Aqueous Media Electrostatic MEMS Sensors

Al‐Ghamdi, Majed; Saritas, Resul; Stewart, Katherine M. E.; Scott, Alison J.; Khater, Mahmoud; Alneamy, Ayman M.; Abdel-Aziz, Ahmad; Nafissi, Hamidreza; Abdel‐Rahman, Eihab; Penlidis, Alexander

doi:10.1109/transducers.2019.8808826

Cited by 6 publications

(6 citation statements)

References 14 publications

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“…The device shows Q-factor of 249 in water with cantilever connected with a phase-lock-loop interface circuit, and Q-factor of 2096 in air. However, some other researchers suggested that the electrothermal actuation mode is not perform well comparing with the electrostatic actuation mode [133].…”

Section: Mechanical Based Biosensors For Chemicals and Pesticidesmentioning

confidence: 97%

“…In the actuations section, there are MEMS sensors developed with electrothermal, electrostatic, and capacitive excitation method. However, by comparing the electrostatic to the electrothermal excitation at a certain frequency in air and DI water, they found that the electrostatic actuation increased by 60-70 times in water due to the material permittivity and the thermal conductivity in the thermal actuation [133], [134].…”

Section: Mechanical Based Biosensors For Chemicals and Pesticidesmentioning

confidence: 99%

“…Al-ghamdi et al [133] have successfully design and fabricated a novel electrostatic MEMS actuator with capacitive sensor for mercury acetate detection in deionized water environment. The sensor utilized polymeric sensing material to observe the mercury acetate dissolved in the water.…”

Section: Mechanical Based Biosensors For Chemicals and Pesticidesmentioning

confidence: 99%

“…However, the QCM devices are showing some disadvantages in detection small amount of pesticides and their structure is easy to fraction and broken [52]. From the various researches that have been implemented, this section can be concluded by, the suitable actuation mode for the chemical and biological detection sensors is the electrostatic and piezoelectric actuation modes, in the other hand the electrothermal actuation mode is characterized by some researchers to be less effective [133]. Furthermore, the sensing read out mode, it is concluded that the most recommended mode is the capacitive mode.…”

Section: Mechanical Based Biosensors For Chemicals and Pesticidesmentioning

confidence: 99%

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Recent Progress in the Development of Biosensors for Chemicals and Pesticides Detection

et al. 2020

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Chemicals and pesticides contamination in the food, drinking water, and environment ecosystem have become one of the most serious problems for human public health in the world due to their large amount used and wide application in the agriculture industry. Therefore, the detection and analysis of contamination in the food and drinking water by using techniques that are simple and suitable for fast screening are important. This review gives an overview of the last trends and recent advances biosensors for chemicals and pesticides detection based on electrochemical, optical and mechanical transducers strategies. Furthermore, the biosensors are classified according to their immobilized biorecognition elements including aptamer, antibodies, enzymes, and molecularly imprinted polymers. The implementation of nanomaterials such as graphene, carbon nanotubes, and metals nanoparticles are also emphasized and discussed in this review, these nanomaterials provides remarkable features to the biosensors such highly sensitive and accurate which allowing efficient pesticides detection. In addition to highlighting and summarizing various novel sensors, this review also provided some drawbacks, challenging, prospects as well as the current efforts to enhanced optical sensors. INDEX TERMS Biosensors, chemical detection, electrochemical transducer, mechanical transducer, optical transducer, pesticides detection.

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Section: Mechanical Based Biosensors For Chemicals and Pesticidesmentioning

confidence: 97%

Section: Mechanical Based Biosensors For Chemicals and Pesticidesmentioning

confidence: 99%

Section: Mechanical Based Biosensors For Chemicals and Pesticidesmentioning

confidence: 99%

Section: Mechanical Based Biosensors For Chemicals and Pesticidesmentioning

confidence: 99%

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Recent Progress in the Development of Biosensors for Chemicals and Pesticides Detection

et al. 2020

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“…This can be significantly more challenging than gaseous analytes, since the water effects must also be considered. As an example, work by Al‐Ghamdi et al [ 73 ] has led to the development of a polymeric sensing material (polyacrylamide) and the design of a functional electrostatic microelectromechanical systems (MEMS) sensor to identify mercury acetate in water. Thus, (collaborative) opportunities for the design of polymeric sensing materials continue to emerge; the potential applications are innumerable.…”

Section: Case Studies: Demonstrating the Design Frameworkmentioning

confidence: 99%

Design of polymeric materials: Experiences and prescriptions

Scott

Penlidis

2020

Can J Chem Eng

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As process engineering has matured, research interest has shifted towards polymer product quality. In the past 20 years or so, the shift has progressed even further, as interest in polymer product quality has morphed into polymer product design. Product design is intended to be a targeted pursuit of optimal conditions that will yield polymers with desirable properties for a specific application. This can be achieved by following a systematic design framework that employs sequential, iterative steps informed by prior knowledge and experience. This overview provides some background information regarding the

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