Microfluidic mixing probe: generating multiple concentration-varying flow dipoles

Abstract This study advances microfluidic probe (MFP) technology through the development of a 3D-printed Microfluidic Mixing Probe (MMP), which integrates a built-in pre-mixer network of channels and features a lined array of paired injection and aspiration apertures. By combining the concepts of hy...

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Main Authors: Dima Samer Ali, Ayoub Glia, Pavithra Sukumar, Muhammedin Deliorman, Mohammad A. Qasaimeh
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-85797-3
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author Dima Samer Ali
Ayoub Glia
Pavithra Sukumar
Muhammedin Deliorman
Mohammad A. Qasaimeh
author_facet Dima Samer Ali
Ayoub Glia
Pavithra Sukumar
Muhammedin Deliorman
Mohammad A. Qasaimeh
author_sort Dima Samer Ali
collection DOAJ
description Abstract This study advances microfluidic probe (MFP) technology through the development of a 3D-printed Microfluidic Mixing Probe (MMP), which integrates a built-in pre-mixer network of channels and features a lined array of paired injection and aspiration apertures. By combining the concepts of hydrodynamic flow confinements (HFCs) and “Christmas-tree” concentration gradient generation, the MMP can produce multiple concentration-varying flow dipoles, ranging from 0 to 100%, within an open microfluidic environment. This innovation overcomes previous limitations of MFPs, which only produced homogeneous bioreagents, by utilizing the pre-mixer to create distinct concentration of injected biochemicals. Experimental results with fluorescent dyes and the chemotherapeutic agent Cisplatin on MCF-7 cells confirmed the MMP’s ability to generate precise, discrete concentration gradients with the formed flow dipoles, consistent with numerical models. The MMP’s ability to localize drug exposure across cell cultures without cross-contamination opens new avenues for drug testing, personalized medicine, and molecular biology. It enables precise control over gradient delivery, dosage, and timing, which are key factors in enhancing drug evaluation processes.
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institution Kabale University
issn 2045-2322
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spelling doaj-art-f37525054748408eb24bc1f6ed5607012025-01-19T12:21:56ZengNature PortfolioScientific Reports2045-23222025-01-0115111010.1038/s41598-025-85797-3Microfluidic mixing probe: generating multiple concentration-varying flow dipolesDima Samer Ali0Ayoub Glia1Pavithra Sukumar2Muhammedin Deliorman3Mohammad A. Qasaimeh4Division of Engineering, New York University Abu DhabiDivision of Engineering, New York University Abu DhabiDivision of Engineering, New York University Abu DhabiDivision of Engineering, New York University Abu DhabiDivision of Engineering, New York University Abu DhabiAbstract This study advances microfluidic probe (MFP) technology through the development of a 3D-printed Microfluidic Mixing Probe (MMP), which integrates a built-in pre-mixer network of channels and features a lined array of paired injection and aspiration apertures. By combining the concepts of hydrodynamic flow confinements (HFCs) and “Christmas-tree” concentration gradient generation, the MMP can produce multiple concentration-varying flow dipoles, ranging from 0 to 100%, within an open microfluidic environment. This innovation overcomes previous limitations of MFPs, which only produced homogeneous bioreagents, by utilizing the pre-mixer to create distinct concentration of injected biochemicals. Experimental results with fluorescent dyes and the chemotherapeutic agent Cisplatin on MCF-7 cells confirmed the MMP’s ability to generate precise, discrete concentration gradients with the formed flow dipoles, consistent with numerical models. The MMP’s ability to localize drug exposure across cell cultures without cross-contamination opens new avenues for drug testing, personalized medicine, and molecular biology. It enables precise control over gradient delivery, dosage, and timing, which are key factors in enhancing drug evaluation processes.https://doi.org/10.1038/s41598-025-85797-3
spellingShingle Dima Samer Ali
Ayoub Glia
Pavithra Sukumar
Muhammedin Deliorman
Mohammad A. Qasaimeh
Microfluidic mixing probe: generating multiple concentration-varying flow dipoles
Scientific Reports
title Microfluidic mixing probe: generating multiple concentration-varying flow dipoles
title_full Microfluidic mixing probe: generating multiple concentration-varying flow dipoles
title_fullStr Microfluidic mixing probe: generating multiple concentration-varying flow dipoles
title_full_unstemmed Microfluidic mixing probe: generating multiple concentration-varying flow dipoles
title_short Microfluidic mixing probe: generating multiple concentration-varying flow dipoles
title_sort microfluidic mixing probe generating multiple concentration varying flow dipoles
url https://doi.org/10.1038/s41598-025-85797-3
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