Self-Powered Analogue Smart Skin

Shi, Miaojing; Zhang, Jinxin; Chen, Haotian; Han, Mengdi; Shankaregowda, Smitha Ankanahalli; Su, Zongming; Meng, Bo; Cheng, Xiaoliang; Zhang, Haixia

doi:10.1021/acsnano.5b07074

Cited by 156 publications

(94 citation statements)

References 33 publications

(50 reference statements)

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“…For instance, researchers have set up human skin-based triboelectric nanogenerators84 and smart skins85 that can harvest the biomechanical energy to produce renewable electricity. Such technologies could power a bioelectric dressing that would stimulate the wound.…”

Section: Smart Materials Technology and Esmentioning

confidence: 99%

A current affair: electrotherapy in wound healing

Hunckler¹,

Mel²

2017

JMDH

111

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New developments in accelerating wound healing can have immense beneficial socioeconomic impact. The wound healing process is a highly orchestrated series of mechanisms where a multitude of cells and biological cascades are involved. The skin battery and current of injury mechanisms have become topics of interest for their influence in chronic wounds. Electrostimulation therapy of wounds has shown to be a promising treatment option with no-device-related adverse effects. This review presents an overview of the understanding and use of applied electrical current in various aspects of wound healing. Rapid clinical translation of the evolving understanding of biomolecular mechanisms underlying the effects of electrical simulation on wound healing would positively impact upon enhancing patient’s quality of life.

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Section: Smart Materials Technology and Esmentioning

confidence: 99%

A current affair: electrotherapy in wound healing

Hunckler¹,

Mel²

2017

JMDH

111

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“…With the rapid development of electronics and computer science, humanoid robots have been engaging in our daily lives since the early 21st century [1][2][3][4][5][6]. To enable humanoid robots to provide advanced services, using human skininspired artificial smart skin for robots to help them interact with users and perceive environmental stimuli has received increased attention in recent years [7][8][9][10]. Variety techniques have been proposed and demonstrated in the literature to enable robots to sense multi-dimensional physical changes, such as pressure [7][8] and temperature [9].…”

Section: Introductionmentioning

confidence: 99%

“…To enable humanoid robots to provide advanced services, using human skininspired artificial smart skin for robots to help them interact with users and perceive environmental stimuli has received increased attention in recent years [7][8][9][10]. Variety techniques have been proposed and demonstrated in the literature to enable robots to sense multi-dimensional physical changes, such as pressure [7][8] and temperature [9]. However, most of the reported works focus on single-dimensional sensing, such as force sensing, which could be picked up by the human skin and delivered to the brain for further processing.…”

Section: Introductionmentioning

confidence: 99%

“…However, most of the reported works focus on single-dimensional sensing, such as force sensing, which could be picked up by the human skin and delivered to the brain for further processing. To address this, layers of different functionalities are integrated for multidimensional sensing, e.g., force, and temperature sensing layers are stacked in [9]. However, this process increases front-end and circuitry complexity, as well as system power consumption and component costs (especially when a large area is required), thus limiting its successfully extensive use in commercial products.…”

Section: Introductionmentioning

confidence: 99%

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Multi-functional Smart Skin for Multi-dimensional Perception for Humanoid Robots

Dai¹,

Gao²

2020

Preprint

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Artificial smart skins capable of interacting with people and sensing environmental stimuli have become a research topic in humanoid robotic applications. However, previously reported architectures suffer difficulties in achieving multi-dimensional sensing in a simple structure with a low system cost. To address this issue, in this paper, an artificial smart skin constructed with polyimide/copper/polyvinylidene fluoride (PVDF) is presented for detecting 2D-position, proximity, dynamic force, and humidity via a smart combination of piezoelectric-and capacitive-effects. The proposed system achieves overall force and capacitive sensitivities of 0.051 N and 8.7 fF; the humidity measurements show a responsivity at 0.20%/RH% over a relative humidity range of 10%-90% RH. And a follow-up filtering algorithm is proposed to separate the stimuli associated with capacitance changes (position, proximity, and humidity). This simple-structured device supports multiple functions with its low system cost, thus advancing the field of robotics smart skins. Keywords-artificial smart skin; position and hover touch recognition; force detection and humidity sensingI.

