Micro and Nano Systems Letters

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Nonenzymatic coated screen-printed electrode for electrochemical determination of acetylcholine
Micro and Nano Systems Letters - Tập 6 - Trang 1-7 - 2018
Sayed Zia Mohammadi, Hadi Beitollahi, Somayeh Tajik
In the present study, a screen-printed electrode based-sensor with electrochemical detection was developed for rapid and sensitive determination of acetylcholine. At first, the screen-printed carbon electrode was modified by using a magnetic core shell and then was used for voltammetric determination of acetylcholine in ampoule, serum and urine samples. The electrochemical behaviour of acetylcholi...... hiện toàn bộ
Biomimetic patterned surfaces for controllable friction in micro- and nanoscale devices
Micro and Nano Systems Letters - Tập 1 Số 1 - Trang 6 - 2013
R. Arvind Singh, Kune Y. Suh
MEMS particle sensor based on resonant frequency shifting
Micro and Nano Systems Letters - Tập 8 - Trang 1-6 - 2020
Ji-Seob Choi, Woo-Tae Park
Recently, as the concentration of fine dust in the atmosphere has increased due to an increase in the use of fossil fuel power plants, automobiles, and factories, it has been increasingly important to measure fine dust in the atmosphere. This is because exposure to fine dust is closely related to the incidence of respiratory and cardiovascular diseases and eventually affects mortality. In this pap...... hiện toàn bộ
Optimization of deep reactive ion etching for microscale silicon hole arrays with high aspect ratio
Micro and Nano Systems Letters - Tập 10 - Trang 1-7 - 2022
Taeyeong Kim, Jungchul Lee
During deep reactive ion etching (DRIE), microscale etch masks with small opening such as trenches or holes suffer from limited aspect ratio because diffusion of reactive ions and free radicals become progressively difficult as the number of DRIE cycle increases. For this reason, high aspect ratio structures of microscale trenches or holes are not readily available with standard DRIE recipes and m...... hiện toàn bộ
Enhanced etching characteristics of Si{100} in NaOH-based two-component solution
Micro and Nano Systems Letters - Tập 10 - Trang 1-8 - 2022
V. Swarnalatha, S. Purohit, P. Pal, R. K. Sharma
Silicon wet bulk micromachining is the most widely used technique for the fabrication of diverse microstructures such as cantilevers, cavities, etc. in laboratory as well as in industry for micro-electromechanical system (MEMS) application. Although, increasing the throughput remains inevitable, and can be done by increasing the etching rate. Furthermore, freestanding structure release time can be...... hiện toàn bộ
Effects of low temperature on electrophysiology and mechanophysiology of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs)
Micro and Nano Systems Letters - Tập 9 - Trang 1-7 - 2021
Pooja P. Kanade, Nomin-Erdene Oyunbaatar, Dong-Weon Lee
Studies related to low temperature and their effect on cardiomyocytes are essential as hypothermia—like situations have been known to induce arrhythmia or ventricular fibrillation. Till date, several studies have been carried out on animals and their electrophysiological responses have been studied in the form of action potential. However, for a complete assessment of the effect of low temperature...... hiện toàn bộ
Development of an amperometric sensor for epinephrine determination using an Azure A/silver nanocluster modified electrode
Micro and Nano Systems Letters - Tập 11 Số 1
C. Priya, S. Anuja, R. Suresh Babu, S. Sriman Narayanan
AbstractA novel electrochemical sensor was developed for the detection of Epinephrine (EP) utilizing Azure A (AzA), a phenothiazine dye, and citrate-capped silver nanoparticles. The interaction between Azure A and silver nanoparticles facilitated the formation of AzA/silver nanoclusters through a self-assembled approach. The morphological analysis of AzA/silver nan...... hiện toàn bộ
Analysis of liquid-type proof mass under oscillating conditions
Micro and Nano Systems Letters - Tập 8 - Trang 1-7 - 2020
Dong-Joon Won, Sangmin Lee, Joonwon Kim
In this study, the spring constant of an accelerometer with a liquid-type proof mass was analyzed. Unlike a general solid-type microelectromechanical system accelerometer, the Laplace pressure is considered a restoring force in the analyzed accelerometer. Using a base excitation mathematical model, the sensor output could be estimated for a specific spring constant. Although the estimated sensor o...... hiện toàn bộ
Simple refractometry using optical path separation via multiple pinholes
Micro and Nano Systems Letters - Tập 5 - Trang 1-6 - 2017
Sang Youl Yoon, Ji-chul Hyun, Sung Yang
We herein report on a simple and novel method of refractometry that uses a micro image defocusing technique. This simple method makes use of a three-pinhole aperture attached to a microscopic optical system. In order to develop our proposed method, an analytical formula was derived from the principles of optical modelling, taking into consideration imaging optics, and was verified experimentally. ...... hiện toàn bộ
Synthesis of metallic aluminum particles by electrolysis in aqueous solution
Micro and Nano Systems Letters - - 2021
Takefumi Hosoya, Tadashi Yonezawa, Noriko Yamauchi, Kouichi Nakashima, Yoshio Kobayashi
AbstractThe present work proposes a method for fabricating metallic Al particles in aqueous solution. An aqueous colloidal solution was prepared from an aqueous aluminum nitrate nonahydrate solution by electrolysis using metallic Al plates as the anode and cathode under ultrasonic irradiation in water at 25–45 °C. The sizes of the particles in the colloidal solutio...... hiện toàn bộ
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