Graphene Substrates for Stem Cell Differentiation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current bone tissue engineering scaffolds require multiple growth factors for human mesenchymal stem cell differentiation, are prone to pathogenic infections, costly, and face challenges with scalability and compatibility with implants.

Innovation Solution

Graphene substrates are used to direct stem cell differentiation in the absence of growth factors, providing a biocompatible and cost-effective scaffold for accelerating stem cell differentiation into bone cell types, which can be used in implants for tissue repair and regeneration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional scaffolds are used for stem cell differentiation, then stem cell differentiation can be achieved, but multiple growth factors are required which increases cost and complexity

Engineering Contradiction:

Improvestem cell differentiationVSAvoidmultiple growth factors required

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and removes the requirement for multiple growth factors from the stem cell differentiation process by using graphene substrates that inherently promote differentiation through their unique physical and chemical properties, thereby simplifying the system while maintaining effectiveness

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the fundamental parameter of the scaffold material from conventional materials to graphene, which possesses unique electrical, mechanical, and surface properties that naturally guide stem cell differentiation without requiring additional growth factor inputs

Inventive Principle:

Principle #35Parameter changes

2Reliability

If conventional scaffolds are used for stem cell differentiation, then differentiation can occur, but the process is costly due to multiple growth factor requirements

Engineering Contradiction:

Improvestem cell differentiationVSAvoidcost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs graphene substrates that can be produced cost-effectively and used as disposable or reusable scaffolds, eliminating the need for expensive growth factors while maintaining stem cell differentiation capability

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The graphene substrate serves itself by providing inherent properties that promote stem cell differentiation without requiring external addition of costly growth factors, making the system self-sufficient and cost-effective

Inventive Principle:

Principle #25Self-service

3Reliability

If conventional scaffolds are used, then stem cell differentiation is possible, but scalability and compatibility with implants remain challenging

Engineering Contradiction:

Improvestem cell differentiationVSAvoidscalability and implant compatibility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The graphene substrate serves multiple functions simultaneously: it provides structural support for scaffolds, promotes stem cell differentiation through its unique properties, ensures biocompatibility with implant materials, and enables scalable manufacturing processes, thereby resolving the adaptability challenges

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10316290B2Method for controlling differentiation of stem cells using graphene substrates

Publication Date: 2019.06.11 NATIONAL UNIVERSITY OF SINGAPORE

AI summary

The invention relates to methods for directing differentiation of stem cells comprising graphene. In additional embodiments, the invention relates to methods for repairing and improving bone tissue functions comprising accelerating differentiation in stem cell growth by exposing stem cells to graphene and transplanting the graphene with the exposed stem cells in the tissue at the site of repair.