Organ mimic device with microchannels and methods of use and...

C - Chemistry – Metallurgy – 12 – M

Patent

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C12M 3/06 (2006.01) C12N 5/07 (2010.01) B01L 3/00 (2006.01)

Patent

CA 2730928

System and method includes a body having a central microchannel separated by one or more porous membranes. The membranes are configured to divide the central microchannel into a two or more parallel central microchannels, wherein one or more first fluids are applied through the first central microchannel and one or more second fluids are applied through the second or more central microchannels. The surfaces of each porous membrane can be coated with cell adhesive molecules to support the attachment of cells and promote their organization into tissues on the upper and lower surface of the membrane. The pores may be large enough to only permit exchange of gases and small chemicals, or to permit migration and transchannel passage of large proteins and whole living cells. Fluid pressure, flow and channel geometry also may be varied to apply a desired mechanical force to one or both tissue layers.

L'invention concerne un système et un procédé faisant intervenir un corps doté dun micro-canal central partagé par une ou plusieurs membranes poreuses. Les membranes sont configurées de façon à diviser le micro-canal central en au moins deux micro-canaux centraux parallèles, un ou plusieurs premiers fluides étant appliqués à travers le premier micro-canal central et un ou plusieurs deuxièmes fluides étant appliqués à travers le deuxième et éventuellement les autres micro-canaux centraux. Les surfaces de chaque membrane poreuse peuvent être revêtues de molécules dadhérence cellulaire afin de soutenir laccrochage de cellules et de favoriser leur organisation en tissus sur les surfaces supérieure et inférieure de la membrane. Les pores peuvent être d'un taille ne permettant que léchange de gaz et de composés chimiques de petite taille, ou permettant la migration et le passage entre canaux de protéines de grande taille et de cellules vivantes entières. Il est également possible de faire varier la pression du fluide, son débit et la géométrie des canaux afin dappliquer une force mécanique souhaitée à une couche ou aux deux couches de tissu.

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