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Correction: Kang et al. Fluid Flow to Electricity: Capturing Flow-Induced Vibrations with Micro-Electromechanical-System-Based Piezoelectric Energy Harvester. <i>Micromachines</i> 2024, <i>15</i>, 581.

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Fabricating Highly Open Porous Microspheres HOPMs via Microfluidic Technology
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Hemp-Based Microfluidics.

Mikail Temirel1, Sajjad Rahmani Dabbagh2,3, Savas Tasoglu2,3,4,5,6

  • 1Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269, USA.

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Summary
This summary is machine-generated.

Hemp paper shows promise as a sustainable substrate for microfluidic analytical devices. Researchers developed methods to create precise hydrophobic patterns on hemp paper, enabling fluid control for analytical applications.

Keywords:
diagnosticshempmicrofluidicspaperurine diagnostics

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Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Biotechnology

Background:

  • Hemp is a sustainable crop with diverse applications, including paper production.
  • Microfluidic paper-based analytical devices (µPADs) offer environmental and high-throughput advantages.
  • Limited research exists on hemp paper's suitability as a µPAD substrate.

Purpose of the Study:

  • To investigate hemp paper as a substrate for fabricating microfluidic paper-based analytical devices (µPADs).
  • To characterize the patterning capabilities and fluidic properties of hemp paper for µPAD applications.
  • To evaluate hemp paper's performance in a practical analytical task.

Main Methods:

  • Fabrication of hydrophobic barriers on hemp paper using a pen plotter and commercial markers.
  • Characterization of pattern resolution, fluid wicking speed, and wettability.
  • Comparison of hemp paper with Whatman No. 1 paper.
  • Mathematical modeling of fluid wicking using a modified Washburn equation.
  • Validation of hemp paper for potassium ion detection in artificial urine.

Main Results:

  • Water-resistant hydrophobic patterns were successfully created on hemp paper using markers.
  • The smallest and thinnest water-resistant patterns were determined for high-resolution devices.
  • Hemp paper exhibited comparable or superior fluid wicking properties to Whatman No. 1 paper.
  • The modified Washburn equation accurately modeled fluid wicking on hemp paper.
  • Hemp paper demonstrated efficacy in detecting potassium concentration in artificial urine.

Conclusions:

  • Hemp paper is a viable and sustainable substrate for microfluidic paper-based analytical devices (µPADs).
  • The developed patterning techniques enable the creation of cost-effective, high-resolution µPADs on hemp.
  • Hemp paper-based µPADs show potential for various analytical and diagnostic applications.