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Micromachines, Volume 12, Issue 2

2021 February - 128 articles

Cover Story: The worldwide spread of COVID-19 has forced us to adapt to a new way of life made of social distancing, avoidance of physical contact, and temperature checks before entering public places, to successfully limit the virus circulation. The role of technology has been fundamental to support the required changes to our lives: thermal sensors, in particular, are especially suited to address the needs arisen during the pandemic. They are, in fact, very versatile devices which allow performing contactless human body temperature measurements, presence detection and people counting, and automation of appliances and systems, thus avoiding the need to touch them. This paper reviews the theory and different types of thermal detectors, while focusing on their possible employment for COVID-19-related applications. View this paper.
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Articles (128)

  • Article
  • Open Access
16 Citations
4,172 Views
23 Pages

Homogeneous Freezing of Water Using Microfluidics

  • Mark D. Tarn,
  • Sebastien N. F. Sikora,
  • Grace C. E. Porter,
  • Jung-uk Shim and
  • Benjamin J. Murray

23 February 2021

The homogeneous freezing of water is important in the formation of ice in clouds, but there remains a great deal of variability in the representation of the homogeneous freezing of water in the literature. The development of new instrumentation, such...

  • Article
  • Open Access
6 Citations
2,766 Views
12 Pages

Numerical Analysis of Thermophoresis of a Charged Spheroidal Colloid in Aqueous Media

  • Yi Zhou,
  • Yang Yang,
  • Changxing Zhu,
  • Mingyuan Yang and
  • Yi Hu

23 February 2021

Thermophoresis of charged colloids in aqueous media has wide applications in biology. Most existing studies of thermophoresis focused on spherical particles, but biological compounds are usually non-spherical. The present paper reports a numerical an...

  • Article
  • Open Access
21 Citations
4,149 Views
13 Pages

23 February 2021

In the present research, an iterative numerical model is proposed to investigate the nanosecond pulsed laser ablation (PLA) mechanism of the DD6 single-crystal superalloy. In the numerical model, two subroutines are introduced to trace the moving bou...

  • Article
  • Open Access
2 Citations
2,998 Views
14 Pages

High-Order Fiber Mode Beam Parameter Optimization for Transport and Rotation of Single Cells

  • Zihao Shan,
  • Shunnan Yao,
  • Enfan Zhang,
  • Dun Pi,
  • Wen Cao,
  • Feng Lin,
  • Zhen Cai and
  • Xingkun Wu

23 February 2021

Optical tweezers are becoming increasingly important in biomedical applications for the trapping, propelling, binding, and controlled rotation of biological particles. These capabilities enable applications such as cell surgery, microinjections, orga...

  • Article
  • Open Access
10 Citations
5,018 Views
15 Pages

Synthesis of Printable Polyvinyl Alcohol for Aerosol Jet and Inkjet Printing Technology

  • Mahmuda Akter Monne,
  • Chandan Qumar Howlader,
  • Bhagyashree Mishra and
  • Maggie Yihong Chen

22 February 2021

Polyvinyl Alcohol (PVA) is a promising polymer due to its high solubility with water, availability in low molecular weight, having short polymer chain, and cost-effectiveness in processing. Printed technology is gaining popularity to utilize processi...

  • Article
  • Open Access
13 Citations
4,770 Views
10 Pages

Design and Fabrication of a MEMS Electromagnetic Swing-Type Actuator for Optical Switch

  • Shuhai Jia,
  • Jun Peng,
  • Jiaming Bian,
  • Shuo Zhang,
  • Shunjian Xu and
  • Bao Zhang

22 February 2021

A microelectromechanical systems system (MEMS) electromagnetic swing-type actuator is proposed for an optical fiber switch in this paper. The actuator has a compact size of 5.1 × 5.1 × 5.3 mm3, consisting of two stators, a swing disc (rotator), a rot...

  • Review
  • Open Access
28 Citations
6,842 Views
22 Pages

The Energy Conversion behind Micro-and Nanomotors

  • Yingmeng Wang,
  • Yingfeng Tu and
  • Fei Peng

22 February 2021

Inspired by the autonomously moving organisms in nature, artificially synthesized micro-nano-scale power devices, also called micro-and nanomotors, are proposed. These micro-and nanomotors that can self-propel have been used for biological sensing, e...

  • Review
  • Open Access
18 Citations
6,051 Views
14 Pages

Potential of Drug Efficacy Evaluation in Lung and Kidney Cancer Models Using Organ-on-a-Chip Technology

  • Seong-Hye Hwang,
  • Sangchul Lee,
  • Jee Yoon Park,
  • Jessie Sungyun Jeon,
  • Young-Jae Cho and
  • Sejoong Kim

21 February 2021

Organ-on-a-chip (OoC) is an exponential technology with the potential to revolutionize disease, toxicology research, and drug discovery. Recent advances in OoC could be utilized for drug screening in disease models to evaluate the efficacy of new the...

  • Article
  • Open Access
23 Citations
3,692 Views
12 Pages

21 February 2021

In this study, a preparation method for the high-temperature pressure sensor based on the piezoresistive effect of p-type SiC is presented. The varistor with a positive trapezoidal shape was designed and etched innovatively to improve the contact sta...

  • Article
  • Open Access
7 Citations
2,978 Views
14 Pages

On-Chip Micro Mixer Driven by Elastic Wall with Virtual Actuator

  • Toshio Takayama,
  • Makoto Kaneko and
  • Chia-Hung Dylan Tsai

21 February 2021

In this paper, we propose an on-chip micromixer driven by an elastic wall with a virtual actuator. The on-chip micro mixer is composed of a circular chamber surrounded by a ring-shaped channel under isolation with an elastic wall. When vibrational pr...

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Micromachines - ISSN 2072-666X