PDMS (Polydimethylsiloxane) Microfluidic Chip Molding for Love Wave Biosensor - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Integrated Circuits and Systems Année : 2010

PDMS (Polydimethylsiloxane) Microfluidic Chip Molding for Love Wave Biosensor

Résumé

We present the development of new Polydimethylsiloxane (PDMS) chips, which are coupled with Love acoustic wave sensors to realize a detection cell of bio-organisms in liquid media. Three generations of biocompatible PDMS chips have been developed. Built-in thermistors allow a thermal control (±0.05°C). Unlike the usual assemblies, this chip is maintained by pressure on the sensor and not sticked on its surface. This technique makes it entirely removable and cleanable. Therefore, the surface of the sensor can be functionalized or regenerated. The realization of these chips is quick and inexpensive.We here outline the development of these different cells and present characteristics of the resulting microsensors, depending on the chip configuration. Real-time responses during antibodies immobilization are presented and analyzed. Antibodies at typical concentration of 45μg/ml are successfully fast detected, with response times from 350s for static down to 90s for dynamic detection setup, with similar sensitivity. Discussions on the mechanical fluid behaviour at the near sensor surface allow to better understand these results and to investigate further developments aiming at improving the quality of the fluid stream in order to even increase future sensor characteristics.
Fichier non déposé

Dates et versions

hal-00548740 , version 1 (20-12-2010)

Identifiants

Citer

Hakim Tarbague, Jean-Luc Lachaud, Serge Destor, Luc Vellutini, Jean-Paul Pillot, et al.. PDMS (Polydimethylsiloxane) Microfluidic Chip Molding for Love Wave Biosensor. Journal of Integrated Circuits and Systems, 2010, 5 (2), pp.125-133. ⟨10.1149/1.3183735⟩. ⟨hal-00548740⟩
170 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More