Details

Autor(en) / Beteiligte

• Huang, An
• Connacher, William
• Stambaugh, Mark
• Zhang, Naiqing
• Zhang, Shuai
• Mei, Jiyang
• Jain, Aditi
• Alluri, Sravya
• Leung, Vincent
• Rajapaksa, Anushi E
• Friend, James

Titel

Practical microcircuits for handheld acoustofluidics

Ist Teil von

• Lab on a chip, 2021-04, Vol.21 (7), p.1352-1363

Ort / Verlag

England: Royal Society of Chemistry

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Acoustofluidics has promised to enable lab-on-a-chip and point-of-care devices in ways difficult to achieve using other methods. Piezoelectric ultrasonic transducers-as small as the chips they actuate-provide rapid fluid and suspended object transport. Acoustofluidic lab-on-chip devices offer a vast range of benefits in early disease identification and noninvasive drug delivery. However, their potential has long been undermined by the need for benchtop or rack-mount electronics. The piezoelectric ultrasonic transducers within require these equipment and thus acoustofluidic device implementation in a bedside setting has been limited. Here we detail a general process to enable the reader to produce battery or mains-powered microcircuits ideal for driving 1-300 MHz acoustic devices. We include the general design strategy for the circuit, the blocks that collectively define it, and suitable, specific choices for components to produce these blocks. We furthermore illustrate how to incorporate automated resonance finding and tracking, sensing and feedback, and built-in adjustability to accommodate devices' vastly different operating frequencies and powers in a single driver, including examples of fluid and particle manipulation typical of the needs in our discipline. With this in hand, the many groups active in lab-on-a-chip acoustofluidics can now finally deliver on the promise of handheld, point-of-care technologies. Practical acoustofluidics for lab-on-a-chip applications is now enabled by battery-powered handheld circuits.