Polymer Foam-Supported Supramolecular Gel for Flow Chemistry

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Solution Overview

Problem

Supramolecular gels prepared from low molecular weight gelators are mechanically fragile, limiting their industrial applications, including their use in flow chemistry due to delamination under shear stress.

Innovation Solution

A supramolecular gel is integrated into the pores of an open-cell polymer foam, where nanofibers are anchored, forming a stable and catalytically active hydrogel with enhanced mechanical robustness and enzymatic activity, using enzymes to modify precursor peptides into gelators with lower water solubility, creating a robust catalytic system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If supramolecular gel is prepared from low molecular weight gelators, then catalytic activity is achieved, but mechanical strength deteriorates due to inherent fragility

Engineering Contradiction:
Improvecatalytic activityVSAvoidmechanical strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent creates a composite material by integrating the supramolecular gel into the porous structure of an open-cell polymer foam. The gelator molecules self-assemble within the foam pores, forming a composite structure that combines the catalytic properties of the supramolecular gel with the mechanical strength of the polymer foam support, thereby resolving the contradiction between catalytic activity and mechanical strength.

Inventive Principle:
Principle #40Composite materials

2Productivity

If supramolecular gel is used in flow chemistry, then chemical synthesis capability is improved, but reliability deteriorates due to delamination under shear stress

Engineering Contradiction:
Improvechemical synthesis capabilityVSAvoidstability under flow conditions
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent utilizes the porous structure of open-cell polymer foam as a support matrix for the supramolecular gel. The foam's three-dimensional interconnected pore network provides a rigid framework that anchors the gel, preventing delamination under shear stress while maintaining porosity for reagent diffusion and product flow, thus enabling reliable use in flow chemistry applications.

Inventive Principle:
Principle #31Porous materials

3Reliability

If supramolecular gel is immobilized on planar substrate, then catalytic function is achieved, but mechanical robustness deteriorates

Engineering Contradiction:
Improvecatalytic functionVSAvoidmechanical robustness
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent transitions from immobilizing the supramolecular gel on a two-dimensional planar substrate to integrating it within the three-dimensional porous network of polymer foam. This dimensional change provides the gel with mechanical support from all directions through the foam's interconnected cell structure, significantly enhancing mechanical robustness while preserving catalytic function.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The polymer foam-supported supramolecular gel exhibits stable catalytic activity and mechanical robustness, preventing delamination and maintaining enzymatic activity over time, even under flow conditions, enabling effective use in flow reactors for chemical synthesis and kinetic resolution.

Implementation Method 1

enzymes to modify precursor peptides into gelators with lower water solubility

Methodology Applied
Scientific EffectEnzymatic reaction: Enzyme

Implementation Method 2

non self-assembling peptides (precursors) can be enzymatically transformed into self-assembling ones (gelators) leading to the growth of nanostructures exclusively from the surface

Methodology Applied
Scientific EffectSelf-assembly: Self-Assembly

Implementation Method 3

a catalytic supramolecular gel has applications in chemical synthesis and kinetic resolution, in particular of organic compounds

Methodology Applied
Scientific EffectCatalysis: Catalysis

Data Source

PatentUS11879038B2Supramolecular gel supported on open-cell polymer foam
Publication Date: 2024.01.23 UNIVERSITY OF STRASBOURG
  • US11879038B2 patent drawing
  • US11879038B2 patent drawing
  • US11879038B2 patent drawing

AI summary

The present invention relates to a polymer foam, said polymer foam comprising pores forming an open-cell polymer foam, said polymer foam comprising a supramolecular gel inside pores, and said polymer foam comprising at least one enzyme. The present invention relates to a supramolecular gel; its preparation and its applications, notably in chemical synthesis and kinetic resolution, in particular of organic compounds. The present invention also relates to flow chemistry.