公开(公告)号：US11744915B2

公开(公告)日：2023-09-05

申请号：US17906704

申请日：2021-03-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mikhail L. Pekurovsky ,  Matthew S. Stay ,  Hannah J. Loughlin ,  Kevin T. Reddy ,  Henrik B. Van Lengerich ,  Ann M. Gilman ,  Matthew R.D. Smith

IPC: A61L15/58 ,  B01L3/00

CPC classification number: A61L15/58 ,  B01L3/5023 ,  B01L3/502738

Abstract: Diagnostic devices for quantitative or qualitative analysis of a sample fluid including an analyte include at least two portions made from a hydrophilic material. The planar portions are stacked on each other and each occupy a different and substantially parallel plane to form a three-dimensional structure. At least one of the planar portions includes a hydrophobic region formed by applying a low surface energy material that extends through a thickness of the substrate portion from a first major surface to a second major surface thereof. The hydrophilic regions in the overlying substantially parallel substrate portions can be aligned with each other such that a fluid is passively transported between adjacent hydrophilic regions to provide a sample flow path between adjacent substrate portions.

公开(公告)号：US20230120911A1

公开(公告)日：2023-04-20

申请号：US17906704

申请日：2021-03-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mikhail L. Pekurovsky ,  Matthew S. Stay ,  Hannah J. Loughlin ,  Kevin T. Reddy ,  Henrik B. van Lengerich ,  Ann M. Gilman ,  Matthew R.D. Smith

IPC: A61L15/58 ,  C09J133/08

Abstract: Diagnostic devices for quantitative or qualitative analysis of a sample fluid including an analyte include at least two portions made from a hydrophilic material. The planar portions are stacked on each other and each occupy a different and substantially parallel plane to form a three-dimensional structure. At least one of the planar portions includes a hydrophobic region formed by applying a low surface energy material that extends through a thickness of the substrate portion from a first major surface to a second major surface thereof. The hydrophilic regions in the overlying substantially parallel substrate portions can be aligned with each other such that a fluid is passively transported between adjacent hydrophilic regions to provide a sample flow path between adjacent substrate portions.

公开(公告)号：US20230138304A1

公开(公告)日：2023-05-04

申请号：US17906868

申请日：2021-03-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mikhail L. Pekurovsky ,  Matthew S. Stay ,  Henrik B. van Lengerich ,  Ann M. Gilman ,  Sonnie L. Hubbard ,  Hannah J. Loughlin ,  Satinder K. Nayar ,  Kevin T. Reddy ,  Timothy J. Rowell ,  Matthew R.D. Smith ,  Ronald P. Swanson ,  Daniel J. Theis ,  Deniz Yuksel Yurt

IPC: B01L3/00

Abstract: A diagnostic device includes a sensor stack with multiple panels of a porous material disposed in planes parallel to one another and in face-to-face contact with each other. At least a portion of the panels of the porous material include hydrophobic regions and hydrophilic regions configured to provide a sample flow path for migration of a fluid sample through the sensor stack from one panel to another in the hydrophilic regions. A wicking layer is on a major surface of the sensor stack.