Laser & Optoelectronics Progress, Volume. 62, Issue 9, 0914002(2025)

Laser Fabrication of Dual-Circular Track Microchannel and Its Application in Gas Transport

Sizhu Wu1,2、*, Xueli Gao1, Jiawei Lu1, Lu Zeng1, Kelin Xie1, Jianquan Li1, Yifan Liu1, Chao Chen3, Yi Xiao1,4, and Zhixiang Gu1,4
Author Affiliations
  • 1School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, Anhui , China
  • 2Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, Hefei University of Technology, Hefei 230009, Anhui , China
  • 3School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, Anhui , China
  • 4School of Mechanical Engineering, Nantong Vocational University, Nantong 226000, Jiangsu , China
  • show less

    Manipulating droplets composed of nonpolar solvents or bubbles in aqueous media is crucial in materials science and industrial production. In this study, a dual-circular track microdevice is prepared on an aluminum substrate surface using a nanosecond laser as a gas storage system. When the bubbles are injected onto the smaller circular, they diffuse toward the boundaries until a Laplace pressure is generated. The generated Laplace pressure, as the main driving force, can transport the bubbles along the trajectory toward the opposite circular point, thereby achieving a stable state when the bubbles from both circles match. Additionally, the effects of various parameters of the dual-circular track on the efficiency of bubble transportation are investigated. By altering the track width and length, as well as the diameter of two circles, fixed and unidirectional transportations of bubbles can be achieved. Based on the characteristics of the dual-circular track microdevice, complex bubble transportation trajectories are designed. These trajectories significantly benefit microfluidic manipulation, such as drug delivery, gas catalysis, and bubble accumulation.

    Keywords
    Tools

    Get Citation

    Copy Citation Text

    Sizhu Wu, Xueli Gao, Jiawei Lu, Lu Zeng, Kelin Xie, Jianquan Li, Yifan Liu, Chao Chen, Yi Xiao, Zhixiang Gu. Laser Fabrication of Dual-Circular Track Microchannel and Its Application in Gas Transport[J]. Laser & Optoelectronics Progress, 2025, 62(9): 0914002

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Lasers and Laser Optics

    Received: Jul. 18, 2024

    Accepted: Sep. 12, 2024

    Published Online: Apr. 18, 2025

    The Author Email:

    DOI:10.3788/LOP241715

    CSTR:32186.14.LOP241715

    Topics