Long-term stabilization of hydrogen peroxide by poly(vinyl alcohol) on paper-based analytical devices

Tuchpongpuch Boonpoempoon, Wanida Wonsawat, Takashi Kaneta

Research output: Contribution to journalArticle

Abstract

Stabilizing reagents that can be deposited onto paper is an important issue for researchers who depend on paper-based analytical devices (PADs), because long-term stability of the devices is essential in point-of-care testing. Here, we found that poly(vinyl alcohol) (PVA) would stabilize hydrogen peroxide placed on a paper substrate following exposure to air. Horseradish peroxidase was employed as a sample in colorimetric measurements of PADs after hydrogen peroxide and 3,3',5,5'-tetramethylbenzidine were deposited as substrates in an enzymatic reaction. The addition of PVA to hydrogen peroxide significantly suppressed its degradation. Concentrations of PVA that ranged from 0.5 to 2%, increased the duration of the stability of hydrogen peroxide, and the results for a PVA concentration of 1% approximated those of 2% PVA. Storage of the PADs at 4 °C in a refrigerator extended the stability of the hydrogen peroxide containing 2% PVA by as much as 30 days. The stability of hydrogen peroxide without PVA was degraded after one day under room temperature.

Original languageEnglish
Number of pages1
JournalScientific reports
Volume9
Issue number1
DOIs
Publication statusPublished - Sep 10 2019

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Hydrogen Peroxide
Alcohols
Equipment and Supplies
Horseradish Peroxidase
Air
Research Personnel
Temperature

ASJC Scopus subject areas

  • General

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Long-term stabilization of hydrogen peroxide by poly(vinyl alcohol) on paper-based analytical devices. / Boonpoempoon, Tuchpongpuch; Wonsawat, Wanida; Kaneta, Takashi.

In: Scientific reports, Vol. 9, No. 1, 10.09.2019.

Research output: Contribution to journalArticle

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