3D printed hydrophobic barriers in a paper-based biosensor for point-of-care detection of dengue virus serotypes
Issued Date
2022-01-15
Resource Type
ISSN
00399140
Scopus ID
2-s2.0-85117078657
Journal Title
Talanta
Volume
237
Rights Holder(s)
SCOPUS
Bibliographic Citation
Talanta Vol.237 (2022)
Suggested Citation
Suvanasuthi R., Chimnaronk S., Promptmas C. 3D printed hydrophobic barriers in a paper-based biosensor for point-of-care detection of dengue virus serotypes. Talanta Vol.237 (2022). doi:10.1016/j.talanta.2021.122962 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/84212
Title
3D printed hydrophobic barriers in a paper-based biosensor for point-of-care detection of dengue virus serotypes
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
Paper-based biosensor is one of the most commonly used platforms for point-of-care testing (POCT). Among these platforms, microfluidic paper-based analytical devices (μPADs) have the most versatile designs due to the different hydrophobic barrier patterns and layers of the devices. In addition, μPADs can also be used in combination with other biosensor platforms to improve the performance of the device. Simple and convenient methods for fabricating low-cost and design-adjustable hydrophobic barriers on paper are one of the most challenging aspects for creating μPADs. This work demonstrated a simple technique for using the common polylactic acid (PLA) filament and wax filament to create hydrophobic barriers on paper for μPADs using a commercialized 3D printer. As a proof of concept, the papers with 3D printed PLA barrier were used in combination with a fluidic chip in a prototype biosensor, in which the barrier paper housed four cell-free reactions and the fluidic chip achieved sample delivery to the reactions in the device. Our designed prototype was capable of discriminating dengue virus serotypes based on small nucleotide sequence differences. The proposed combination of 3D-printed barrier paper and fluidic chip provides a versatile platform for rapid prototyping of POCT with possible compatibility with various detection systems.