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标题：Low-Cost 3D Printer Drawn Optical Microfibers for Smartphone Colorimetric Detection
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作者：Md Arafat Hossain ; Protik Chandra Biswas ; Saptami Rani 等
期刊名称：Biosensors
电子版ISSN：2079-6374
出版年度：2022
卷号：12
期号：2
DOI：10.3390/bios12020054
语种：English
出版社：MDPI Publishing
摘要：A fused deposition modeling (FDM) 3D printer extruder was utilized as a micro-furnace draw tower for the direct fabrication of low-cost optical fibers. An air-clad multimode microfiber was drawn from optically transparent polyethylene terephthalate glycol (PETG) filament. A custom-made spooling collection allows for an automatic variation of fiber diameter between ϕ ∼ 72 to 397 μm by tuning the drawing speed. Microstructure imaging as well as the 3D beam profiling of the transmitted beam in the orthogonal axes was used to show good quality, functioning microfiber fabrication with uniform diameter and identical beam profiles for orthogonal axes. The drawn microfiber was used to demonstrate budget smartphone colorimetric-based absorption measurement to detect the degree of adulteration of olive oils with soybean oil.
关键词：en3D printingpolymer optical fiberthermal extrusionpolyethylene terephthalate glycolfused deposition modelingsmartphone sensorlab-in-a-phoneextra virgin olive oil