Core-Shell Microneedle Patch for Hair Regeneration
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Solution Overview
Problem
Current hair loss treatments are invasive, costly, and limited by donor shortages, and non-invasive methods for promoting hair regeneration are needed to address the imbalance of hair follicle niches caused by insufficient angiogenesis and oxidative stress.
Innovation Solution
An anti-hair loss and hair growth integrated core-shell microneedle patch is developed, comprising a backing with a core-shell microneedle array where the shell is loaded with nano-enzymes to remove excessive active oxygen and the core contains mesenchymal stem cell-derived exosomes, promoting hair follicle regeneration by stimulating capillary remodeling and releasing exosomes to improve hair growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hair follicle transplantation is used to treat hair loss, then hair regeneration can be achieved, but the treatment becomes invasive, costly, and limited by donor shortage
Solution Approach 1:
The treatment is segmented into two distinct functional components: the shell containing nano-enzymes for oxidative stress relief and the core containing exosomes for hair follicle regeneration. This segmentation allows each component to perform its specific function optimally without requiring invasive surgical procedures, thereby achieving hair regeneration while reducing treatment complexity and cost
Solution Approach 2:
The microneedle patch acts as an intermediary delivery system that combines nano-enzymes and exosomes into a single non-invasive application. This intermediary approach eliminates the need for donor hair transplantation by delivering regenerative components directly to the scalp, reducing both invasiveness and dependency on donor availability
2Object-affected harmful factors
If oxidative stress is present in the hair follicle microenvironment, then hair follicle degradation is accelerated, but removing oxidative stress requires complex intervention
Solution Approach 1:
The nano-enzymes in the shell provide self-service antioxidant protection by automatically neutralizing reactive oxygen species in the hair follicle microenvironment. This self-service mechanism eliminates the need for complex external antioxidant interventions, as the system continuously manages oxidative stress through the catalytic activity of embedded nano-enzymes
Solution Approach 2:
The shell is constructed as a composite material integrating nano-enzymes with a biodegradable matrix, creating a multifunctional structure that simultaneously provides oxidative stress protection and serves as a delivery vehicle for the core exosomes. This composite approach simplifies the overall intervention by combining multiple functions in a single material system
3Quantity of substance
If angiogenesis is insufficient in the bald area, then nutrient transportation to hair follicles is limited, but promoting angiogenesis requires complex vascular intervention
Solution Approach 1:
The exosomes in the core perform preliminary action by pre-conditioning the hair follicle microenvironment with pro-angiogenic factors before actual hair growth occurs. This preliminary preparation of the vascular environment simplifies subsequent regeneration processes, as the blood vessel network is already primed to support incoming hair follicles without requiring complex vascular surgery or intervention
4Device complexity
If a single-function microneedle patch is used, then the structure is simple, but it cannot simultaneously address oxidative stress and promote hair growth
Solution Approach 1:
The microneedle patch employs a nested doll structure where the core (containing exosomes) is embedded within the shell (containing nano-enzymes). This nesting arrangement allows two distinct functional systems to coexist in a single compact structure, enabling simultaneous oxidative stress management and hair follicle regeneration without significantly increasing overall structural complexity
Solution Approach 2:
The patent merges two separate therapeutic functions (oxidative stress relief and hair growth promotion) into a single integrated microneedle patch. By combining the shell and core components into one unified delivery system, the invention achieves multi-functionality while maintaining relative structural simplicity through shared manufacturing and application processes
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 microneedle patch effectively reduces oxidative stress, stimulates angiogenesis, and promotes hair regeneration in mouse models with androgenic hair loss at a low dosing frequency without causing significant skin damage, demonstrating accelerated hair growth and improved hair follicle environment.
Implementation Method 1
the shell substrate material is loaded with nano-enzyme for removing excessive active oxygen
Implementation Method 2
a core-shell microneedle array attached to one side of the backing, the core-shell microneedle array comprises a plurality of microneedles arranged on the backing to form an array
Implementation Method 3
The exosome is an extracellular vesicle secreted by various cell types and loaded with various substances such as proteins, lipids and nucleic acids, and the exosome participates in mediating cellular reactions and biological processes, such as tissue repair and regeneration
Data Source
AI summary
The present invention discloses a nano-armored single cell product, comprising a liposome and probiotics encapsulated by the liposome, wherein the probiotics are fermented to produce gamma-aminobutyric acid (GABA) that alleviates the activation of an inflammatory response in substantia nigra inducedin a MPTP induced PD model, thus mitigating an inflammatory injury to dopaminergic neurons in substantia nigra and having a neuroprotective effect; encapsulation of the probiotics by the liposome can protect the probiotics from strong acids and digestive enzymes in gastric acid.