Functionalized 2D Nanomaterial Electrolyte Reversible Conformation
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Solution Overview
Problem
Current 2D materials lack the ability to undergo reversible morphological transformations in response to changes in environmental conditions, limiting their applications in areas such as drug delivery, sensors, and filtration systems.
Innovation Solution
A method and nanomaterial electrolyte comprising modified 2D nanomaterials with functional groups like imine, sulfonic acid, and amine on their surface, which can reversibly change conformation from flat 2D to scrolled 1D forms upon changes in pH, ionic strength, temperature, pressure, and light, allowing for controlled morphological transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 2D materials are used in standard form, then they maintain structural stability, but they cannot undergo reversible morphological transformations in response to environmental changes
Solution Approach 1:
The patent applies parameter changes by modifying the surface charge density of 2D materials through functionalization with charged groups. This allows the material to respond to environmental stimuli (pH, ionic strength, temperature) by changing its conformation between flat 2D and scrolled 1D states, achieving reversible morphological transformation while maintaining structural integrity through controlled parameter variation.
Solution Approach 2:
The patent creates composite structures by functionalizing 2D materials with charged groups and hydrophilic/hydrophobic moieties. This composite approach combines the structural stability of the 2D base material with the responsive properties of the functional groups, enabling reversible conformational changes in response to environmental conditions.
2Ease of manufacture
If traditional methods are used to prepare graphene oxide scrolls, then scrolls can be formed, but the process requires shock cooling by liquid nitrogen followed by freeze-drying or lyophilisation
Solution Approach 1:
The patent replaces complex mechanical and thermal processing methods (shock cooling, freeze-drying, lyophilisation) with a simpler chemical approach. By functionalizing 2D materials with charged groups and adjusting environmental parameters like pH and ionic strength, scrolls can be formed through controlled self-assembly without requiring liquid nitrogen or vacuum freeze-drying equipment.
Solution Approach 2:
The patent simplifies the scroll preparation process by using parameter changes in the aqueous environment (pH, ionic strength, temperature) to control the conformational transition from flat 2D to scrolled 1D structures. This eliminates the need for complex equipment and multi-step procedures while achieving the same morphological transformation.
3Adaptability or versatility
If 2D materials undergo conformational change to form scrolls, then new functionalities are achieved, but the transition requires significant environmental changes
Solution Approach 1:
The patent enables conformational change at mild temperature conditions by functionalizing 2D materials with charged groups that respond to pH and ionic strength changes. The charged functional groups create electrostatic interactions that drive the flat-to-scroll transition without requiring significant temperature variations, making the process more energy-efficient and suitable for temperature-sensitive applications.
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
Enables environmentally friendly, reversible, and versatile morphological changes without requiring large temperature variations or solvents, expanding applications in smart materials, drug delivery, and sensors.
Implementation Method 1
In polyelectrolyte suspensions, for example, the electrostatic interactions are in the origin of their response to temperature and pH changes, and their fine balance is responsible for the reversible morphological transitions from molecular chains (1 D) to globular objects (0D)
Implementation Method 2
From the physical and chemical perspective, the electrical repulsion between the surface charge in a 2D material leads to a flat conformation. By changing the charge content of the dispersion, the surface charge density of a 2D material can be electrically screened
Implementation Method 3
Coulomb and elastic forces tend to increase dimensionality, whereas van der Waals forces tend to reduce it
Implementation Method 4
Coulomb and elastic forces tend to increase dimensionality, whereas van der Waals forces tend to reduce it
Data Source
AI summary
Disclosed herein is a nanomaterial electrolyte formed from a modified two-dimensional nanomaterial having a surface, where the surface is modified by a plurality of functional groups selected from one or more of the group consisting of imine, sulfonic acid, sulfonamide, amine, hydroxyl, carboxylic acid, thiol, and amide on the surface of the modified two-dimensional nanomaterial, where the nanomaterial electrolyte is capable of reversibly adopting a flat two-dimensional conformation or a scrolled 1-dimensional conformation upon a change to its ambient environment. There is also disclosed a method of effecting a change in conformation from one form to the other (and back again).