Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4846
Título: Viability of the use of thin-film A-SiC:H photodiodes for protein identification
Autor: Louro, Paula Maria Garcia
Silva, Vítor Manuel Guerra Vaz
Karmali, Amin Mahamede Vissanji
Vieira, Maria Manuela Almeida Carvalho
Palavras-chave: Glucose nanosensor
Optoelectronics
Data: Fev-2014
Editora: Wiley-VCH Verlag
Citação: LOURO, Paula Maria Garcia; [et al] – Viability of the use of the thin-film A-SiC:H photodiodes for protein identification. Physica Status Solidi (C) Current Topics in Solid State Physics. ISSN: 1862-6351. Vol. 11, nr. 11-12 (2014) p. 228-233.
Resumo: In this paper, we present a multilayer device based on a-Si:H/a-SiC:H that operates as photodetector and optical filter. The use of such device in protein detection applications is relevant in Fluorescence Resonance Energy Transfer (FRET) measurements. This method demands the detection of fluorescent signals located at specific wavelengths bands in the visible part of the electromagnetic spectrum. The device operates in the visible range with a selective sensitivity dependent on electrical and optical bias. Several nanosensors were tested with a commercial spectrophotometer to assess the performance of FRET signals using glucose solutions of different concentrations. The proposed device was used to demonstrate the possibility of FRET signals detection, using visible signals of similar wavelength and intensity. The device sensitivity was tuned to enhance the wavelength band of interest using steady state optical bias at 400 nm. Results show the ability of the device to detect signals in this range. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4846
DOI: 10.1002/pssc.201300576
ISSN: 1862-6351
Aparece nas colecções:ISEL - Eng. Elect. Tel. Comp. - Artigos

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