scholarly journals Printed Transformable Liquid-Metal Metamaterials and Their Application in Biomedical Sensing

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6329
Author(s):  
Yi Ren ◽  
Minghui Duan ◽  
Rui Guo ◽  
Jing Liu
Keyword(s):  
Electrical Conductivity ◽  
Liquid Metal ◽  
Printed Electronics ◽  
Magnetic Characteristics ◽  
Future Outlook ◽  
Biomedical Sensing ◽  
High Flexibility ◽  
Simulated Analysis ◽  
Further Development ◽  
Electromagnetic Metamaterials

Metamaterial is becoming increasingly important owing to its unique physical properties and breakthrough applications. So far, most metamaterials that have been developed are made of rigid materials and structures, which may restrict their practical adaptation performances. Recently, with the further development of liquid metal, some efforts have explored metamaterials based on such tunable electronic inks. Liquid metal has high flexibility and good electrical conductivity, which provides more possibilities for transformable metamaterials. Here, we developed a new flexible liquid-metal metamaterial that is highly reconfigurable and could significantly extend the working limit facing current devices. The printed electronics method was adopted to fabricate artificial units and then construct various potential transformable metamaterials. Based on metamaterial theory and printing technology, typical structured flexible liquid-metal electromagnetic metamaterials were designed and fabricated. The electronic and magnetic characteristics of the liquid-metal-based electromagnetic metamaterials were evaluated through simulated analysis and experimental measurement. Particularly, the potential of liquid-metal metamaterials in biomedical sensing was investigated. Further, the future outlook of liquid-metal metamaterials and their application in diverse categories were prospected.

scholarly journals Transport Processes in Dense Stellar Plasmas

1994 ◽  
Vol 147 ◽  
pp. 394-419
Author(s):  
Naoki Itoh
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Liquid Metal ◽  
Neutron Stars ◽  
Transport Properties ◽  
Dense Matter ◽  
Transport Processes ◽  
Crystalline Lattice ◽  
Metal Phase ◽  
Current Status

AbstractTransport processes in dense stellar plasmas which are relevant to the interiors of white dwarfs and neutron stars are reviewed. The emphasis is placed on the accuracy of the numerical results. In this review we report on the electrical conductivity and the thermal conductivity of dense matter. The methods of the calculations are different for the liquid metal phase and the crystalline lattice phase. We will broadly review the current status of the calculations of the transport properties of dense matter, and try to give the best instructions available at the present time to the readers.

Colorful liquid metal printed electronics

2017 ◽  
Vol 61 (1) ◽  
pp. 110-116 ◽  
Author(s):  
ShuTing Liang ◽  
Jing Liu
Keyword(s):  
Liquid Metal ◽  
Printed Electronics

Nanocellulose-based reusable liquid metal printed electronics fabricated by evaporation-induced transfer printing

2021 ◽  
Vol 61 ◽  
pp. 132-137
Author(s):  
Yiru Mao ◽  
Yixiang Wu ◽  
Pengju Zhang ◽  
Yang Yu ◽  
Zhizhu He ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Printed Electronics ◽  
Transfer Printing

Nanotube-Enhanced Aerosol-Jet Printed Electronics for Embedded Sensing of Composite Structural Health

2012 ◽  
Vol 1407 ◽  
Author(s):  
Da Zhao ◽  
Tao Liu ◽  
Mei Zhang ◽  
Jen-Ming Chen ◽  
Ben Wang
Keyword(s):  
Electrical Conductivity ◽  
Printed Electronics ◽  
Electronic Materials ◽  
Mechanical Stirring ◽  
Embedded Sensing ◽  
Aerosol Printing ◽  
Printing Technique ◽  
Printing System ◽  
Concentration Threshold ◽  
Planar Substrates

ABSTRACTInnovative printing technology enables fine feature deposition (below 10μm) of electronic materials onto low-temperature, non-planar substrates without masks. This could be a promising technology to meet the requirements of present and future microelectronic systems. Silver nanoparticles (NP) ink is widely used for printed electronics; however, its electrical conductivity is low compared to bulk materials. In order to improve the electrical conductivity of printed tracks for the aerosol printing technique, we developed a novel carbon nanotubes (CNTs)/silver NP ink by mechanical stirring and sonication. The produced sample inks with different concentration of CNTs that were printed with Aerosol Jet® printing system. We found that the CNTs bridged the defects in some printed silver lines, thereby lowering the electrical resistivity by 38%. However, no further improvements were observed with a higher CNT concentration in the silver NP ink samples. We hypothesize that CNT bridges connects the defects thus decreasing the resistivity of printed silver lines when CNT concentration is under the percolation level. However, when it is above a concentration threshold, the resistivity of printed silver lines stops decreasing and even increases because of Schottky barrier effect.

