Nitrocatechol Gelatin Bioadhesive Hydrogel for Conductive Tissue Repair
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing biomaterials lack tunable macroscopic physical properties necessary for diverse biomedical applications, particularly in designing materials with enhanced electron density modulation and electroconductive properties for tissue regeneration.
Innovation Solution
The introduction of nitro-functionality in dopamine molecules to form sutured-nitrocatecholic strands (S-nCAT) and subsequent synthesis of S-nCAT/gelatin hydrogels (S-nCAGE) provides a biologically relevant, electroconductive microenvironment with improved adhesive and mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional biomaterials are used, then material simplicity is maintained, but tunable macroscopic physical properties and electroconductive properties are lacking
Solution Approach 1:
The patent applies parameter changes by systematically varying the nitro-group substitution position (ortho, meta, para) and concentration in dopamine molecules to tune the electron density and macroscopic physical properties of the resulting hydrogels. This allows optimization of conductivity, adhesion, and mechanical properties for different biomedical applications.
Solution Approach 2:
The invention creates composite materials by combining nitro-functionalized dopamine derivatives with gelatin to form hydrogels. This composite approach integrates the electroconductive properties of nitrodopamine with the biocompatibility and structural properties of gelatin, achieving tunable macroscopic properties while maintaining biological relevance.
2Reliability
If nitro-functionality is introduced to enhance electron density modulation, then electroconductive properties are improved, but material complexity increases
Solution Approach 1:
The patent applies local quality by introducing nitro-groups at specific positions (ortho, meta, para) on the dopamine aromatic ring to locally modulate electron density. This targeted modification enhances electroconductive properties at specific molecular sites while maintaining overall material manageability and biological compatibility.
3Strength
If sutured-nitrocatecholic strands are synthesized for enhanced adhesion, then wet tissue adhesion is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-synthesizing nitro-functionalized dopamine derivatives with controlled electron density before incorporating them into the hydrogel formulation. This preliminary functionalization step enables enhanced wet tissue adhesion while simplifying the overall manufacturing process, as the adhesive properties are built into the material structure beforehand rather than requiring complex post-processing.
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
S-nCAGE hydrogels exhibit enhanced wet tissue adhesion, conductivity, and cytocompatibility, supporting tissue regeneration and cellular proliferation, with mechanical properties suitable for biomedical applications.
Implementation Method 1
Nitro (—NO2) is one of such biologically active, chemical functionalities with a large deficit of negative charge, charge which can modulate the electron density of aromatic biomolecules
Implementation Method 2
Particularly for Parkinson's disease, nitro-group acts as a catechol-O-methyltransferase (COMT) inhibitor and slows down levodopa metabolism, balancing the dopamine concentration in the nerval system
Implementation Method 3
the covalent conjugation of nitrocatecholic domains with gelatin backbone, forming the hydrogel networked
Implementation Method 4
S-nCAGE hydrogels exhibit enhanced wet tissue adhesion
Implementation Method 5
S-nCAT assured the delocalization of pi-electron along the macromolecular backbone and introduced electroconductive nature to the S-nCAGE
Data Source
AI summary
A neurotransmitter moiety, dopamine, was chemically modified with a nitro-group to explore its influence on synthesizing a multifunctional biomaterial for therapeutic applications. Chemically, by manipulating the aromatic-electron density. while nitro-group prevented the self-oxidation of catecholic domain. this facilitated the aromatic suturing of nitrocatechol moieties, forming a novel macromolecular structure. Incorporation of the sutured-nitrocatecholic moieties in a gelatin-based hydrogel introduced extended pi-electron delocalization mediated electroconductive microenvironment and maintained its adhesive properties originated from the catecholic domains, forming a multi-functional bioadhesive for tissue repairing. Embodiments of the invention include engineered hydrogels enriched with multi-mode noncovalent interactions and excellent mechano-physical properties that are useful for diverse biomedical applications.