Systems and methods for reaction and transport engineering via cellular fluidics

Patent metadata

Field	Value
Publication number	US-12251697-B2
Application number	US-202017097480-A
Country	US
Kind code	B2
Filing date	Nov 13, 2020
Priority date	Aug 23, 2019
Publication date	Mar 18, 2025
Grant date	Mar 18, 2025

Abstract

The present disclosure relates to an engineered, additively manufactured, microfluidic cellular structure formed from a plurality of cells, wherein the cells are each formed from a plurality of interconnected elements. The cells have voids and each cell is open at upper ends thereof. The cells each communicate at a point below its upper end with a common channel. The cells are each configured to accept a fluid and operate to channel the fluid into the common channel and to hold the fluid received therein for later selective withdrawal from the structure.

First claim

What is claimed is:

1. An engineered, additively manufactured, integrated microfluidic cellular lattice apparatus, the apparatus comprising:
a plurality of tessellated, three dimensional cells having a plurality of interconnected elements to define repeating, connected but distinct volumes one next to another, each one of said plurality of tessellated, three dimensional cells having a three-dimensional volume configured to receive a quantity of a fluid at a first end thereof and to hold the quantity of fluid separate from other ones of the plurality of tessellated, three dimensional cells;
a common structural channel connected to a subplurality of the plurality of interconnected elements and fluidically connected to the plurality of tessellated, three-dimensional cells at a second end of each of the plurality of tessellated, three-dimensional cells, the common structural channel providing a fluid flow pathway to channel fluid flow perpendicularly to a flow of fluid through the plurality of tessellated, three dimensional cells to channel fluid, out from the plurality of tessellated, three dimensional cells;
each one of the plurality of tessellated, three dimensional cells being directly interconnected to another one of the plurality of tessellated, three dimensional cells and having pores and the plurality of tessellated, three dimensional cells being open at the first ends, and the plurality of tessellated, three dimensional cells fluidically connected at the second ends to the common structural channel; and
each one of the plurality of tessellated, three dimensional cells is configured to accept the fluid at said first end and operating to channel the fluid into the common structural channel and to hold the fluid in the common structural channel.

2. The apparatus of claim 1 , wherein the plurality of tessellated, three dimensional cells are directly connected to one another by wall portions of common ones of said plurality of interconnected elements, which form common wall portions.

3. The apparatus of claim 2 , wherein the plurality of tessellated, three dimensional cells are connected thereby forming a contiguous arrangement.

4. The apparatus of claim 1 , wherein each one of the plurality of interconnected elements of the plurality of tessellated, three dimensional cells comprises a strut, and wherein the struts are interconnected.

5. The apparatus of claim 4 , wherein the interconnected struts have differing diameters configured to provide a selective pressure drop across a length of the apparatus, to cause a fluid contained in the plurality of tessellated, three dimensional cells to flow in a predetermined direction through the common structural channel of the additively manufactured, integrated microfluidic cellular apparatus.

6. The apparatus of claim 2 , wherein the common wall segments portions of the plurality of tessellated, three dimensional cells have differing radiuses of curvature configured to provide a selective pressure drop across a length of the apparatus, to thus cause fluid contained in the plurality of tessellated, three dimensional cells of the additively manufactured, integrated microfluidic cellular apparatus to flow through the plurality of tessellated, three dimensional cells in a predetermined direction.

7. A method for forming an engineered, additively manufactured, microfluidic cellular structure for selectively channeling a fluid deposited in the structure, the method comprising:
forming a plurality of interconnected tessellated, three dimensional cells to create voids therewithin, the voids configured to each receive a quantity of the fluid therein at a first end of each of the voids;
further forming the plurality of interconnected tessellated, three dimensional cells with a plurality of interconnected struts and a plurality of wall segments connected to select ones of the plurality of struts, such that each one of said plurality of tessellated, three dimensional cells defines one of the voids;
further forming each one of the plurality of tessellated, three dimensional cells such that at least one of:
the plurality of interconnected struts have differing diameters; or
the plurality of wall segments have differing radiuses of curvature; and

further forming the plurality of interconnected tessellated, three dimensional cells such that at least one of the differing diameters or the differing radiuses of curvature are arranged within the structure to cause a pressure drop between the first end of each of the voids and a second portion of the engineered, additively manufactured, microfluidic cellular structure.

8. The method of claim 7 , wherein each said cell of the plurality of interconnected tessellated, three dimensional cells has a plurality of interconnected struts having differing diameters and a plurality of wall segments having differing radiuses of curvature.

9. The method of claim 7 , further comprising providing an elongated channel fluidically connected to at least select ones of the plurality of interconnected tessellated, three dimensional cells, to enable the quantity of fluid to be moved therethrough from the first end of each of the voids to the second portion of the engineered, additively manufactured, microfluidic cellular structure.

Assignees

• L Livermore Nat Security Llc

Inventors

• Dudukovic Nikola
• Baker Sarah
• Cahill James Timothy
• Davis Jonathan Tesner
• Deotte Joshua R
• Dubbin Karen Ruth
• Duoss Eric B
• Fong Erika Jo
• Gemeda Hawi Bacha
• Qian Fang

Classifications

• Y10T428/249953

  Composite having voids in a component [e.g., porous, cellular, etc.] · CPC title

• B01L2400/088

  by specific surface properties · CPC title

• B01L2400/086

  using baffles or other fixed flow obstructions · CPC title

• B29C64/129

  characterised by the energy source therefor, e.g. by global irradiation combined with a mask · CPC title

• B01L2400/0406

  capillary forces · CPC title