scholarly journals Manufacturing of Microfluidic Sensors Utilizing 3D Printing Technologies: A Production System

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Danial Khorsandi ◽  
Mehrab Nodehi ◽  
Tayyab Waqar ◽  
Majid Shabani ◽  
Behnam Kamare ◽  
...  

3D integrated microfluid devices are a group of engineered microelectromechanical systems (MEMS) whereby the feature size and operating range of the components are on a microscale. These devices or systems have the ability to detect, control, activate, and create macroscale effects. On this basis, microfluidic chips are systems that enable microliters and smaller volumes of fluids to be controlled and moved within microscale-sized (one-millionth of a meter) channels. While this small scale can be compared to microfluid chips of larger applications, such as pipes or plumbing practices, their small size is commonly useful in controlling and monitoring the flow of fluid. Through such applications, microfluidic chip technology has become a popular tool for analysis in biochemistry and bioengineering with their most recent uses for artificial organ production. For this purpose, microfluidic chips can be instantly controlled by the human body, such as pulse, blood flow, blood pressure, and transmitting data such as location and the programmed agents. Despite its vast uses, the production of microfluidic chips has been mostly dependent upon conventional practices that are costly and often time consuming. More recently, however, 3D printing technology has been incorporated in rapidly prototyping microfluid chips at microscale for major uses. This state-of-the-art review highlights the recent advancements in the field of 3D printing technology for the rapid fabrication, and therefore mass production, of the microfluid chips.

2020 ◽  
Vol 4 (2) ◽  
pp. 73-81 ◽  
Author(s):  
Hemza Boumaraf ◽  
Mehmet İnceoğlu

3D printing technology offers the chance to produce very small-scale, complex forms that could help to improve educational materials for architectural design. In this age of technological advances, architectural education needs to integrate modern teaching methods that could enhance students’ visual perception. This research thus examined the impact of computational design modeling and 3D printing technology on the spatial cognition of architecture students. It starts with the premise that the use of the 3D printed models will support design logic and improve the deep understanding of spatial perception among students. Thirty architecture students were asked about a designed project realized for the purpose of this study. They were presented both a project designed via computer modeling software and a printed model of the same project. The outcomes indicate that the use of 3D printing gave better results in the development of students’ spatial abilities. The findings also confirm that adopting this technology in the development of teaching tools will enhance students’ spatial perception and extend beyond the seamless materialization of the digital model which can continuously inform design ideation through emerging perception qualities.


Author(s):  
S. V. Kharalgin ◽  
G. V. Kulikov ◽  
A. B. Kotelnikov ◽  
M. V. Snastin ◽  
E. M. Dobychina

The technology of additive 3D printing is widely used in various branches of science and industry. The purpose of the research presented in the article is to evaluate and study the possibilities of 3D printing technology applied to the manufacture of microwave devices and to compare the characteristics of the devices obtained with the characteristics used in the electrodynamic model. Printing metal parts is an overly expensive process in small-scale production, both in terms of the cost of equipment and in relation to the materials used. In this work, parts for microwave devices were made of plastic with the aim of cheapening. Relatively cheap polymers used in 3D printing are dielectrics. Therefore, to limit the propagation of an electromagnetic wave in all directions it was necessary to create a conductive layer on the surface of printed models. The article: identifies the FFF print parameters that affect to the maximum extent the propagation of an electromagnetic wave; describes the process and problems encountered when printing and galvanizing parts; discusses the steps of modeling devices and measuring their parameters. The characteristics of microwave devices made by 3D printing technology were investigated. An assessment of the possibilities of manufacturing antennas and coaxial-waveguide transitions using this technology was carried out. To implement the conductive layer on the surface of the models, the method of galvanization was used. The adhesion properties of the obtained metallic coatings were investigated. The results of electromagnetic modeling are given. The parameters that affect to the maximum extent the quality of the implemented devices were determined. Laboratory measurements of the characteristics of produced devices were conducted. The simulation results of the examined devices are in good agreement with the experimental characteristics of the made models using 3D printing technology. A complete production cycle of microwave devices was carried out: design, simulation, sample production, and validation of characteristics. Prospects for the further development of the described technology include a variation of the types of plastics used as a substrate, the application of finishing decorative and functional coatings, an improvement in the adhesion properties of the applied copper layer with the substrate.


Author(s):  
Mohd Nazri Ahmad ◽  
Ahmad Afiq Tarmeze ◽  
Amir Hamzah Abdul Rasib

2020 ◽  
Vol 14 (7) ◽  
pp. 470
Author(s):  
Jarosław Kotliński ◽  
Karol Osowski ◽  
Zbigniew Kęsy ◽  
Andrzej Kęsy

2021 ◽  
pp. 2102649
Author(s):  
Sourav Chaule ◽  
Jongha Hwang ◽  
Seong‐Ji Ha ◽  
Jihun Kang ◽  
Jong‐Chul Yoon ◽  
...  

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