Fibrous Polypeptide Bioscaffold for Neural Cell Delivery

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Solution Overview

Problem

Current neural tissue engineering strategies face challenges in effectively treating injuries and diseases of the nervous system, particularly due to the inability of lesioned axons to regenerate and the sub-optimal outcomes for peripheral nerve injuries.

Innovation Solution

The development of fibrous polypeptide-based bioscaffolds containing minocycline hydrochloride (MH) for the delivery of therapeutics to neural cells, which are fabricated using electrospinning to create aligned fibers that support neuronal growth and regeneration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional TE scaffolds are used for neural tissue repair, then basic structural support is provided, but effective treatment of nervous system injuries and diseases is not achieved

Engineering Contradiction:

Improveeffectiveness in treating nervous system injuriesVSAvoidability to promote axonal regeneration and neuronal differentiation

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple functional components into a single scaffold system: polypeptide fibers provide structural support, minocycline hydrochloride delivers neuroprotective therapeutic effects, and the aligned architecture guides axonal regeneration. This merging of structural and therapeutic functions resolves the contradiction between basic support and effective treatment.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The scaffold employs localized functional differentiation through aligned fiber architecture that specifically guides axonal growth in particular directions, and incorporates minocycline at controlled concentrations to provide targeted neuroprotection. This local quality enhancement addresses the versatility deficiency of conventional scaffolds.

Inventive Principle:

Principle #3Local quality

2Reliability

If aligned fibrous scaffolds are used to support neuronal growth, then directional neural tissue repair is promoted, but the complexity of scaffold fabrication increases

Engineering Contradiction:

Improvedirectional neural tissue repair capabilityVSAvoidfabrication complexity of aligned fiber scaffold

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs electrospinning technology to replace complex mechanical alignment methods. The electrospinning process uses electric field forces to directly deposit aligned fibers during fabrication, eliminating the need for subsequent mechanical alignment steps and reducing overall fabrication complexity while maintaining directional repair capabilities.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If minocycline hydrochloride is incorporated into the scaffold for therapeutic delivery, then neuronal cell viability and differentiation are enhanced, but the manufacturing precision requirements increase

Engineering Contradiction:

Improveneuronal cell viability enhancementVSAvoidcontrol of active compound concentration in fibers

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent incorporates minocycline hydrochloride into the polymer solution before the electrospinning process, allowing uniform distribution and controlled release kinetics to be established during fiber formation. This preliminary incorporation simplifies subsequent manufacturing steps while ensuring precise therapeutic delivery.

Inventive Principle:

Principle #10Preliminary action

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 use of these bioscaffolds enhances neuronal cell viability and differentiation, promotes neurite outgrowth, and supports directional neural tissue repair, demonstrating potential for improving outcomes in previously untreatable nervous system conditions.

Implementation Method 1

fabricated using electrospinning to create aligned fibers

Methodology Applied

Scientific EffectElectrospinning: Electrohydrodynamics

Data Source

PatentUS20250041478A1Fibrous polypeptide-based bioscaffold delivery of therapeutics to neural cells

Publication Date: 2025.02.06 THE REGENTS OF THE UNIVERSITY OF COLORADO

AI summary

Disclosed herein are compositions and methods for aiding in the treatment of various reversible and irreversible neurodegenerative diseases. In some embodiments, poly(γ-benzyl-L-glutamate)(PBG) and/or its hydrolyzed copolymer (poly(γ-benzylglutamate) 80-r-(γ-glutamic acid)20)(PBGA) may be used to make the disclosed fibrous scaffolds, for one example by use of an electrospinning process. The disclosed materials may be biocompatible molecules, for example polypeptides. In some embodiments the disclosed materials may contain a neurotransmitter, in one embodiment glutamate. In some embodiments, the disclosed scaffolds may consist of one or more aligned fibers. In some embodiments, the scaffold may include one or more active compounds. In some embodiments, the active compound may be neuroprotective, for example a neuroprotective antibiotic. In some embodiments, the active compound may be minocycline hydrochloride (MH). In many embodiments, the disclosed scaffold may aid in stabilizing the active compound.