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Updated: May 12, 2026

Portable Paper-Based Immunoassay Combined with Smartphone Application for Colorimetric and Quantitative Detection of Dengue NS1 Antigen
Published on: January 26, 2024
Molecular-level dengue fever diagnostic devices made out of paper
Shih-Jie Lo1, Shih-Chun Yang, Da-Jeng Yao
1Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan.
Abstract:
This paper describes the development of nucleic acid detection in paper using a combination of commercial fluorescent probes and DNA ladders, and provides us with a better understanding of the interactions between double-stranded DNA (the amplified products in this study), fiber structures in paper, and fluorescent probes. The amplified products (the reverse-transcription and amplification of dengue virus serotype-2 RNA via RT-LAMP) in this study were subsequently fluorescently labeled in paper-based test zones (on our paper-based diagnostic device), thus fluorescent probes were used to perform the diagnosis of dengue fever, specific to serotype-2.

