Artículo
Colorimetric, naked-eye detection of lysozyme in human urine with gold nanoparticles
Autor/es | Castillo Hernández, Paula Margarita
Fernández Acejo, Francisco J. Carnerero Panduro, José María Prado Gotor, Rafael Jiménez Ruiz, Aila |
Departamento | Universidad de Sevilla. Departamento de Química Física |
Fecha de publicación | 2021 |
Fecha de depósito | 2021-04-29 |
Publicado en |
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Resumen | The stabilizing effect of lysozymes to salt addition over a gold colloid are exploited in order to detect lysozymes in human urine samples. The present research is aimed at the development of a fast, naked-eye detection ... The stabilizing effect of lysozymes to salt addition over a gold colloid are exploited in order to detect lysozymes in human urine samples. The present research is aimed at the development of a fast, naked-eye detection test for urinary lysozymuria, in which direct comparison with a colorimetric reference, allows for the immediate determination of positive/negative cases. CIEL*a*b* parameters were obtained from sample absorbance measurements, and their color difference with respect to a fixed reference point was measured by calculating the ∆E76 parameter, which is a measure of how well the colors can be distinguished by an untrained observer. Results show that a simple and quick test can reliably, in less than 15 min, give a positive colorimetric response in the naked eye for concentrations of a urinary lysozyme over 57.2 µg/mL. This concentration is well within the limits of that observed for leukemia-associated lysozymurias, among other disorders. |
Identificador del proyecto | 2010/00000762
PP2016-5937 2019/00000570 2020/00001068 2020/00001073 2019/FQM-386 |
Cita | Castillo Hernández, P.M., Fernández Acejo, F.J., Carnerero Panduro, J.M., Prado Gotor, R. y Jiménez Ruiz, A. (2021). Colorimetric, naked-eye detection of lysozyme in human urine with gold nanoparticles. Nanomaterials, 11 (3), 612. |
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