期刊
LAB ON A CHIP
卷 12, 期 14, 页码 2491-2497出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2lc21021e
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资金
- National Institute of Health [1DP2OD007209-01]
- National Science Foundation [0824183, 0801922]
- US Department of Agriculture (USDA/NRI)
- Penn State Center for Nanoscale Science (MRSEC)
- NSF
We have developed an acoustic-based tunable patterning technique by which microparticles or cells can be arranged into reconfigurable patterns in microfluidic channels. In our approach, we use pairs of slanted-finger interdigital transducers (SFITs) to generate a tunable standing surface acoustic wave field, which in turn patterns microparticles or cells in one-or two-dimensional arrays inside the microfluidic channels-all without the assistance of fluidic flow. By tuning the frequency of the input signal applied to the SFITs, we have shown that the cell pattern can be controlled with tunability of up to 72%. This acoustic-based tunable patterning technique has the advantages of wide tunability, non-invasiveness, and ease of integration to lab-on-a-chip systems, and shall be valuable in many biological and colloidal studies.
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