초록 ▼

A reaction vessel, test device, and method of detection or measurement are disclosed, featuring the use of at least two operatively connected zones formed by transport surfaces spaced apart throughout most of the zones a capillary distance. The zones are fluidly connected by meniscus control means e

A reaction vessel, test device, and method of detection or measurement are disclosed, featuring the use of at least two operatively connected zones formed by transport surfaces spaced apart throughout most of the zones a capillary distance. The zones are fluidly connected by meniscus control means effective to stop capillary flow of the liquid from one zone to the other, until an externally generated actuation pressure is applied.

대표청구항 ▼

A method for interacting with a reagent a material contained in a liquid, comprising the steps of (a) filling with liquid a first zone of a device comprising two adjacent zones fluidly connected by a passageway, both of said zones comprising opposed liquid transport surfaces, two of said surfaces be

A method for interacting with a reagent a material contained in a liquid, comprising the steps of (a) filling with liquid a first zone of a device comprising two adjacent zones fluidly connected by a passageway, both of said zones comprising opposed liquid transport surfaces, two of said surfaces being spaced apart a distance that is effective to induce capillary flow of said introduced liquid at least in the portion of said first zone contiguous to said passageway, and in said second zone, at least one of said zones further including said reagent; (b) retaining the liquid within said first zone while the reagent interacts with said material; and thereafter, (c) applying to the liquid in said first zone an externally generated pressure in an amount sufficient to force the liquid to start flowing under capillary attraction into said second zone, whereby the liquid flows into the second zone.