Development of Sodium Two-Phase Flow Model for KALIMER Core Analysis

2002 ◽  
Author(s):  
W. P. Chang ◽  
Dohee Hahn
Keyword(s):  
Liquid Metal ◽  
Single Phase ◽  
System Analysis ◽  
Flow Model ◽  
Two Phase Flow ◽  
Water System ◽  
Phase Flow ◽  
Two Phase ◽  
Applicable Range ◽  
Further Development

An algorithm for sodium boiling is developed in order to extend the applicability of SSC-K, which is a main system analysis code for the KALIMER (Korea Advanced LIquid MEtal Reactor) conceptual design. As the capability of the current SSC-K version is limited to simulation of only a single-phase sodium flow, its applicable range should not be enough to assess the fuel integrity under some of HCDA (Hypothetical Core Disruptive Accident) initiating events where sodium boiling is anticipated. The two-phase flow model similar to that used for the light water system is known to be no more effective directly to liquid metal reactors, because the phenomena observed between two reactor coolant systems are definitely different. The developing algorithm is based on a multiple-bubble slug ejection model, which allows a finite number of bubbles in a channel at any time. The present work is a continuous effort following the former study to confirm a qualitative acceptance on the model. Since the model has been applied only to the active fuel region in the former study, a part of its qualification seems to have already been demonstrated. For its application to the whole KALIMER core channel, however, the model needs to be examined the applicability to the fuel regions other than the active fuel. The present study primarily focuses on that point. In a result, although the model may be improved in a sense through the present study over the previous modeling, a clear limitation is also confirmed with the validity of the model. The further development, therefore, is required for this model to achieve its goal by resolving such limitations.

scholarly journals Electrical stimulation towards melanoma therapy via liquid metal printed electronics on skin

2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Jun Li ◽  
Cangran Guo ◽  
Zhongshuai Wang ◽  
Kai Gao ◽  
Xudong Shi ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Liquid Metal ◽  
Printed Electronics ◽  
Melanoma Therapy

Liquid Metal Printing for Manufacturing Large-Scale Flexible Electronic Circuits

2014 ◽  
Author(s):  
Yi Zheng ◽  
Zhi-Zhu He ◽  
Jun Yang ◽  
Jing Liu
Keyword(s):  
Liquid Metal ◽  
Large Scale ◽  
High Efficiency ◽  
Printed Electronics ◽  
Low Cost ◽  
Treatment Temperature ◽  
Consumer Electronics ◽  
Plastic Substrate ◽  
Electronic Circuits ◽  
Large Area

The advancement of printed electronics technology has significantly facilitated the development of electronic engineering. However, so far there still remain big barriers to impede the currently available printing technologies from being extensively used. Many of the difficulties came from the factors like: complicated ink-configurations, high post-treatment temperature, poor conductivity in room temperature and extremely high cost and time consuming fabrication process. From an alternative strategy, our recently invented desktop liquid metal printer offered a flexible way to better address the above deficiencies. Through modifying the system developed in the authors’ lab, here we demonstrated the feasibility of the method in quickly and reliably printing out various large area electronic circuits. Particularly, the liquid metal ink made of GaIn24.5 alloy, with a high electrical resistivity of 2.98×10−7 Ω·m, can be rapidly printed on polyvinyl chloride (PVC) substrate with maximum sizes spanning from centimeter size to meter large. Most important of all, all these manufactures were achieved at an extremely low cost level which clearly shows the ubiquitous value of the liquid metal printer. To evaluate the working performance of the present electronics fabrication method, the electrical resistance and wire width of the printed circuits were investigated under multiple overprinting cycles. For practical illustration purpose, LED lighting conductive patterns which can serve as a functional electronic decoration art were fabricated on the flexible plastic substrate. The present work sets up an example for directly making large-scale ending consumer electronics via a high-efficiency and low-cost way.

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