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AuthorAhmad Fuaad, Mariatul Rawdhah
AuthorHasan, Mohammed Nazibul
AuthorMuthalif, Asan G A
AuthorMohamed Ali, Mohamed Sultan
Available date2024-05-14T03:51:39Z
Publication Date2024
Publication NameSmart Materials and Structures
ResourceScopus
Identifierhttp://dx.doi.org/10.1088/1361-665X/ad1428
ISSN9641726
URIhttp://hdl.handle.net/10576/54914
AbstractThe development of a soft actuator with high displacement is crucial for the effective operation of micropumps, ensuring a high fluid pump rate. This study introduces an innovative approach by presenting the design and fabrication of a novel electrostatic-hydraulic coupled soft actuator for a micropump within a microfluidic system. This pioneering soft actuator, leveraging electrostatic-hydraulic coupling, showcases a unique solution to enhance the performance of micropumps. The versatility of such a soft actuator makes it particularly promising for biomedical applications. The actuator comprises dielectric fluid in an elastomeric shell and electrodes to form the out-of-plane fluid-amplified displacement. This displacement amplification was used to generate a pumping actuation in the micropump. The actuator was characterized in terms of dielectric fluid volume, electrode size, temporal response, and amplification displacement. The soft actuator showed a maximum amplified displacement of 0.51 mm at 10 kV of the applied voltage, but a higher voltage caused a dielectric breakdown. Moreover, the actuator demonstrated the ability to operate at frequencies of 0.25 Hz and 0.1 Hz. The results of the study indicate that the fabricated electrostatic-hydraulic coupled soft actuator is a dependable and effective method of actuation for a micropump in a microfluidic system. The experimental characterization of the micropump revealed a maximum flow rate of 2304 μl min−1.
SponsorThis work was supported by the Ministry of Higher Education Malaysia through Fundamental Research Grant Scheme (Grant No. FRGS/1/2023/TK07/UTM/02/11) and Universiti Teknologi Malaysia through UTM Fundamental Research Grant (UTMFR Grant No. Q.J130000.3823.22H55).
Languageen
PublisherInstitute of Physics
Subjectdielectric elastomer
microfluidic system
micropump
soft actuator
TitleElectrostatic-hydraulic coupled soft actuator for micropump application
TypeArticle
Issue Number1
Volume Number33
dc.accessType Abstract Only


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