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Updated: Aug 6, 2026
09:41
Injection of Hydrogel Biomaterial Scaffolds to The Brain After Stroke
Published on: October 1, 2020
De Novo-Designed Peptide-Engineered Multimodal Platform for Post-Ischemic Stroke Tissue Repair
Yue Wang1, Wen Guo2, Zeqi Chen1
1National Engineering Research Center for Biomaterials and College of Biomedical Engineering, Sichuan University, Chengdu, China.
Advanced Materials (Deerfield Beach, Fla.)
|July 25, 2026
Summary
This study developed a smart hydrogel that combines electrical and biochemical signals to repair brain tissue after stroke. The material improved neural function and tissue regeneration in mice.
Area of Science:
- Biomaterials Science
- Neuroscience
- Regenerative Medicine
Background:
- Tissue regeneration in complex diseases like stroke needs advanced materials.
- Current strategies struggle to integrate mechanical, electrical, and biochemical cues.
Purpose of the Study:
- To engineer a computation-driven, multimodal hydrogel as a programmable regulatory node for tissue repair.
- To address MXene instability and create a stable, conductive injectable system.
Main Methods:
- Computationally screened peptide scaffolds and surface-engineered MXene nanosheets.
- Development of an injectable hydrogel with preserved colloidal stability and conductivity.
- In vivo testing in a mouse model of ischemic stroke.
Main Results:
- The hydrogel reconstructed neurovascular unit integrity and suppressed glial scarring.
- Promoted remyelination, synaptic repair, and restored neural electrical signal transmission.
- Achieved functional recovery of neural function in the stroke model.
Conclusions:
- The developed hydrogel represents a promising bioelectronic material for advanced tissue repair.
- Demonstrates a data-driven, bottom-up design paradigm for regenerative materials.
- Highlights Akt2 and phospholipase D signaling pathway in stroke recovery.
