Issue 3, 2024

In situ biomimetic mineralization of a paper microfluidic device as a luminescent sensor for nitrite determination

Abstract

Herein, a novel luminescent platform has been designed via in situ mineralization of a microfluidic paper-based analytical device (μPAD) made of cellulose in the presence of Tb3+. Cellulose nanofibers were homogeneously mineralized with Tb-doped calcium phosphate nanoparticles resulting in a luminescent composite material, which exhibits the characteristic green emission from Tb3+ ions, and is stable during long periods of time (6 months). This strong green emission is selectively quenched upon addition of nitrite, thus making the μPAD a potential sensor for the quantification of nitrite, a hazardous pollutant in water. Also, the μPAD presents high sensitivity with a detection limit (10 μM) lower than the permissible limits of nitrite in drinking water (65 μM) and it also displays good accuracy and reproducibility in real water samples. The in situ biomimetic mineralization of paper holds promise for an environmentally friendly design of sensors for nitrite contamination of water.

Graphical abstract: In situ biomimetic mineralization of a paper microfluidic device as a luminescent sensor for nitrite determination

Supplementary files

Article information

Article type
Paper
Submitted
28 8 2023
Accepted
07 12 2023
First published
11 12 2023

Environ. Sci.: Nano, 2024,11, 1060-1069

In situ biomimetic mineralization of a paper microfluidic device as a luminescent sensor for nitrite determination

I. Blasco-Pascual, I. Ortiz-Gómez, L. F. Capitán-Vallvey, J. M. Delgado-López, G. B. Ramírez-Rodríguez and A. Salinas-Castillo, Environ. Sci.: Nano, 2024, 11, 1060 DOI: 10.1039/D3EN00586K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements