| Texto completo | |
| Autor(es): |
Camargo, Jessica R.
;
Fernandes-Junior, Wilson S.
;
Azzi, Deborah C.
;
Rocha, Raquel G.
;
Faria, Lucas, V
;
Richter, Eduardo M.
;
Munoz, Rodrigo A. A.
;
Janegitz, Bruno C.
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | BIOSENSORS-BASEL; v. 12, n. 9, p. 17-pg., 2022-09-01. |
| Resumo | |
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 beta-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. (AU) | |
| Processo FAPESP: | 20/04189-4 - Sensores Descartáveis com Tinta Condutora a Base de Grafite e Goma Laca em Papel Impermeável para Detecção de Sulfametoxazol |
| Beneficiário: | Julia Melo Henrique |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 19/23177-0 - Desenvolvimento de dispositivos descartáveis com tintas condutoras e substratos de baixo custo para o biossensoriamento de disfunções hormonais e detecção de Malária |
| Beneficiário: | Jéssica Rocha Camargo |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |
| 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 |
| Processo FAPESP: | 19/26953-0 - Sensores e biossensores eletroquímicos impressos em 3D utilizando filamento de grafeno para a detecção de compostos fenólicos |
| Beneficiário: | Wilson da Silva Fernandes Junior |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |