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Highly catalytic Prussian blue analogues and their application on the three-dimensional origami paper-based sweat sensors.
- Source :
-
Biosensors & bioelectronics [Biosens Bioelectron] 2024 Jun 15; Vol. 254, pp. 116188. Date of Electronic Publication: 2024 Mar 09. - Publication Year :
- 2024
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Abstract
- Prussian blue analogues (PBAs) are promising materials due to their rich active sites and straightforward synthesis. However, their limited conductivity and electron transfer inefficiency hinder practical applications. This study utilizes a simple one-pot synthesis approach to produce a tungsten-disulfide (WS <subscript>2</subscript> ) and iron-cobalt Prussian blue analogue composite (WS <subscript>2</subscript> -PBA), enhancing conductivity and electron transfer rate performance. Through the inclusion of sodium citrate into the solution, the S-edge site concentration of WS <subscript>2</subscript> increases. This augmentation introduces additional active sites and defects into the catalyst, enhancing its catalytic activity. The effectiveness of the WS <subscript>2</subscript> -PBA 3D-Origami paper device for lactate detection in sweat is also evaluated for biomedical applications. The device demonstrated a robust relationship between the lactate concentration and current intensity (R <superscript>2</superscript>  = 0.997), with a detection limit of 1.83 mM. Additionally, this platform has successfully detected lactate in clinical sweat, correlating with the high-performance liquid chromatography test results, suggesting promising prospects for clinical diagnosis. In the future, the excellent catalytic and R <subscript>ct</subscript> performance of the WS <subscript>2</subscript> -PBA will enable its use in biomedical applications.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Subjects :
- Ferrocyanides
Lactic Acid
Sweat
Biosensing Techniques
Subjects
Details
- Language :
- English
- ISSN :
- 1873-4235
- Volume :
- 254
- Database :
- MEDLINE
- Journal :
- Biosensors & bioelectronics
- Publication Type :
- Academic Journal
- Accession number :
- 38484412
- Full Text :
- https://doi.org/10.1016/j.bios.2024.116188