Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/5638
Título: | An MCM-based microsystem for colorimetric detection of biomolecules in biological fluids |
Autor(es): | Minas, Graça Graaf, G. de Wolffenbuttel, R. F. Correia, J. H. |
Palavras-chave: | Biomolecule analysis Multichip module (MCM) Optical absorption SU-8 techniques |
Data: | 2006 |
Editora: | IEEE |
Revista: | IEEE sensors journal |
Citação: | "IEEE sensors journal". ISSN 1530-437X. 6:4 (Aug.2006) 1003-1009. |
Resumo(s): | This paper presents a multichip module microsystem for biological fluid analysis. It is composed of three parts, namely 1) CMOS silicon optical detection microsystem, which includes a photodetector and a light-to-frequency converter for readout; 2) dielectric thin-film-based optical filter on top of the photodetector fabricated using IC-compatible postprocessing; and 3) glass die on top containing the microchannels fabricated using SU-8 techniques. The application is in low-cost quantitative measurement of the concentration of biomolecules in biological fluids. Its operation is based on optical absorption in the part of the visible spectrum that is defined by the specific biomolecule. Signals proportional to the intensity of the light transmitted through the biological fluid are available at the output in the form of bit streams, which allows simple computer interfacing. The quantitative measurement of the total protein in urine is successfully demonstrated. The photodiode responsivity is 224 mA/W with a full-width at half-maximum of 10 nm at λ = 600 nm. The optical system sensitivity is 1 kHz/W m−2 at λ = 670 nm. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/5638 |
DOI: | 10.1109/JSEN.2006.877992 |
ISSN: | 1530-437X |
Versão da editora: | http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=7361 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | DEI - Artigos em revistas internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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IEEE sensors Journal V6 N4 2006 p1003_1009.pdf Acesso restrito! | Documento principal | 762,25 kB | Adobe PDF | Ver/Abrir |