measure biosignals constantly, using textile-integrated or even textile-based electrodes and miniaturized electronics, is ideal to provide maximum comfort for patients or athletes during monitoring. While in former times, this was usually solved by integrating specialized electronics into garments, either connected to a handheld computer or including a wireless data transfer option, nowadays increasingly smaller single circuit boards are available, e.g., single-board computers such as Raspberry Pi or microcontrollers such as Arduino, in various shapes and dimensions. This review gives an overview of studies found in the recent scientific literature, reporting measurements of biosignals such as ECG, EMG, sweat and other health-related parameters by single circuit boards, showing new possibilities offered by Arduino, Raspberry Pi etc. in the mobile long-term acquisition of biosignals. The review concentrates on the electronics, not on textile electrodes about which several review papers are available.

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“…[18][19][20][21][22] Mechanical, electromagnetic, and acoustic motion capture systems are rarely applied in practice because of the poor flexibility and low precision of the mechanical measuring equipment, the demanding environment required to produce electromagnetic waves, and the large delay and low resolution associated with ultrasonication, respectively. [23][24][25] An optical motion capture system is the most mature and accurate motion capture technology and has been widely applied to motion analysis, virtual reality (VR), and human-computer interaction. [26][27][28] High-speed cameras play a critical role in optical motion capture systems by capturing images of markers attached to the human body in motion and transmitting these images to a central processing unit (CPU).…”

Section: Introductionmentioning

confidence: 99%

Digitizing Human Motion via Bending Sensors toward Humanoid Robot

Liu

Liao

Chen

et al. 2023

Advanced Intelligent Systems

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A humanoid robot is an advanced representation of robot techniques. It can move like a human and possesses the ability to use human tools. Sensing and intelligent control technologies have increased the intelligence of humanoid robots. However, the dexterity of a humanoid robot is still far from that of a human. Herein, a bending sensor is introduced to detect human motion, which can thus be digitized to enable a humanoid robot to learn to be more dexterous. This bending sensor is fabricated of carbon fiber with a cascade structure, resulting in excellent characteristics, including a quantitative detection capability, high gauge factor, low hysteresis, long‐term durability, and high‐frequency response. Thus, the bending sensor can recognize both the large‐scale motion of joint bending and subtle motion of muscle contraction. Fourteen bending sensors corresponding to the 14 knuckles of the human hand can accurately recognize and digitize hand gestures. These multichannel sensors are combined with nine additional bending sensors to comprehensively digitize the grasping process of the upper limb and recognize the grasping of objects with different sizes and weights. These successful applications demonstrate that the bending sensor can open a path toward learning human behavior for a humanoid robot.

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Mechanical durability enhancement of gold-nanosheet stretchable electrodes for wearable human bio-signal detection

Cited by 22 publications

References 52 publications

Two-Dimensional Metal Nanostructures: From Theoretical Understanding to Experiment

Two-Dimensional Metal Nanostructures: From Theoretical Understanding to Experiment

Measuring Biosignals with Single Circuit Boards

Digitizing Human Motion via Bending Sensors toward Humanoid Robot

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