A disposable bulk-acoustic-wave microalga trapping device for real-time water monitoring

Yuan, Quan; Mirzajani, Hadi; Evans, Barbara R.; Greenbaum, Elias; Wu, Jayne

doi:10.1016/j.snb.2019.127388

Title: A disposable bulk-acoustic-wave microalga trapping device for real-time water monitoring

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Abstract

Recently, there has been an increase in the use of algal physiology as a convenient and useful indicator for monitoring of water quality in aquatic ecosystems. However, current methods for monitoring algal physiology are high-cost, power intensive, and have limited sensitivity for practical samples in which algal concentration is low. In order to alleviate these problems, we developed a simple-to-fabricate acoustophoretic particle trapping device that can effectively enrich various types of microalgae such as chlorella and diatoms for real-time monitoring of water quality. This microalgae trap is fabricated by embedding a piezoelectric resonator in a single channel. In comparison to previously reported acoustophoretic particle traps, this device has a simple structure and does not require sheath flows, which makes the device low cost and simple to fabricate and operate. Using Chlorella kessleri and the marine diatom Thalassiosira pseudonana as model algae, we report the microalgae trap has demonstrated notable particle trapping efficiencies between 82 % to 74 % for Chlorella with a through-flow of 0.5 μl/min to 2.7 μl/min and 85 % to 79 % for diatoms with a 0.5 μl/min to 4 μl/min through-flow. The trap has also shown to simultaneously trap Chlorella and diatoms at different heights ofmore »« less

Authors:

Yuan, Quan ^[1];

^[2];

^[3]; Greenbaum, Elias ^[4];

^[5]

Univ. of Tennessee, Knoxville, TN (United States); Purdue Univ., West Lafayette, IN (United States)
Univ. of Tennessee, Knoxville, TN (United States); Sahand Univ. of Technology, Tabriz (Iran)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); GTA, Inc., Atlanta, GA (United States)
Univ. of Tennessee, Knoxville, TN (United States)

Publication Date:: Sat Nov 09 00:00:00 EST 2019

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE; University of Tennessee; National Natural Science Foundation of China (NSFC)

OSTI Identifier:: 1607154

Grant/Contract Number:: AC05-00OR22725; UTB1120

Resource Type:: Accepted Manuscript

Journal Name:: Sensors and Actuators. B, Chemical

Additional Journal Information:: Journal Volume: 304; Journal Issue: C; Journal ID: ISSN 0925-4005

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION; Microalgae; Microparticle trapping; Bulk-Acoustic-Wave (BAW); Low-cost fabrication

Citation Formats


                    Yuan, Quan, Mirzajani, Hadi, Evans, Barbara R., Greenbaum, Elias, and Wu, Jayne. A disposable bulk-acoustic-wave microalga trapping device for real-time water monitoring.  United States: N. p., 2019. 
Web.  doi:10.1016/j.snb.2019.127388.

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                    Yuan, Quan, Mirzajani, Hadi, Evans, Barbara R., Greenbaum, Elias, & Wu, Jayne. A disposable bulk-acoustic-wave microalga trapping device for real-time water monitoring.  United States.  https://doi.org/10.1016/j.snb.2019.127388

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                    Yuan, Quan, Mirzajani, Hadi, Evans, Barbara R., Greenbaum, Elias, and Wu, Jayne. Sat .  
"A disposable bulk-acoustic-wave microalga trapping device for real-time water monitoring".  United States.  https://doi.org/10.1016/j.snb.2019.127388.  https://www.osti.gov/servlets/purl/1607154.

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@article{osti_1607154,

  title        = {A disposable bulk-acoustic-wave microalga trapping device for real-time water monitoring},

  author       = {Yuan, Quan and Mirzajani, Hadi and Evans, Barbara R. and Greenbaum, Elias and Wu, Jayne},

  abstractNote = {Recently, there has been an increase in the use of algal physiology as a convenient and useful indicator for monitoring of water quality in aquatic ecosystems. However, current methods for monitoring algal physiology are high-cost, power intensive, and have limited sensitivity for practical samples in which algal concentration is low. In order to alleviate these problems, we developed a simple-to-fabricate acoustophoretic particle trapping device that can effectively enrich various types of microalgae such as chlorella and diatoms for real-time monitoring of water quality. This microalgae trap is fabricated by embedding a piezoelectric resonator in a single channel. In comparison to previously reported acoustophoretic particle traps, this device has a simple structure and does not require sheath flows, which makes the device low cost and simple to fabricate and operate. Using Chlorella kessleri and the marine diatom Thalassiosira pseudonana as model algae, we report the microalgae trap has demonstrated notable particle trapping efficiencies between 82 % to 74 % for Chlorella with a through-flow of 0.5 μl/min to 2.7 μl/min and 85 % to 79 % for diatoms with a 0.5 μl/min to 4 μl/min through-flow. The trap has also shown to simultaneously trap Chlorella and diatoms at different heights of the microchannel. This device has high promise for trapping, separating and manipulating microalgae.},

  doi          = {10.1016/j.snb.2019.127388},

  journal      = {Sensors and Actuators. B, Chemical},

  number       = C,

  volume       = 304,

  place        = {United States},

  year         = {Sat Nov 09 00:00:00 EST 2019},

  month        = {Sat Nov 09 00:00:00 EST 2019}

}

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