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Development of New Simple Compositions of Silver Inks for the Preparation of Pseudo-Reference Electrodes.
Camargo, Jéssica R; Fernandes-Junior, Wilson S; Azzi, Déborah C; Rocha, Raquel G; Faria, Lucas V; Richter, Eduardo M; Muñoz, Rodrigo A A; Janegitz, Bruno C.
Afiliação
  • Camargo JR; Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras 13600-970, SP, Brazil.
  • Fernandes-Junior WS; Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras 13600-970, SP, Brazil.
  • Azzi DC; ADB Pesquisa e Desenvolvimento, Araras 13600-140, SP, Brazil.
  • Rocha RG; Institute of Chemistry, Federal University of Uberlândia, Uberlândia 38400-902, MG, Brazil.
  • Faria LV; Institute of Chemistry, Federal University of Uberlândia, Uberlândia 38400-902, MG, Brazil.
  • Richter EM; Institute of Chemistry, Federal University of Uberlândia, Uberlândia 38400-902, MG, Brazil.
  • Muñoz RAA; Institute of Chemistry, Federal University of Uberlândia, Uberlândia 38400-902, MG, Brazil.
  • Janegitz BC; Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras 13600-970, SP, Brazil.
Biosensors (Basel) ; 12(9)2022 Sep 16.
Article em En | MEDLINE | ID: mdl-36140146
Silver materials are known to present excellent properties, such as high electrical and thermal conductivity as well as chemical stability. Silver-based inks have drawn a lot of attention for being compatible with various substrates, which can be used in the production uniform and stable pseudo-reference electrodes with low curing temperatures. Furthermore, the interest in the use of disposable electrodes has been increasing due to the low cost and the possibility of their use in point-of-care and point-of-need situations. Thus, in this work, two new inks were developed using Ag as conductive material and colorless polymers (nail polish (NP) and shellac (SL)), and applied to different substrates (screen-printed electrodes, acetate sheets, and 3D-printed electrodes) to verify the performance of the proposed inks. Measurements attained with open circuit potential (OCP) attested to the stability of the potential of the pseudo-reference proposed for 1 h. Analytical curves for ß-estradiol were also obtained using the devices prepared with the proposed inks as pseudo-references electrodes, which presented satisfactory results concerning the potential stability (RSD < 2.6%). These inks are simple to prepare and present great alternatives for the development of pseudo-reference electrodes useful in the construction of disposable electrochemical systems.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Prata / Tinta Idioma: En Revista: Biosensors (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Prata / Tinta Idioma: En Revista: Biosensors (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça