Bijels And Methods Of Making The Same

Patent metadata

Field	Value
Publication number	US-2022195171-A1
Application number	US-202117534500-A
Country	US
Kind code	A1
Filing date	Nov 24, 2021
Priority date	Jun 1, 2015
Publication date	Jun 23, 2022
Grant date	—

Abstract

A method of making a bijel includes dispersing surface-active nanoparticles in a ternary liquid mixture. The ternary liquid mixture includes a hydrophilic liquid, a hydrophobic liquid, and a solvent. The ternary liquid mixture is contacted with water. A bijel includes a stable mixture of two immiscible liquids separated by an interfacial layer of colloidal particles. The bijel has temperature-independent stability, and the domain sizes are below one micrometer.

First claim

What is claimed:

1 . A bijel, the bijel made according to
dispersing surface-active nanoparticles into a monophasic ternary liquid mixture to give rise to a loaded mixture,
wherein the monophasic ternary liquid mixture comprises a hydrophilic liquid, a hydrophobic liquid, and a solvent,
contacting the ternary liquid mixture with water,
wherein the surface-active nanoparticles are wettable equally well by the hydrophilic liquid and the hydrophobic liquid; and
contacting the loaded mixture with water so as to initiate phase separation through spinodal decomposition and induce mass transfer of the solvent and give rise to the bijel.

2 . A fiber scaffold for tissue engineering, comprising the bijel of claim 1 .

3 . A cosmetic composition, comprising the bijel of claim 1 .

4 . A food composition, comprising the bijel of claim 1 .

5 . A filter comprising the bijel of claim 1 .

6 . A fog harvesting mesh comprising the bijel of claim 1 A cross-flow reactor comprising the bijel of claim 1 .

8 . A bijel comprising:
a stable mixture of two immiscible liquids separated by an interfacial layer of colloidal particles, wherein the bijel has temperature-independent stability, and wherein the bijel has domain sizes of below one micrometer.

9 . The bijel of claim 8 , wherein the bijel is a bijel fiber or a bijel membrane.

10 . The bijel of claim 8 , wherein one of the immiscible liquids is a hydrophilic liquid and the other of the immiscible liquids is a hydrophobic liquid.

11 . The bijel of claim 10 , wherein the colloidal particles comprise surface-active nanoparticles are wettable equally well by the hydrophilic liquid and the hydrophobic liquid.

12 . The bijel of claim 10 , wherein at least one of the hydrophilic liquid and the hydrophobic liquid comprises a polymer.

13 . The bijel of claim 8 , wherein the domain sizes are between 1 micrometer and 300 nm.

14 . The bijel of claim 13 , wherein the domain sizes are between 1 micrometer and 500 nm.

15 . The bijel of claim 8 , wherein the hydrophobic liquid is an oil.

16 . The bijel of claim 8 , wherein the hydrophilic liquid is water.

17 . The bijel of claim 8 , wherein the bijel further comprises a solvent.

18 . The bijel of claim 17 , wherein the solvent is an alcohol.

19 . The bijel of claim 8 , wherein the bijel is in the form of a fiber.

20 . The bijel of claim 8 , wherein the bijel is in the form of a membrane.

Assignees

• Univ Pennsylvania

Inventors

• Haase Martin F
• Lee Daeyeon
• Stebe Kathleen J

Classifications

• C08F2/44

  Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers · CPC title

• A61K8/25

  Silicon; Compounds thereof · CPC title

• C08L2203/12

  used for fibers · CPC title

• A61K2800/612

  By organic compounds · CPC title

• A23P30/00

  Shaping or working of foodstuffs characterised by the process or apparatus (A23P10/00, A23P20/00 take precedence) · CPC title