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3D printing for electroanalysis: From multiuse electrochemical cells to sensors.
Cardoso, Rafael M; Mendonça, Dianderson M H; Silva, Weberson P; Silva, Murilo N T; Nossol, Edson; da Silva, Rodrigo A B; Richter, Eduardo M; Muñoz, Rodrigo A A.
Afiliação
  • Cardoso RM; Instituto de Química, Universidade Federal de Uberlândia, 38408-100, Uberlândia-MG, Brazil.
  • Mendonça DMH; Instituto de Química, Universidade Federal de Uberlândia, 38408-100, Uberlândia-MG, Brazil.
  • Silva WP; Instituto de Química, Universidade Federal de Uberlândia, 38408-100, Uberlândia-MG, Brazil.
  • Silva MNT; Instituto de Química, Universidade Federal de Uberlândia, 38408-100, Uberlândia-MG, Brazil.
  • Nossol E; Instituto de Química, Universidade Federal de Uberlândia, 38408-100, Uberlândia-MG, Brazil.
  • da Silva RAB; Instituto de Química, Universidade Federal de Uberlândia, 38408-100, Uberlândia-MG, Brazil.
  • Richter EM; Instituto de Química, Universidade Federal de Uberlândia, 38408-100, Uberlândia-MG, Brazil.
  • Muñoz RAA; Instituto de Química, Universidade Federal de Uberlândia, 38408-100, Uberlândia-MG, Brazil. Electronic address: munoz@ufu.br.
Anal Chim Acta ; 1033: 49-57, 2018 Nov 29.
Article em En | MEDLINE | ID: mdl-30172331
This work presents potential applications of low-cost fused deposition modeling 3D-printers to fabricate multiuse 3D-printed electrochemical cells for flow or batch measurements as well as the 3D-printing of electrochemical sensing platforms. Electrochemical cells and sensors were printed with acrylonitrile butadiene styrene (ABS) and conductive graphene-doped polylactic acid (G-PLA) filaments, respectively. The overall printing operation time and estimated cost per cell were 6 h and $ 6.00, respectively, while the sensors were printed within minutes (16 sensor strips of 1 × 2 cm in 10 min at a cost of $ 1.00 each sensor). The cell performance is demonstrated for the amperometric detection of tert-butylhydroquinone, dipyrone, dopamine and diclofenac by flow-injection analysis (FIA) and batch-injection analysis (BIA) using different working electrodes, including the proposed 3D-printed sensor, which presented comparable electroanalytical performance with other carbon-based electrodes (LOD of 0.1 µmol L-1 for dopamine). Raman spectroscopy and scanning electron microscopy of the 3D-printed sensor indicated the presence of graphene nanoribbons within the polymeric matrix. Electrochemical impedance spectroscopy and heterogeneous electron transfer constants (k0) for the redox probe Ru(NH3)6+3 revealed that a glassy-carbon electrode presented faster electron transfer rates than the 3D-printed sensor; however, the latter presented lower LOD values for dopamine and catechol probably due to oxygenated functional groups at the G-PLA surface.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Análise de Injeção de Fluxo / Técnicas Eletroquímicas / Impressão Tridimensional Idioma: En Revista: Anal Chim Acta Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Análise de Injeção de Fluxo / Técnicas Eletroquímicas / Impressão Tridimensional Idioma: En Revista: Anal Chim Acta Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda