Polyphenol Nanocomplexes for Cell Surface Functionalization
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Solution Overview
Problem
Current methods for functionalizing mammalian cells with biomolecules often result in denaturation, internalization, or damage to the cells, and are time-consuming and specific to particular biomolecules, limiting their therapeutic applications.
Innovation Solution
A nanocomplex system comprising polyphenol molecules, such as tannic acid, and biomolecules that adheres to the surface of mammalian cells without denaturing the biomolecules or causing internalization, allowing for rapid and versatile functionalization of various biomolecules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional methods are used to add biomolecules to cell surface, then biomolecules can be added to cells, but the biomolecules are denatured or deactivated
Solution Approach 1:
The patent uses polyphenol-functionalized nanoparticles as an intermediary carrier to deliver biomolecules to cell surfaces. The nanoparticles mediate the interaction between biomolecules and cells, preventing direct contact that would cause denaturation. The polyphenol functionalization enables controlled attachment to cell surfaces while maintaining biomolecule integrity and activity.
2Ease of manufacture
If conventional methods are used to add biomolecules to cell surface, then biomolecules can be added to cells, but the cells are damaged or altered in undesired ways
Solution Approach 1:
The patent changes key parameters of the delivery system by using polyphenol-functionalized nanoparticles with controlled size, surface charge, and ligand density. These parameter optimizations enable biomolecule delivery at lower concentrations and milder conditions, reducing cell damage and unwanted alterations while maintaining delivery efficiency.
3Ease of manufacture
If conventional methods are used to add biomolecules to cell surface, then biomolecules can be added to cells, but the process is time-consuming and specific to particular biomolecules
Solution Approach 1:
The patent creates a universal polyphenol-functionalized nanoparticle platform that can deliver multiple types of biomolecules (proteins, antibodies, nucleic acids) through a single standardized protocol. This multi-functional system eliminates the need for biomolecule-specific optimization and significantly reduces functionalization time across different biomolecule types.
4Ease of manufacture
If conventional methods are used to add biomolecules to cell surface, then biomolecules can be added to cells, but internalization of biomolecules occurs
Solution Approach 1:
The patent applies local quality control by functionalizing only the surface of nanoparticles with polyphenols, creating a localized interaction zone at the cell surface. This surface-specific functionalization enables biomolecule attachment and cell surface binding without triggering internalization pathways, maintaining biomolecules in their intended extracellular location.
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 system effectively adheres diverse biomolecules to mammalian cells without causing harm, enabling targeted therapeutic delivery and modulation of cellular activity, as demonstrated by specific examples including erythrocyte and macrophage-based delivery systems.
Implementation Method 1
a nanocomplex system that permits a wide array of chemically divergent biomolecules to be readily adhered to mammalian cells
Data Source
AI summary
Described herein are functionalizing nanocomplexes comprising one or more polyphenol molecules; and one or more biomolecules. Further described herein are functionalized cells comprising one or more of the nanocomplexes. In some embodiments, the biomolecules can be therapeutic agents and the functionalized cells can be administered to patients to provide improved delivery (e.g., dosing and specificity) of the therapeutic agent.