Correction: On-chip stool liquefaction via acoustofluidics

Abstract

Correction for ‘On-chip stool liquefaction via acoustofluidics’ by Shuaiguo Zhao et al., Lab Chip, 2019, 19, 941–947, DOI: 10.1039/C8LC01310A.

Polydimethylsiloxane microstructure-induced acoustic streaming for enhanced ultrasonic DNA fragmentation on a microfluidic chip

“…to realize onchip micromixing, pumping and lysis of cells and tissues. [41][42][43][44] Reliable and stable ultrasonic on-chip DNA fragmentation enhancing methods are urgently needed for microfluidics applications in genetic research. In our previous work, 13 a bubble-enhanced ultrasonic microfluidic chip was presented for rapid DNA fragmentation.…”

Contactless acoustic micro/nano manipulation: a paradigm for next generation applications in life sciences

“…Overall, these devices employ commercially available piezoelectric transducers that operate in the range of less than 100kHz to manipulate nm– μ m size particles. Important applications of streaming-driven tweezers include transport of cells [77], pollen grains [80], manipulation of bio-organisms [78,79], micro-mixing [27,81], pumping [13,82–84] and enrichment of fluid mixtures [85,86].…”

“…The vibrational structures in streaming-driven devices comprise of either sharp protrusions [13,86–88] or air-filled cavities [79,80,83–85] indented at the boundaries of the microchannel. These structures can be incorporated in the bulk [27,81,89] or side-walls [78,79] of the channels to generate the requisite streaming effects.…”

“…The first generation of devices incorporate symmetric vibrational structures (figure 6 a ). These devices are primarily intended for localized mixing of fluids [27,86] or studying morphology of bio-species [78–80]. Here, the symmetrically indented structures to the microchannel walls provide counter-flowing vortices with no net directional flow in the channel.…”

“…Recently, streaming-driven devices have incorporated long microfluidic trails as an extensive workspace [84–86], and use of active tethered components inside the channel for higher volumetric resolution [82,90]. Many of these devices have been synthesized with periodic cyclic microchannel trails that facilitate multi-stage treatment of fluid samples for their enrichment [84,85] and purification [86]. On the other hand, a sophisticated assembly of IDTs within the workspace streaming-driven tweezers has been reported to achieve a pumping precision of nL s −1 [82].…”