A polymer membrane electrolysis micropump powered by a compact wireless power transmission system

• Published in: Journal of mechanical science and technology Vol. 35; no. 2; pp. 697 - 706
• Main Authors: Dong, Chao-Wei, Tran, Le-Giang, Park, Woo-Tae
• Format: Journal Article
• Language: English
• Published: Seoul Korean Society of Mechanical Engineers 01-02-2021; Springer Nature B.V; 대한기계학회
• Subjects: Age related diseases; Control; Diabetic retinopathy; Dynamical Systems; Electrolysis; Engineering; Eye diseases; Impedance matching; Industrial and Production Engineering; Intraocular pressure; Mechanical Engineering; Membranes; Micropumps; Original Article; Polydimethylsiloxane; Vibration; Wireless power transmission; 기계공학; Bio-MEMS; Electrolysis micropump; Drug delivery; Wireless power transfer
• ISSN: 1738-494X; 1976-3824
• DOI: 10.1007/s12206-021-0130-2

In this study, a polydimethylsiloxane (PDMS) membrane electrolysis micropump activated by a miniaturized wireless power transfer (WPT) system is introduced. The micropump system has total dimensions of 20 × 14 × 8.2 mm
3
. Combined with a compact WPT system, the micropump enables the delivery of drugs to the treatment area on demand. The WPT system consists of an impedance matching network and a two-stage voltage multiplier. Voltages ranging from 0.8 V to 1.3 V can be generated at different operating distance of 8 cm to 20 cm away from the RF source. The micropump is capable of delivering liquid continuously over a flow ranging from 0.11 µL/min to 4.84 µL/min. This micropump demonstrates a maximum cumulative released drug volume of up to 100.8 µL and was able to produce a pressure that is higher than the intraocular pressure. The results can be used for the study of age-related macular degeneration, diabetic retinopathy, and other ophthalmic diseases.