To access the full text documents, please follow this link: http://hdl.handle.net/2445/8758

Microinductive signal conditioning with resonant differential filters: high-sensitivity biodetection applications
Baglio, Salvatore; Pérez Rodríguez, Alejandro; Martínez Mendizábal, Susana; Serre, Christophe; Morante i Lleonart, Joan Ramon; Esteve Tintó, Jaume; Montserrat i Martí, Josep
Universitat de Barcelona
Inductive-based devices integrated with Si technology for biodetection applications are characterized, using simple resonant differential filter configurations. This has allowed the corroboration of the viability of the proposed circuits, which are characterized by their very high simplicity, for microinductive signal conditioning in high-sensitivity sensor devices. The simulation of these simple circuits predicts sensitivities of the differential output voltage which can achieve values in the range of 0.1-1 V/nH, depending on the coil parameters. These very high-sensitivity values open the possibility for the experimental detection of extremely small inductance changes in the devices. For real microinductive devices, both series resistance and parasitic capacitive components contribute to the decrease of the differential circuit sensitivity. Nevertheless, measurements performed using micro-coils fabricated with relatively high series resistance and coupling parasitic effects have allowed detection of changes in the range of 2 nH. which are compatible with biodetection applications with estimated detection limits below the picomolarity range.
2010-05-04
Detectors de partícules
Biosensors
Magnetic particles
Microsensors
Passive filters
Signal processing equipment
Silicon
(c) IEEE, 2007
Article
IEEE
         

Show full item record

Related documents

Other documents of the same author

Serre, Christophe; Calvo Barrio, Lorenzo; Pérez Rodríguez, Alejandro; Romano Rodríguez, Alberto; Morante i Lleonart, Joan Ramon; Pacaud, Y.; Kögler, Reinhard; Heera, Viton; Skorupa, Wolfgang
Serre, Christophe; Pérez Rodríguez, Alejandro; Romano Rodríguez, Alberto; Morante i Lleonart, Joan Ramon; Kögler, Reinhard; Skorupa, Wolfgang
Casals Guillén, Olga; Haffar, M.; Barcones Campo, Beatriz; Romano Rodríguez, Alberto; Serre, Christophe; Pérez Rodríguez, Alejandro; Morante i Lleonart, Joan Ramon; Godignon, Philippe; Montserrat, Josep; Millan, J.
Pérez, A.; Romano Rodríguez, Alberto; Serre, Christophe; Calvo Barrio, Lorenzo; Cabezas, R.; Morante i Lleonart, Joan Ramon
Garrido Beltrán, Lluís; Samitier i Martí, Josep; Morante i Lleonart, Joan Ramon; Montserrat i Martí, Josep; Domínguez, Carlos (Domínguez Horna)
 

Coordination

 

Supporters