Speaker
Description
Particle manipulation in a liquid has many applications at different length scales: from size-based particle sorting in industrial production processes to cellular manipulation for bio-sensing and analysis in microfluidic lab-on-a-chip devices. Many active methods employing various external fields, such as, optical, acoustic, magnetic and electrical have been used for tweezing particles, particle clusters and biological cells in a liquid volume [1,2,3,4]. However, these devices generally require complex and costly fabrication procedures and operations.
In this work, we use low frequency vibrations (~100 Hz) via capillary waves as efficient tweezers to control particle movement in a liquid volume. We demonstrate a mechanism to manually control the position of capillary wave nodes in an open liquid volume. We demonstrate that the capillary waves trap particles underneath their nodes and the particles follow these nodal positions as the capillary waves are displaced in the liquid volume. We also characterise the effects of liquid volume, actuation amplitude and frequency on the particles’ movement. This newly developed platform provides an adaptable solution to the collection and manipulation of microparticles in biomedical or chemical applications.
References
References:
1. C. Mio, T. Gong, A. Terray, and D. W. M. Marr, “Design of a scanning laser optical trap for multiparticle manipulation,” Rev. Sci. Instrum. 71, 2196–2200 (2000).
2. C. Zhang, K. Khoshmanesh, A. Mitchell, and K. Kalantar-zadeh, “Dielectrophoresis for manipulation of micro/nano particles in microfluidic systems,” Anal. Bioanal. Chem. 396, 401–420 (2010).
3. C. Quanliang, H. Xiaotao, and L. Liang, “Two-dimensional manipulation of magnetic nanoparticles in microfluidic systems,” Appl. Phys. Express 6, 025201 (2013).
4. P. Agrawal, P. S. Gandhi and A. Neild, “Microparticle Response to Two-Dimensional Streaming Flows in RectangularChambers Undergoing Low-Frequency Horizontal Vibrations,” Phys Rev Appl 2, 064008 (2014).
| Participation | Online |
|---|---|
| Country | United Kingdom |
| MDPI Energies Student Poster Award | No, do not submit my presenation for the student posters award. |
| Time Block Preference | Time Block B (14:00-17:00 CET) |
| Acceptance of the Terms & Conditions | Click here to agree |
