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3D Printed Porous Cellulose Nanocomposite Hydrogel Scaffolds
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3D multi-layered fibrous cellulose structure using an electrohydrodynamic process for tissue engineering.

Minseong Kim1, GeunHyung Kim1

  • 1Department of Biomechatronic Engineering, College of Biotechnology and Bioengineering, Sungkyunkwan University (SKKU), Suwon, South Korea.

Journal of Colloid and Interface Science
|July 13, 2015
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel 3D cellulose scaffold using electrohydrodynamic direct jet (EHDJ) printing. This biomaterial shows superior cell adhesion and metabolic activity, indicating its potential for tissue engineering applications.

Keywords:
CelluloseNanofibersScaffoldTissue engineering

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Nanotechnology

Background:

  • Micro/nanofibrous structures mimic the extracellular matrix (ECM), promoting cell adhesion and growth in tissue engineering.
  • Producing 3D fibrous scaffolds with controllable macro-pores remains a challenge.
  • Cellulose, a natural biomaterial, shows promise but has limitations in 3D biomedical applications due to its narrow processing window.

Purpose of the Study:

  • To develop a novel 3D cellulose scaffold with controllable macro-pores for tissue engineering.
  • To fabricate multi-layered cellulose structures using an electrohydrodynamic direct jet (EHDJ) process.
  • To evaluate the physical and in vitro biocompatibility of the cellulose scaffold compared to a polycaprolactone (PCL) control.

Main Methods:

  • Fabrication of a 3D cellulose scaffold using an electrohydrodynamic direct jet (EHDJ) spin-printing process.
  • Optimization of EHDJ processing conditions (electric field strength, feeding rate, nozzle-target distance).
  • Assessment of scaffold properties and in vitro biocompatibility using human dermal fibroblasts, with a PCL scaffold as a control.

Main Results:

  • Successfully fabricated a multi-layered 3D cellulose structure with entangled submicron-sized fibers.
  • The cellulose scaffold exhibited significantly higher human dermal fibroblast adhesion and metabolic activity compared to the PCL control.
  • The EHDJ process allowed for the creation of controllable macro-pore structures.

Conclusions:

  • The electrohydrodynamic direct jet (EHDJ) process is an effective method for fabricating 3D fibrous scaffolds.
  • The developed 3D cellulose scaffold demonstrates excellent biocompatibility and holds significant potential as a regenerative material for tissue engineering applications.