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Fabrication of Low-cost Microfluidic Chip for Terahertz Detection Applications Alfihed, Salman; Bergen, Mark; Holzman, Jonathan F.; Foulds, Ian G.

Abstract

Terahertz time-domain spectroscopy (THz-TDS) is an effective method for materials detection and identification at the macro scale, however, integration of microfluidic chips with THz spectroscopy is still needed to miniaturize this detection technology. Taking into consideration the polymer and microfabrication cost, several factors play an important role in the integration of such a technology, the optical absorption of the chip material is one of the significant factors. In this work, we study THz absorption spectra of two low-cost polymers as potential THz microfluidic chip materials, polyethylene terephthalate (PET) and ultra-high-molecular-weight polyethylene (UHMWPE). We then micro-fabricated two identical chips, one made by using PET and the other chip using UHMWPE to measure the absorption spectrum of Sylgard®184 silicone elastomer curing-agent (PDMS-CA) as a low-absorption test fluid.

Item Metadata

Title
Fabrication of Low-cost Microfluidic Chip for Terahertz Detection Applications
Creator
Alfihed, Salman; Bergen, Mark; Holzman, Jonathan F.; Foulds, Ian G.
Publisher
IEEE
Date Issued
2018-04-26
Description
Terahertz time-domain spectroscopy (THz-TDS) is an effective method for materials detection and identification at the macro scale, however, integration of microfluidic chips with THz spectroscopy is still needed to miniaturize this detection technology. Taking into consideration the polymer and microfabrication cost, several factors play an important role in the integration of such a technology, the optical absorption of the chip material is one of the significant factors. In this work, we study THz absorption spectra of two low-cost polymers as potential THz microfluidic chip materials, polyethylene terephthalate (PET) and ultra-high-molecular-weight polyethylene (UHMWPE). We then micro-fabricated two identical chips, one made by using PET and the other chip using UHMWPE to measure the absorption spectrum of Sylgard®184 silicone elastomer curing-agent (PDMS-CA) as a low-absorption test fluid.
Subject
THz-TDS; absorption coefficient; Lab-on-a-chip; low-cost microfluidics
Genre
Conference Paper
Type
Text
Language
eng
Date Available
2021-03-30
Provider
Vancouver : University of British Columbia Library
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International
DOI
10.14288/1.0396424
URI
http://hdl.handle.net/2429/77666
Affiliation
Applied Science, Faculty of; Alumni; Engineering, School of (Okanagan)
Citation
S. Alfihed, M. H. Bergen, J. F. Holzman, and I. Foulds "Fabrication of low-cost microfluidic chip for terahertz detection applications," Proceedings of the IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), pp. 52-55, Singapore, April 22-26, 2018
Publisher DOI
10.1109/NEMS.2018.8557013
Peer Review Status
Reviewed
Scholarly Level
Faculty
Copyright Holder
IEEE
Rights URI
http://creativecommons.org/licenses/by-nc-nd/4.0/
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DSpace

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Attribution-NonCommercial-NoDerivatives 4.0 International