TY - JOUR
T1 - Fully integrated monolithic opoelectronic transducer for real.time protein and DNA detection
T2 - The NEMOSLAB appraoch
AU - Misiakos, Konstatinos
AU - S. Petrou, Panagiota
AU - E. Kakabakos, Sotirios
AU - Yannoukakos, Drakoulis
AU - Contopanagos, Harry
AU - Knoll, Thorsten
AU - Velten, Thomas
AU - DeFazio, Marco
AU - Schiavo, Luigi
AU - Passamano, Miriam
AU - Stamou, Dimitrios
AU - Nounesis, George
N1 - Selected Papers from the World Congress on Biosensors, Glasgow, Scotland, UK May 26-28-2010
PY - 2010/12/15
Y1 - 2010/12/15
N2 - The development and testing of a portable bioanalytical device which was capable for real-time monitoring of binding assays was demonstrated. The device was based on arrays of nine optoelectronic transducers monolithically integrated on silicon chips. The optocouplers consisted of nine silicon avalanche diodes self-aligned to nine silicon nitride waveguides all converging to a single silicon detector. The waveguides were biofunctionalized by appropriate recognition molecules. Integrated thick polymer microchannels provided the necessary fluidic functions to the chip. A single sided direct contact scheme through a board-to-board receptacle was developed and combined with a portable customized readout and control instrument. Real-time detection of deleterious mutations in BRCA1 gene related to predisposition to hereditary breast/ovarian cancer was performed with the instrument developed using PCR products. Detection was based on waveguided photons elimination through interaction with fluorescently labeled PCR products. Detection of single biomolecular binding events was also demonstrated using nanoparticles as labels. In addition, label-free monitoring of bioreactions in real time was achieved by exploiting wavelength filtering on photonic crystal engineered waveguides. The proposed miniaturized sensing device with proper packaging and accompanied by a portable instrument can find wide application as a platform for reliable and cost effective point-of-care diagnosis.
AB - The development and testing of a portable bioanalytical device which was capable for real-time monitoring of binding assays was demonstrated. The device was based on arrays of nine optoelectronic transducers monolithically integrated on silicon chips. The optocouplers consisted of nine silicon avalanche diodes self-aligned to nine silicon nitride waveguides all converging to a single silicon detector. The waveguides were biofunctionalized by appropriate recognition molecules. Integrated thick polymer microchannels provided the necessary fluidic functions to the chip. A single sided direct contact scheme through a board-to-board receptacle was developed and combined with a portable customized readout and control instrument. Real-time detection of deleterious mutations in BRCA1 gene related to predisposition to hereditary breast/ovarian cancer was performed with the instrument developed using PCR products. Detection was based on waveguided photons elimination through interaction with fluorescently labeled PCR products. Detection of single biomolecular binding events was also demonstrated using nanoparticles as labels. In addition, label-free monitoring of bioreactions in real time was achieved by exploiting wavelength filtering on photonic crystal engineered waveguides. The proposed miniaturized sensing device with proper packaging and accompanied by a portable instrument can find wide application as a platform for reliable and cost effective point-of-care diagnosis.
U2 - 10.1016/j.bios.2010.07.104
DO - 10.1016/j.bios.2010.07.104
M3 - Journal article
SN - 0956-5663
VL - 26
SP - 1528
EP - 1536
JO - Biosensors and Bioelectronics
JF - Biosensors and Bioelectronics
IS - 4
ER -
