Liquid metal E-tattoo

Gao, Shangce; Cui, Zong Jie; Wang, Xuelin; Sun, Xuyang

doi:10.1007/s11431-022-2301-0

Cited by 7 publications

(2 citation statements)

References 171 publications

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“…The growing demand for flexible electronics in recent years has attracted tremendous attention from worldwide researchers, − and led to an increase in applications in the fields of wearable devices, , e-skins, , flexible display, sensing, etc. Currently, there are various technologies developed for manufacturing flexible electronics, such as screen printing, inkjet printing, photolithography, three-dimensional (3D) printing, laser-assisted printing, etc.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Transfer Printing of Liquid Metals and Allied Inks for Rapid Fabrication of Multifunctional Soft Electronics

Zhou,

Yu,

et al. 2024

ACS Appl. Mater. Interfaces

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The newly emerging liquid metal flexible electronics are gaining increasing applications over the world due to their outstanding adaptability and printability. Here, we proposed a generalized purpose thermo-activated hybrid transfer printing method for the rapid fabrication of multifunctional soft electronics, which can significantly reduce the difficulty facing existing technologies. This printing involves two delivery and deposition processes of liquid metals and the allied inks (toners) based on their adhesion selection mechanisms. Through developing office supplies, the laser printer could directly print toner masks on soft substrates, such as polydimethylsiloxane film. The heating plate was applied to remove the toner sacrificial mask after rolling liquid metal inks, resulting in retaining the liquid metal circuits on the target substrate. For illustration, diverse materials and inks are adapted to the strategy of constructing flexible electronics. Particularly, colorful circuits, flexible heaters, transparent circuitry, and soft programmable light-emitting diode array displays with multilayer circuits have been fabricated and tested. This general and easily accessible method allows for the rapid acquisition of user-designed soft electronics and is expected to promote the widespread use of flexible electronics in e-skin, sensing, displays, etc.

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Section: Introductionmentioning

confidence: 99%

Hybrid Transfer Printing of Liquid Metals and Allied Inks for Rapid Fabrication of Multifunctional Soft Electronics

Zhou,

Yu,

et al. 2024

ACS Appl. Mater. Interfaces

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“…LMs are now extensively used in biomedical applications owing to their excellent electrical, thermal, mechanical, and biological properties [2][3][4] . In the case of conventional biomaterials, such as rigid metals, ceramics, and silicon and their complexes, it is difficult to match their elastic moduli with those of human body tissues [5] . Unlike this, LMs appear in fluid at room temperature and can, thus, easily be incorporated into various soft materials or even directly printed on the biological skin to work as the electronic tattoo (E-tattoo), which allows the quick fabrication of various bioelectronic devices [6] .…”

Section: Introductionmentioning

confidence: 99%

Liquid metal neuro-electrical interface

Zhang,

Liu,

Tang

et al. 2024

Soft Sci

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Liquid metal (LM), an emerging functional material, plays increasing roles in biomedical and healthcare areas. It has particular values in neural interfaces as it combines high conductivity, flowability, and biocompatibility properties. Neuro-electrical interfaces (NEIs) are effective tools to provide a bridge between the nervous system and the outside world. The main target of developing neural interfaces is to help disabled people repair damaged nerves and enhance human capacity above normal ability. This article systematically summarizes LM-based neural interface technologies, including neural electrodes for electrical signal acquisition and administration of electrical stimulation and nerve guidance conduits for neural connectivity and functional reconstruction. The discussion begins with an overview of the fundamental properties associated with LM materials involved in the field of neural interface applications. The fabrication methods of LM-based neuro-electrodes and conduits are then introduced, and the current development status of LM-based neuro-electrodes and conduits is elaborated. Finally, the prospects and possible challenges of LM-based neural interfaces are outlined.

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Phase Transition Liquid Metal Enabled Emerging Biomedical Technologies and Applications

Gao,

Yang,

Falchevskaya

et al. 2023

Advanced Science

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Phase change materials that can absorb or release large amounts of heat during phase transition, play a critical role in many important processes, including heat dissipation, thermal energy storage, and solar energy utilization. In general, phase change materials are usually encapsulated in passive modules to provide assurance for energy management. The shape and mechanical changes of these materials are greatly ignored. An emerging class of phase change materials, liquid metals (LMs) have attracted significant interest beyond thermal management, including in transformable robots, flexible electronics, soft actuators, and biomedicine. Interestingly, the melting point of LM is highly tunable around body temperature, allowing it to experience considerable stiffness change when interacting with human organisms during solid–liquid change, which brings about novel phenomena, applied technologies, and therapeutic methods, such as mechanical destruction of tumors, neural electrode implantation technique, and embolization therapy. This review focuses on the technology, regulation, and application of the phase change process along with diverse changes of LM to facilitate emerging biomedical applications based on the influences of mechanical stiffness change and versatile regulation strategies. Typical applications will also be categorized and summarized. Lastly, the advantages and challenges of using the unique and reversible process for biomedicine will be discussed.

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Liquid metal E-tattoo

Cited by 7 publications

References 171 publications

Hybrid Transfer Printing of Liquid Metals and Allied Inks for Rapid Fabrication of Multifunctional Soft Electronics

Hybrid Transfer Printing of Liquid Metals and Allied Inks for Rapid Fabrication of Multifunctional Soft Electronics

Liquid metal neuro-electrical interface

Phase Transition Liquid Metal Enabled Emerging Biomedical Technologies and Applications

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