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Related Concept Videos

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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...
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Related Experiment Video

Updated: Jun 14, 2025

Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management
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Facile Size Tunable Skin-Adaptive Patch for Accelerating Wound Healing.

Sung-Won Kim1,2, Sangyul Baik3, Jiyu Hyun1

  • 1School of Chemical Engineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea.

Advanced Healthcare Materials
|September 5, 2024
PubMed
Summary

A novel, one-step fabrication process created ESOIA, a biomaterial for advanced wound dressings. This material offers superior adhesion and enhanced therapeutic effects for improved wound healing and biomolecule delivery.

Keywords:
adhesivenessangiogenesiscell sheetspheroidswound healing

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Wound Healing

Background:

  • Advanced wound dressings require enhanced adhesiveness and biomolecule delivery efficacy on moist, curved skin interfaces.
  • Current chemical moiety-based adhesives face challenges with complex fabrication and allergic responses.
  • Developing biomimetic adhesives with therapeutic capabilities is crucial for effective wound management.

Purpose of the Study:

  • To develop a one-step fabrication process for microstructures with both therapeutic and adhesive properties for advanced wound dressings.
  • To evaluate the adhesive strength and biomolecule delivery capabilities of the novel material.
  • To assess the therapeutic efficacy of the material in promoting wound healing.

Main Methods:

  • Fabrication of microstructures (ESOIA) combining an octopi-inspired adhesive part (OIA) and a therapeutic part (ESS) using a one-step process.
  • Adhesion strength testing of OIA on dry and wet pig skin, including repeated attach-detach trials.
  • In vitro assessment of the angiogenic effect of ESS.
  • In vivo evaluation of wound healing outcomes and cell engraftment compared to cell injection.

Main Results:

  • OIA demonstrated superior adhesion strength on pig skin in both dry (1.48 N cm⁻²) and wet (0.81 N cm⁻²) conditions, maintaining properties after repeated use.
  • ESS exhibited an enhanced angiogenic effect in vitro compared to normal culture.
  • ESOIA application resulted in improved in vivo wound healing with enhanced cell engraftment.

Conclusions:

  • The developed one-step fabrication process successfully created ESOIA, a promising biomaterial for advanced wound dressings.
  • ESOIA offers significant advantages in adhesion and therapeutic efficacy, addressing limitations of current wound care technologies.
  • This biomimetic approach holds potential for improved wound healing through enhanced cell-matrix interactions and biomolecule delivery.