Highly deformable porous membrane culture system and actuation methods for studying the effects of biomechanical stretch on cultured tissue

Patent metadata

Field	Value
Publication number	US-12359155-B2
Application number	US-202117238501-A
Country	US
Kind code	B2
Filing date	Apr 23, 2021
Priority date	Apr 23, 2021
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

The systems and methods of the present disclosure provide highly deformable porous membrane culture systems and actuation methods for studying the effects of biomedical stretch on cultured tissue. A well plate can include a well having a first opening configured to receive an insert coupled to a deformable membrane. The well plate can include a gasket positioned within the well and configured to create a seal between the insert and the well when the insert is positioned in the well. The well plate can include a chamber defined beneath the well, the chamber configured to receive fluid media and to expose the fluid media to a surface of the deformable membrane when the insert is positioned in the well. The well plate can include an actuator configured to stretch the deformable membrane by a target amount of strain.

First claim

What is claimed is:

1. A well plate for actuating cell culture membranes, comprising:
a well comprising a first opening;
an insert comprising a wall and a deformable membrane positioned in the first opening of the well, the insert comprising an opening exposing a first surface of the deformable membrane, the wall of the insert comprising a flexible material coupled to the deformable membrane;
a chamber defined beneath the well, the chamber configured to receive fluid media and to expose the fluid media to a second surface of the deformable membrane positioned in the well, the second surface opposite the first surface; and
an actuator at least partially coupled to the wall of the insert, the actuator configured to deform the flexible material of the wall of the insert to stretch the deformable membrane by an amount of strain.

2. The well plate of claim 1 , further comprising a gasket positioned within the well and configured to create a seal between the insert and the well.

3. The well plate of claim 2 , wherein the gasket further comprises an O-ring and a collar, the collar configured to couple the insert to the well and the O-ring configured to create a seal between the collar and the well.

4. The well plate of claim 1 , wherein a surface of the chamber is defined by a transparent window that provides an optical interface to the chamber and to the second surface of the deformable membrane positioned in the well.

5. The well plate of claim 1 , wherein the well further comprises a connector configured to receive and couple to the insert.

6. The well plate of claim 1 , wherein the actuator comprises a mechanical iris configured to couple to the insert, and to radially stretch the deformable membrane by the amount of strain.

7. The well plate of claim 1 , further comprising:
a second well comprising a second opening;
a second insert coupled to a second deformable membrane positioned in the second opening; and
a second actuator comprising a rim that is similar in size to a boundary of the second deformable membrane of the second insert, and is configured to cause the second deformable membrane to stretch over the rim by a second amount of strain.

8. The well plate of claim 1 , further comprising:
a second well comprising a second opening;
a second insert coupled to a second deformable membrane positioned in the second opening; and
a second actuator comprising a pin configured to press into the second deformable membrane of the second insert, such that the pin deforms the second deformable membrane by a second amount of strain.

9. The well plate of claim 1 , further comprising:
a second well comprising a second opening;
a second insert coupled to a second deformable membrane positioned in the second opening; and
a second actuator comprising a magnet positioned within a predetermined distance from the second insert, such that a magnetic force between the magnet and one or more magnetic particles in the second deformable membrane causes the second deformable membrane to stretch by a second amount of strain.

10. The well plate of claim 1 , wherein the chamber further comprises an inlet port configured to couple to a pressure controller that provides the fluid media at a pressure, the inlet port configured to receive the fluid media such that the fluid media causes the deformable membrane of the insert to stretch by the amount of strain.

11. The well plate of claim 1 , further comprising:
a second well comprising a second opening;
a second insert coupled to a second deformable membrane; and
a second actuator configured to stretch the second deformable membrane by a second amount of strain.

Assignees

• Charles Stark Draper Laboratory Inc

Inventors

• Isenberg Brett
• Charest Joseph
• Williams Corin
• Soonho Ernest Kim
• Pilkenton Morgan
• Davis Patrick
• Marr Elizabeth Ellen
• Vedula Else Marie

Classifications

• C12M25/04 Primary

  in combination with well or multiwell plates, i.e. culture inserts · CPC title

• C12M23/22

  Transparent or translucent parts (glassware for laboratory use B01L3/00) · CPC title

• B01L3/50853

  with covers or lids (closures for test tubes B01L3/50825) · CPC title

• B01L3/50851

  specially adapted for heating or cooling samples · CPC title

• C12M23/34

  Internal compartments or partitions · CPC title