SOLID-LIQUID OPERATIONS IN MICROCHANNELS - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2008

SOLID-LIQUID OPERATIONS IN MICROCHANNELS

Résumé

This paper deals with solid-liquid operations in microchannels. Polymerisation processes have developed in microreactors. But once droplets are polymerized, further operations are needed in order to obtain more complex structures. A microparticle management unit system, completely built with Plexiglas plates and chromatography capillary tubing, is presented here. The device includes droplet generation, polymerisation and microparticles flow manipulation. These three different process operations are connected thanks to larger capillaries and glue without leakage or clogging. After droplets polymerisation, this management unit under evaluation is either able to increase or reduce distance between microparticles or inject or withdraw liquids by using secondary channels and pumps. With 180 microns inner diameter capillaries, monodisperse microparticles are obtained with different size and shape. They are either round or bullet-shaped and in the range of 130 to 200 microns. Carrier fluid withdrawal is studied and flow manipulation is lightly different with particles or droplets. Nevertheless, distance between particles can easily be regulated until particles touch each other. Fluid injection is tested with miscible or non-miscible liquids but only miscible fluid appears to be effective in order to change solvent around particles. The number of secondary channels and parameters of aspiration necessary to change carrier fluid have been determined.
Fichier principal
Vignette du fichier
MICROFLU2008-78.pdf (1.04 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04603865 , version 1 (06-06-2024)

Identifiants

  • HAL Id : hal-04603865 , version 1

Citer

Alain Marcati, Laurent Prat, Christophe Serra. SOLID-LIQUID OPERATIONS IN MICROCHANNELS. Microfluidics 2008, Dec 2008, Bologna, Italy, Italy. ⟨hal-04603865⟩
10 Consultations
37 Téléchargements

Partager

Gmail Mastodon Facebook X LinkedIn More