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

Autor(es)

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]

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: MEASUREMENT; v. 164, NOV 2020.
• Citações Web of Science: 0

Resumo

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)

• Processo FAPESP: 17/21898-6 - Novos dispositivos condutores para aplicação em sensores e biossensores eletroquímicos
• Beneficiário: Bruno Campos Janegitz
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 19/01844-4 - Desenvolvimento de eletrodos nanoestruturados para a determinação de resíduos agrotóxicos em mel
• Beneficiário: Paulo Roberto de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/21097-3 - Interações abelha-agricultura: perspectivas para a utilização sustentável
• Beneficiário: Osmar Malaspina
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático