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      Design and Development of a Fully Printed Accelerometer with a Carbon Paste-Based Strain Gauge

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          Abstract

          In this paper, we present a fully printed accelerometer with a piezoresistive carbon paste-based strain gauge printed on its surface, which can be manufactured at low cost and with high efficiency. This accelerometer is composed of two parts: a sensor substrate made from high-temperature resin, which is printed by a 3D printer based on stereolithography apparatus (SLA), and a carbon paste-based strain gauge fabricated by screen-printing technology and by direct ink writing (DIW) technology for the purposes of comparison and optimization. First, the structural design, theoretical analysis, simulation analysis of the accelerometer, and analyses of the conductive mechanism and the piezoresistive mechanism of the carbon paste-based strain gauge were carried out. Then the proposed accelerometer was fabricated by a combination of different printing technologies and the curing conditions of the carbon paste were investigated. After that, the accelerometers with the screen-printed strain gauge and DIW strain gauge were characterized. The results show that the printing precision of the screen-printing process on the sensor substrate is higher than the DIW process, and both accelerometers can perform acceleration measurement. Also, this kind of accelerometer can be used in the field of measuring body motion. All these findings prove that 3D printing technology is a significant method for sensor fabrication and verification.

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          Embedded 3D printing of strain sensors within highly stretchable elastomers.

          A new method, embedded-3D printing (e-3DP), is reported for fabricating strain sensors within highly conformal and extensible elastomeric matrices. e-3DP allows soft sensors to be created in nearly arbitrary planar and 3D motifs in a highly programmable and seamless manner. Several embodiments are demonstrated and sensor performance is characterized. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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            Apparatus for Production of Three-Dimensional Objects by Stereolithography

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              3D-Printed Biosensor Arrays for Medical Diagnostics

              While the technology is relatively new, low-cost 3D printing has impacted many aspects of human life. 3D printers are being used as manufacturing tools for a wide variety of devices in a spectrum of applications ranging from diagnosis to implants to external prostheses. The ease of use, availability of 3D-design software and low cost has made 3D printing an accessible manufacturing and fabrication tool in many bioanalytical research laboratories. 3D printers can print materials with varying density, optical character, strength and chemical properties that provide the user with a vast array of strategic options. In this review, we focus on applications in biomedical diagnostics and how this revolutionary technique is facilitating the development of low-cost, sensitive, and often geometrically complex tools. 3D printing in the fabrication of microfluidics, supporting equipment, and optical and electronic components of diagnostic devices is presented. Emerging diagnostics systems using 3D bioprinting as a tool to incorporate living cells or biomaterials into 3D printing is also reviewed.
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                Author and article information

                Journal
                Sensors (Basel)
                Sensors (Basel)
                sensors
                Sensors (Basel, Switzerland)
                MDPI
                1424-8220
                16 June 2020
                June 2020
                : 20
                : 12
                : 3395
                Affiliations
                State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China; liumingjie@ 123456stu.xjtu.edu.cn (M.L.); zhaoyulong@ 123456xjtu.edu.cn (Y.Z.); imporeed@ 123456stu.xjtu.edu.cn (Y.S.); zhangdl666@ 123456stu.xjtu.edu.cn (D.Z.)
                Author notes
                [* ]Correspondence: zhq0919@ 123456xjtu.edu.cn ; Tel.: +86-029-8339-5334
                [†]

                Mingjie Liu and Qi Zhang contributed equally to this work.

                Author information
                https://orcid.org/0000-0003-1953-1648
                Article
                sensors-20-03395
                10.3390/s20123395
                7348881
                32560177
                da5e0b76-ddbe-426a-8529-310a9179691d
                © 2020 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 28 May 2020
                : 12 June 2020
                Categories
                Article

                Biomedical engineering
                fully printed accelerometer,stereolithography apparatus,screen printing,direct ink writing,low cost,high efficiency

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