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“…Energy-harvesting technology that uses the coupling effects of contact-electrification and electrostatic induction, called a triboelectric nanogenerator (TENG), has been considered a promising alternative for renewable and green energy applications, such as self-powered electronic devices, touch sensors, and artificial skins, due to its advantages of high output power, scalability, simple design, and cost-effective fabrication [25][26][27][28][29][30] . In addition, transparent TENGs using indium tin oxide (ITO) or graphene as electrodes have been achieved, which enable applications that require high transparency such as touch screens [31][32][33][34][35] .…”

Section: Introductionmentioning

confidence: 99%

Controlled fabrication of nanoscale wrinkle structure by fluorocarbon plasma for highly transparent triboelectric nanogenerator

Cheng

Miao

et al. 2017

Microsyst Nanoeng

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In this paper, we report a novel nanoscale wrinkle-structure fabrication process using fluorocarbon plasma on poly (dimethylsiloxane) (PDMS) and Solaris membranes. Wrinkles with wavelengths of hundreds of nanometers were obtained on these two materials, showing that the fabrication process was universally applicable. By varying the plasma-treating time, the wavelength of the wrinkle structure could be controlled. Highly transparent membranes with wrinkle patterns were obtained when the plasmatreating time was o 125 s. The transmittances of these membranes were 490% in the visible region, making it difficult to distinguish them from a flat membrane. The deposited fluorocarbon polymer also dramatically reduced the surface energy, which allowed us to replicate the wrinkle pattern with high precision onto other membranes without any surfactant coating. The combined advantages of high electron affinity and high transparency enabled the fabricated membrane to improve the performance of a triboelectric nanogenerator. This nanoscale, single-step, and universal wrinkle-pattern fabrication process, with the functionality of high transparency and ultra-low surface energy, shows an attractive potential for future applications in microand nanodevices, especially in transparent energy harvesters. INTRODUCTIONPatterned surface structures on the nano-or micrometer scale have a significant role in the properties of a material, including physical, mechanical, electrical, and optical 1 . The fabrication process for these patterns has been traditionally realized by photolithography, printing processes, embossing, or writing techniques, of which the relatively high cost and low throughput limit their application for producing complex topologies over large areas. Thereby, selfassembled patterns for large-area patterning, which generally employ physical-chemical or mechanical instabilities within a constrained system to form highly ordered structures, have attracted great attention for many years 2-7 . Among these methods, mechanically inducing a wrinkle structure on a bilayer system is especially suited to creating highly ordered microstructures across a large surface and features convenient fabrication and a tunable wavelength by adjusting the thickness of the stiff layer and the prestrain [8][9][10][11][12] . As a result, wrinkle structures have been used in various applications, such as smart adhesion, liquid/cell shaping, particle assembly, optical surfaces, flexible electronic devices, and energy harvesters [13][14][15][16][17][18][19][20] . To date, most studies involving wrinkling to create ordered structures rely on plasma or ultraviolet-ozonolysis (UVO) oxidation and metal deposition to create the stiff skin. Although these approaches are quite practical, the material properties of the substrate during oxidation can significantly alter the typical morphologies and even block the formation of the wrinkle structure (that is, the process does not have universality to different materials), whereas the deposition of the metal la...

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Self-Powered Analogue Smart Skin

Cited by 156 publications

References 33 publications

A current affair: electrotherapy in wound healing

A current affair: electrotherapy in wound healing

Multi-functional Smart Skin for Multi-dimensional Perception for Humanoid Robots

Controlled fabrication of nanoscale wrinkle structure by fluorocarbon plasma for highly transparent triboelectric nanogenerator

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