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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Microfluidic paper-based device integrated with smartphone for point-of-use colorimetric monitoring of water quality index

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Oliani Pedro da Silva, Vinicius Aparecido [1] ; de Freitas, Rafaela Cristina [1] ; de Oliveira, Paulo Roberto [1, 2] ; Moreira, Roger Cardoso [3] ; Marcolino-Junior, Luiz Humberto [2] ; Bergamini, Marcio Fernando [2] ; Coltro, Wendell K. T. [3] ; Janegitz, Bruno Campos [1]
Total Authors: 8
[1] Univ Fed Sao Carlos, Dept Nat Sci Math & Educ, BR-13600970 Araras, SP - Brazil
[2] Univ Fed Parana, Lab Sensores Eletroquim LabSensE, Dept Chem, BR-81531980 Curitiba, Parana - Brazil
[3] Univ Fed Goias, Inst Chem, BR-74690900 Goiania, Go - Brazil
Total Affiliations: 3
Document type: Journal article
Source: MEASUREMENT; v. 164, NOV 2020.
Web of Science Citations: 0

The measurements by lab-on-a-chip devices are very interesting regarding the reduction of reagents, time and cost. In this paper, we have described the construction and application of a new device based on colorimetric measurements using a smartphone camera and a microfluidic paper-based device (lPAD), both fixed in supports obtained through 3D printing, employing a polylactic acid filament. The lPAD was evaluated as a water quality index device by colorimetric monitoring of water hardness (Ca2+ and Mg2+), total phenols (catechol), and pH. Under optimized parameters, the proposed method presented a linear range between 20 and 560 mg L-1 for Ca2+ and Mg2+(hardness), 0.20 to 16 mg L-1 of catechol and pH from 4.7 to 12, and limits of detection of 0.083 mg L-1, 0.124 mg L-1 and 0.262, for water hardness, catechol, and pH, respectively. The proposed device was successfully applied for the quality monitoring of the distribution of water samples. (C) 2020 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 17/21898-6 - New conductive devices for application in electrochemical sensing and biosensing
Grantee:Bruno Campos Janegitz
Support type: Regular Research Grants
FAPESP's process: 19/01844-4 - Development of nanostructured electrodes for determination of agrotoxic residues in honey
Grantee:Paulo Roberto de Oliveira
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 17/21097-3 - Bee-agriculture interactions: perspectives to sustainable use
Grantee:Osmar Malaspina
Support type: Research Projects - Thematic Grants