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Neurulation

Neurulation

Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the anterior...

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Engineered 3D Silk-collagen-based Model of Polarized Neural Tissue

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Conductive Nerve Conduits With Orientated Topological Structures From Ice-Templating Technology.

Hui Zhang¹, Kaichen Wang¹, Dongyu Xu¹

¹Department of Otolaryngology Head and Neck Surgery Nanjing Drum Tower Hospital School of Biological Science and Medical Engineering Southeast University Nanjing China.

|July 7, 2025

Summary

This summary is machine-generated.

Researchers developed conductive nerve guidance conduits (NGCs) using ice-templating and carbon nanotubes to enhance peripheral nerve regeneration and motor function recovery in rats.

Keywords:

conductivity ice‐templating nerve guidance conduits nerve regeneration topological structure

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Published on: January 10, 2018

Area of Science:

Biomaterials Science
Regenerative Medicine
Neuroscience

Background:

Peripheral nerve injuries pose significant challenges to motor function recovery.
Developing effective artificial nerve conduits is crucial for nerve regeneration.
Optimizing conduit microstructures and functions enhances therapeutic outcomes.

Purpose of the Study:

To present a conductive nerve guidance conduit (NGC) with oriented topological structures for improved peripheral nerve regeneration.
To investigate the potential of ice-templating technology combined with conductive materials for nerve repair.

Main Methods:

Utilized ice-templating technology with a temperature gradient to create oriented structures.
Incorporated conductive carbon nanotubes (CNTs) and methacrylated gelatin into the conduit matrix.
Loaded the conduits with nerve growth factors to support cell growth.
Constructed rat models with long-segment sciatic nerve defects to evaluate conduit efficacy.

Main Results:

The prepared NGCs exhibited unique oriented structures and excellent conductivity.
The conduits effectively directed neurite extension and promoted nerve cell differentiation and growth.
Significant improvements in injured nerve regeneration and motor function recovery were observed in rat models.

Conclusions:

The developed conductive NGCs show practical application value for peripheral nerve regeneration.
The combination of oriented structures, CNT conductivity, and growth factors enhances therapeutic potential.
This approach offers a promising strategy for treating peripheral nerve injuries.