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Related Concept Videos

Overview of Regeneration and Repair01:19

Overview of Regeneration and Repair

Regeneration and repair processes are critical in healing damages caused by injury, disease, and aging. In regeneration, the damaged tissue is entirely replaced with new growth that restores the original architecture and function. In contrast, tissue repair usually results in a fixed tissue architecture involving scar formation. Scars generally do not reestablish tissue function and may also exhibit structural abnormalities at the injury site.
Regeneration
All animals have varying degrees of...
Healing I: Introduction01:11

Healing I: Introduction

Healing is the physiological process by which the body restores the integrity and function of damaged tissues following injury. It involves a coordinated interplay of cellular proliferation, extracellular matrix remodeling, and growth factor signaling. The extent and nature of the tissue damage determine whether healing occurs by resolution, regeneration, or replacement.ResolutionResolution represents the most complete form of healing, occurring when the injury is minimal and tissue...
Clinical Applications of Epidermal Stem Cells01:19

Clinical Applications of Epidermal Stem Cells

Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own EpiSCs...
Healing II: Complications01:24

Healing II: Complications

Complications during healing arise when tissue repair is altered by local or systemic factors. These changes involve abnormal collagen deposition, altered biomechanics, and reduced vascular supply, impairing restoration of normal structure and function.Loss of FunctionScar tissue differs significantly from the original tissue it replaces. In the skin, fibrosis lacks adnexal structures such as hair follicles, sebaceous glands, and sweat glands. Their absence reduces tactile sensitivity, impairs...
Phases of Wound Repair01:28

Phases of Wound Repair

Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...

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Updated: Jun 5, 2026

A Full Skin Defect Model to Evaluate Vascularization of Biomaterials In Vivo
07:56

A Full Skin Defect Model to Evaluate Vascularization of Biomaterials In Vivo

Published on: August 28, 2014

Self-healing biomaterials.

Alice B W Brochu1, Stephen L Craig, William M Reichert

  • 1Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, USA.

Journal of Biomedical Materials Research. Part A
|December 21, 2010
PubMed
Summary
This summary is machine-generated.

This review introduces self-healing materials for biomaterials applications. It categorizes healing approaches and discusses challenges for developing advanced self-healing biomaterials.

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A Full Skin Defect Model to Evaluate Vascularization of Biomaterials In Vivo
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Preparation of Chitosan-based Injectable Hydrogels and Its Application in 3D Cell Culture
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Area of Science:

  • Materials Science
  • Biomedical Engineering

Background:

  • Biomedical implants face mechanical loading and failure in vivo.
  • Conventional composites offer limited protection against material failure.

Purpose of the Study:

  • Introduce the biomaterials community to self-healing materials.
  • Suggest modifications of self-healing approaches for novel biomaterials.
  • Discuss design criteria for self-healing biomaterials, considering toxicity and biocompatibility.

Main Methods:

  • Review of self-healing methods for combating mechanical failure in materials.
  • Taxonomic classification of self-healing materials into zeroth, first, and second generations.
  • Discussion of technical optimization and commercial viability.

Main Results:

  • First-generation self-healing materials "halt" and "fill" damage.
  • Second-generation self-healing materials aim to "fully restore" material structure.
  • First-generation approaches are likely to see earlier commercial use due to simpler implementation.

Conclusions:

  • Self-healing materials offer a promising avenue for enhancing biomaterial longevity.
  • Optimization for biomaterials requires addressing toxicity and biocompatibility alongside mechanical performance.
  • Further research is needed to overcome technical hurdles for widespread commercial adoption.