A hybrid paper-based microfluidic platform toward veterinary P-ELISA

Valentina Busin, Stewart Burgess, Wenmiao Shu

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This study describes a novel fabrication method to produce a hybrid paper-based microfluidic platform, termed Multi-Pad Paper Plate (MP3) for transfer and optimisation of enzyme-linked immunoassays (ELISA) on paper (P-ELISA). The new fabrication technique is based on a combination of laser micromachining of paper and packaging through thermal lamination. This method is simple, rapid and of high-resolution and can produce robust, versatile and low-cost devices, compatible with a standard 96-well microplate format. The MP3 was used to transfer a sandwich ELISA for detection of bovine haptoglobin (Hp), a marker of inflammation in animals allowing optimisation of the assay in the new format. Using the MP3, a standard curve was generated and the limit of detection achieved was 0.73 μg/ml. The optimised protocol was also applied to the detection of Hp in bovine serum, demonstrating the possibility of using this platform with biological samples. The new platform allowed for a reduction of 93% in time and of 88% in cost for performing the assay and represents a valid alternative to other commonly used device fabrication methods, especially in the context of low-resource settings. It has the potential to translate similar assays into P-ELISA and offers a starting point for achieving animal-side testing.

Original languageEnglish
Pages (from-to)536-542
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume273
Early online date18 Jun 2018
DOIs
Publication statusPublished - 10 Nov 2018

Keywords

  • Lamination
  • Laser micromachining
  • P-ELISA
  • Paper microfluidics
  • Point-of-care
  • serum

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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