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Airborne Acoustic Vortex End Effector‐Based Contactless, Multi‐Mode, Programmable Control of Object Surfing

Journal Article · · Advanced Materials Technologies
 [1];  [1];  [1];  [2];  [3];  [4];  [1];  [1];  [4];  [1];  [2];  [1]
  1. Department of Mechanical Engineering Virginia Polytechnic Institute and State University Blacksburg VA 24060 USA
  2. Fralin Biomedical Research Institute Virginia Polytechnic Institute and State University Roanoke VA 24016 USA
  3. Department of Biomedical Engineering and Science Virginia Polytechnic Institute and State University Blacksburg VA 24060 USA
  4. Department of Aerospace Engineering Mississippi State University Mississippi State MS 39762 USA

Abstract

Tweezers based on optical, electric, magnetic, and acoustic fields have shown great potential for contactless object manipulation. However, current tweezers designed for manipulating millimeter‐sized objects such as droplets, particles, and small animals exhibit limitations in translation resolution, range, and path complexity. Here, a novel acoustic vortex tweezers system is introduced, which leverages a unique airborne acoustic vortex end effector integrated with a three‐degree‐of‐freedom (DoF) linear motion stage, for enabling contactless, multi‐mode, programmable manipulation of millimeter‐sized objects. The acoustic vortex end effector utilizes a cascaded circular acoustic array, which is portable and battery‐powered, to generate an acoustic vortex with a ring‐shaped energy pattern. The vortex applies acoustic radiation forces to trap and spin an object at its center, simultaneously protecting this object by repelling other materials away with its high‐energy ring. Moreover, The vortex tweezers system facilitates contactless, multi‐mode, programmable object surfing, as demonstrated in experiments involving trapping, repelling, and spinning particles, translating particles along complex paths, guiding particles around barriers, translating and rotating droplets containing zebrafish larvae, and merging droplets. With these capabilities, It is anticipated that the tweezers system will become a valuable tool for the automated, contactless handling of droplets, particles, and bio‐samples in biomedical and biochemical research.

Sponsoring Organization:
USDOE
Grant/Contract Number:
NONE; NE0009187
OSTI ID:
2377013
Journal Information:
Advanced Materials Technologies, Journal Name: Advanced Materials Technologies Journal Issue: 18 Vol. 9; ISSN 2365-709X
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United States
Language:
English

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