Abstract

IR Transparent Ceramic Microfluidic Chips Produced by Powder Injection Molding

Highlights

  • Microfluidics devices have gained tremendous interest in both academic and industrial research due to key advantages such as fast response times and low analytic consumption

  • Transparent polycrystalline ceramics can solve the problems and have potential to be used in microfluidics applications coupled with Fourier Transform Infrared (FTIR) analysis, providing that the required micro-features can be manufactured in the transparent ceramic substrates

  • The feasibility of producing IR transparent yttria ceramic microfluidics chip by powder injection molding and vacuum sintering has been demonstrated to cater to some microfluidics applications integrated with infrared spectroscopy

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Summary

Introduction

Microfluidics devices have gained tremendous interest in both academic and industrial research due to key advantages such as fast response times and low analytic consumption. The normal polymeric materials for microfluidics applications are often not compatible with organic solvents used in organic syntheses Those IRcompatible substrates, such as BaF2, CaF2, ZnSe, are quite expensive and challenging for micro-fabrication process. Many oxide materials in single crystal form are transparent in UV-visible-IR range and has the potential to be used in microfluidics application coupled with IR analysis techniques. The growth and machining of single crystals to form different shapes and features is an expensive task, which largely limits their scale up of production and, their range of applications These problems can be solved with the use of transparent polycrystalline materials as they show similar mechanical, chemical and thermal stability compared to single crystals and can be produced in complex shapes and are not size limited as single crystals. The transmittance of the specimen was quantified using UV/VIS/NIR spectrometer with a wavelength range from 400nm to 2200nm

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