Portable paper-based device for quantitative colorimetric assays relying on light reflectance principle.
Electrophoresis
; 35(8): 1152-9, 2014 Apr.
Article
em En
| MEDLINE
| ID: mdl-24375226
ABSTRACT
This paper presents a novel paper-based analytical device based on the colorimetric paper assays through its light reflectance. The device is portable, low cost (<20 dollars), and lightweight (only 176 g) that is available to assess the cost-effectiveness and appropriateness of the original health care or on-site detection information. Based on the light reflectance principle, the signal can be obtained directly, stably and user-friendly in our device. We demonstrated the utility and broad applicability of this technique with measurements of different biological and pollution target samples (BSA, glucose, Fe, and nitrite). Moreover, the real samples of Fe (II) and nitrite in the local tap water were successfully analyzed, and compared with the standard UV absorption method, the quantitative results showed good performance, reproducibility, and reliability. This device could provide quantitative information very conveniently and show great potential to broad fields of resource-limited analysis, medical diagnostics, and on-site environmental detection.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Papel
/
Colorimetria
/
Luz
Tipo de estudo:
Evaluation_studies
Limite:
Animals
Idioma:
En
Revista:
Electrophoresis
Ano de publicação:
2014
Tipo de documento:
Article