DC-contact radio-frequency microelectromechanical system symmetric toggle switch on a borofloat substrate

Micro & nano letters

article

Ling Li¹  Zhihao Hou²  Chenxu Zhao¹  Zewen Liu¹ 

[1] Institute of Microelectronics, Tsinghua University;Nanjing Electronic Devices Institute

关键词: contact resistance;    microswitches;    microwave switches;    stiction;    DC-contact radiofrequency microelectromechanical system;    symmetric toggle switch;    borofloat substrate;    broadband power applications;    lever principle;    switching structure;    restoring force;    push electrodes;    push mechanism;    isolation;    down-state stiction;    power-handling capability;    actuated voltage;    contact resistance;    pull in voltage;    insertion loss;    substrate loss;    Boroloat glass substrate;    RF measurement;    incident RF signal power;    X band;    voltage 33.4 V;    voltage 60 V;    voltage 30 V;   

DOI  :  10.1049/mnl.2013.0044

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Indonesia has been fighting the COVID-19 pandemic since the beginning of March 2020, and it doesn’t look that the situation is getting better any soon. Besides the country’s current strategies to minimize the rising mortality rate, a novel therapeutic intervention is required. After a thorough search in several databases, we found stem cells to be a likely candidate. Regardless of the general use of stem cells, studies showed positive results regarding the efficacy of using these in lung injuries. Especially, mesenchymal stem cells (MSCs) are known for their easy accessibility and their diverse mechanisms of action, including MSCs immunomodulatory antiviral effect, and its ability to improve lung function. Moreover, some researches perceived these components to be applicable in COVID-19 patients with end stage acute respiratory distress syndrome (ARDS). While randomized clinical trials are still in progress, many case reports show MSCs to be an advantageous alternative to suppress the cytokine storm and help regulate the immune system. This review summarizes the common functions of MSCs and highlights its therapeutic assets to fully tackle this global pandemic.

【 授权许可】

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