Macrocyclic Derivative Amphiphilic Self-Assembly for Drug Delivery
Solution Overview
Problem
There is a need for a macrocyclic derivative with tailored amphiphilicity that can self-assemble in aqueous solutions to form various assemblies for delivering a wider range of chemical and biological compounds, while maintaining effective water solubility and stability.
Innovation Solution
A macrocyclic derivative with a primary hydrophilic side and a secondary side comprising both hydrophilic and lipophilic groups, allowing for the formation of bilayer vesicles, micelles, and nanoparticles, enabling the delivery of both hydrophilic and lipophilic compounds by selectively modifying the primary side for targeting and encapsulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If macrocyclic derivatives are modified with both hydrophilic and lipophilic groups to enhance amphiphilicity and delivery capability, then the ability to deliver a wider range of compounds is improved, but the complexity of molecular design and synthesis increases
Solution Approach 1:
The patent applies local quality by creating distinct hydrophilic and lipophilic regions within the macrocyclic derivative structure. The macrocycle is modified to have specific positions occupied by hydrophilic groups (R1) and lipophilic groups (R2, R3), creating localized functional zones that enable simultaneous interaction with both aqueous and lipophilic environments, thereby enhancing delivery capability without requiring complete molecular redesign
Solution Approach 2:
The macrocyclic derivative is designed to perform multiple functions: the hydrophilic primary side enables water solubility and interaction with aqueous compounds, while the lipophilic secondary side enables interaction with lipophilic compounds. This multi-functional design allows a single derivative structure to deliver both hydrophilic and lipophilic compounds, reducing the need for multiple specialized molecules
2Stability of the object's composition
If the hydrophilic-hydrophobic balance is optimized to improve water solubility and self assembly, then the stability of assemblies in aqueous solution is improved, but the range of deliverable compounds is limited
Solution Approach 1:
The patent creates localized hydrophilic and lipophilic regions within the macrocyclic structure, allowing the molecule to maintain overall amphiphilic character while having specific zones optimized for different interactions. This local differentiation enables the assembly to remain stable in aqueous solutions while still being able to encapsulate both hydrophilic and lipophilic compounds
Solution Approach 2:
The macrocyclic derivative functions as a composite molecular structure combining both hydrophilic and lipophilic characteristics within a single molecule. This composite nature allows the assembly to simultaneously interact with aqueous environments and encapsulate diverse compound types, expanding the range of deliverable compounds while maintaining assembly stability
3Ease of operation
If the primary side is made hydrophilic to improve water solubility and accessibility for modification, then the ease of modification after assembly is improved, but the lipophilic character of the molecule is reduced
Solution Approach 1:
The patent segments the macrocyclic derivative into distinct functional sides: a hydrophilic primary side (R1 groups) that provides water solubility and chemical accessibility for modification, and a lipophilic secondary side (R2, R3 groups) that provides lipophilic character and compound encapsulation capability. This segmentation allows each side to optimize its specific function without compromising the overall amphiphilic balance
Solution Approach 2:
The patent applies local quality by concentrating hydrophilic properties at the primary side and lipophilic properties at the secondary side. This spatial differentiation of molecular properties allows the primary side to be optimized for modification accessibility while the secondary side maintains the necessary lipophilic character for amphiphilic balance and compound delivery
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 derivative effectively self-assembles in aqueous solutions to form diverse assemblies, enhancing the delivery of a broader spectrum of compounds by optimizing amphiphilicity, solubility, and molecular shape, facilitating targeted delivery and improved interaction with biological membranes.
Implementation Method 1
The macrocyclic derivative of the invention can self assemble with other macrocyclic derivatives of this type to form a number of different types of assemblies in aqueous solvent
Implementation Method 2
The resultant derivatives are generally capable of forming types of assemblies expected of amphiphilic derivatives
Implementation Method 3
R1 and R3 provide groups which are polar and/or capable of hydrogen bonding
Implementation Method 4
R1 and one of R2 or R3 are hydrophilic groups... R1 provides groups which are polar
Implementation Method 5
the other of R2 or R3 is a lipophilic group comprising one or more of an aliphatic chain, an alicyclic, an aromatic, and a heterocyclic group
Data Source
Figure 1~2
Figure 3
AI summary
The present invention is directed to a macrocyclic derivative which is formed by modification of a macrocycle. The invention further relates to assemblies formed by the self-assembly of such macrocyclic derivatives in aqueous solvent, and includes bilayer vesicles, micelles, monolayers, nanoparticles, colloidal assemblies and surface-coated assemblies.