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Hand-powered elastomeric pump for microfluidic point-of-care diagnostics

Eluru, G and Adhikari, JV and Chanda, P and Gorthi, SS (2020) Hand-powered elastomeric pump for microfluidic point-of-care diagnostics. In: Micromachines, 11 (1).

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Official URL: https://dx.doi.org/10.3390/mi11010067


The pumping of fluids into microfluidic channels has become almost an unavoidable operation in all microfluidic applications. Such a need has seen an outburst of several techniques for pumping, out of which the majority of techniques involve complicated fabrication, as they require the introduction of electrodes, valves, piezoelectric materials, acoustic transducers, etc., into the microfluidic device. In addition to the complexity, this also escalates the cost incurred per device. Further, the use of stable external power supplies to produce such a pumping action adds to the bulkiness of the pumps, making them unsuitable for point-of-care diagnostic (POCD) applications. This paper reports a technique of pumping that is simple to realize and does not require external electric/magnetic power, but exploits the elastic properties of materials to achieve the pumping action. This mechanism of pumping ensured the cost per pump to less than 4 USD and can be used for at least 500 times. Several simulations, validation, and characterization experiments were performed on the developed pump to establish its functionality and suitability for use in POCD applications.

Item Type: Journal Article
Publication: Micromachines
Publisher: MDPI AG
Additional Information: Copyright of this article belongs to MDPI AG
Keywords: Acoustic transducers; Electric power systems; Fluidic devices; Microfluidics, Elastic properties; External power supplies; Micro fluidic applications; Micro pump; Micro-fluidic devices; Microfluidic channel; Passive pumping; Point of care diagnostic, Pumps
Department/Centre: Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 02 Mar 2020 11:29
Last Modified: 02 Mar 2020 11:29
URI: http://eprints.iisc.ac.in/id/eprint/64599

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