Abstract: An analysis membrane of a microfluidic device, said membrane being made in one piece from a liquid-diffusing absorbent material of glass fiber-based composition, said analysis membrane including: at least one zone termed depositing zone, at least one zone termed reaction zone, in which at least one reagent is adsorbed directly to said glass fiber liquid-diffusing material, or indirectly by virtue of a coupling agent, and channels which ensure a fluidic communication between these depositing zone(s) and reaction zone(s), and that at least one reaction zone is circumscribed in a space of the analysis membrane, termed slowed diffusion space, inside which the channels which arrive upstream and/or the channels which depart again downstream: extend into one or more channels of smaller length, and/or extend into one or more channels of smaller width, and/or extend into one or more channels comprising at least one portion having a winding path.

Abstract: A device for preparing and/or treating a biological sample including an assembly of storage chambers and/or reaction chambers intended for receiving a fluid, the chambers being separated by walls so as to form an assembly of adjacent chambers. The device includes a base and a drawer including the assembly of adjacent chambers, the drawer being movable in relation to the base, the drawer including a contact surface connected to first means for establishing fluid communication connected to the inside of at least one chamber, the contact surface of the drawer being intended to be positioned facing a contact surface of the base including at least one position at which second means for fluid communication connected to detection means are placed.

Abstract: A device for preparing and/or treating a biological sample including an assembly of storage chambers and/or reaction chambers intended for receiving a fluid, the chambers being separated by walls so as to form an assembly of adjacent chambers. The device includes a base and a drawer including the assembly of adjacent chambers, the drawer being movable in relation to the base, the drawer including a contact surface connected to first means for establishing fluid communication connected to the inside of at least one chamber, the contact surface of the drawer being intended to be positioned facing a contact surface of the base including at least one position at which second means for fluid communication connected to detection means are placed.