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Micromachines, Volume 13, Issue 5

May 2022 - 172 articles

Cover Story: With the recent advancements in microfabrication, researchers have revisited magnetorheological micropump designs. In this study, Rubayet et al. propose a magnetorheological micropump featuring a duckbill valve. The proposed design can pump 2.45 µL of fluid during the first second and minimizes the backflow by nearly 7.5 times compared to a model without a valve. The reported model could potentially be used in a broad range of applications, such as an insulin dosing system for type 1 diabetic patients, artificial organs to transport blood, organ-on-chip applications, and so on. View this paper
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Articles (172)

  • Article
  • Open Access
5 Citations
3,000 Views
19 Pages

A Comparative Evaluation of Magnetorheological Micropump Designs

  • Sevki Cesmeci,
  • Rubayet Hassan and
  • Mahmoud Baniasadi

In this study, we assessed the performance characteristics of five different magnetorheological micropump designs, two of which were our proposed designs, while others were from the existing designs in the literature. Comparisons have been performed...

  • Article
  • Open Access
19 Citations
5,056 Views
9 Pages

A MEMS-Based High-Fineness Fiber-Optic Fabry–Perot Pressure Sensor for High-Temperature Application

  • Suwei Wang,
  • Jun Wang,
  • Wenhao Li,
  • Yangyang Liu,
  • Jiashun Li and
  • Pinggang Jia

In this paper, a high-fineness fiber-optic Fabry–Perot high-temperature pressure sensor, based on MEMS technology, is proposed and experimentally verified. The Faber–Perot cavity of the pressure sensor is formed by the anodic bonding of a...

  • Article
  • Open Access
13 Citations
3,107 Views
16 Pages

Effects of pH Values and H2O2 Concentrations on the Chemical Enhanced Shear Dilatancy Polishing of Tungsten

  • Liang Xu,
  • Lin Wang,
  • Hongyu Chen,
  • Xu Wang,
  • Fangyuan Chen,
  • Binghai Lyu,
  • Wei Hang,
  • Wenhong Zhao and
  • Julong Yuan

In order to obtain tungsten with great surface qualities and high polishing efficiency, a novel method of chemical enhanced shear dilatancy polishing (C-SDP) was proposed. The effects of pH values and H2O2 concentrations on the polishing performance...

  • Feature Paper
  • Article
  • Open Access
27 Citations
6,224 Views
16 Pages

The traditional single electromechanical conversion energy harvester can collect energy only in a single vibration direction. Moreover, it requires high environmental vibration frequency, and its output power is low. To solve these problems, a cross-...

  • Article
  • Open Access
2 Citations
2,615 Views
9 Pages

Recently, automated cell culture devices have become necessary for cell therapy applications. The maintenance of cell functions is critical for cell expansion. However, there are risks of losing these functions, owing to disturbances in the surroundi...

  • Article
  • Open Access
1 Citations
2,434 Views
10 Pages

Tactile sensation is a highly desired function in robotics. Furthermore, tactile sensor arrays are crucial sensing elements in pulse diagnosis instruments. This paper presents the fabrication of an integrated piezoresistive normal force sensor throug...

  • Article
  • Open Access
9 Citations
2,808 Views
16 Pages

Respiration monitoring is vital for human health assessment. Humidity sensing is a promising way to establish a relationship between human respiration and electrical signal. This paper presents a polyimide-based film bulk acoustic resonator (PI-FBAR)...

  • Article
  • Open Access
3 Citations
2,025 Views
21 Pages

Mold Size Effect in Microscale Laser Dynamic Flexible Bulging Assisted by Laser Pre-Shocking

  • Yijun Fang,
  • Pin Li,
  • Xijin Zhen,
  • Jindian Zhang and
  • Zongbao Shen

The size effect seriously affects the forming quality of micro-formed parts in the field of micro-forming. This paper focuses on the influence of the mold size effect in microscale laser dynamic flexible bulging (μLDFB). The experimental results i...

  • Article
  • Open Access
9 Citations
3,304 Views
14 Pages

Enhanced Spectral Broadening of Femtosecond Optical Pulses in Silicon Nanowires Integrated with 2D Graphene Oxide Films

  • Yuning Zhang,
  • Jiayang Wu,
  • Yunyi Yang,
  • Yang Qu,
  • Linnan Jia,
  • Baohua Jia and
  • David J. Moss

We experimentally demonstrate enhanced spectral broadening of femtosecond optical pulses after propagation through silicon-on-insulator (SOI) nanowire waveguides integrated with two-dimensional (2D) graphene oxide (GO) films. Owing to the strong mode...

  • Article
  • Open Access
4 Citations
3,758 Views
15 Pages

Microfluidics for High Pressure: Integration on GaAs Acoustic Biosensors with a Leakage-Free PDMS Based on Bonding Technology

  • Saber Hammami,
  • Aleksandr Oseev,
  • Sylwester Bargiel,
  • Rabah Zeggari,
  • Céline Elie-Caille and
  • Thérèse Leblois

Microfluidics integration of acoustic biosensors is an actively developing field. Despite significant progress in “passive” microfluidic technology, integration with microacoustic devices is still in its research state. The major challeng...

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Micromachines - ISSN 2072-666X