Supercritical carbon dioxide decellularization of plant material to generate 3D biocompatible scaffolds

The use of plant-based biomaterials for tissue engineering has recently generated interest as plant decellularization produces biocompatible scaffolds which can be repopulated with human cells. The predominant approach for vegetal decellularization remains serial chemical processing. However, this technique is time-consuming and requires harsh compounds which damage the resulting scaffolds. The current study presents an alternative solution using supercritical carbon dioxide (scCO2). Protocols testing various solvents were assessed and results found that scCO2 in combination with 2% peracetic acid decellularized plant material in less than 4 h, while preserving plant microarchitecture and branching vascular network. The biophysical and biochemical cues of the scCO2 decellularized spinach leaf scaffolds were then compared to chemically generated scaffolds. Data showed that the scaffolds had a similar Young's modulus, suggesting identical stiffness, and revealed that they contained the same elements, yet displayed disparate biochemical signatures as assessed by Fourier-transform infrared spectroscopy (FTIR). Finally, human fibroblast cells seeded on the spinach leaf surface were attached and alive after 14 days, demonstrating the biocompatibility of the scCO2 decellularized scaffolds. Thus, scCO2 was found to be an efficient method for plant material decellularization, scaffold structure preservation and recellularization with human cells, while performed in less time (36 h) than the standard chemical approach (170 h).

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Scientific reports - 11(2021), 1 vom: 11. Feb., Seite 3643

Sprache:

Englisch

Beteiligte Personen:

Harris, Ashlee F [VerfasserIn]
Lacombe, Jerome [VerfasserIn]
Liyanage, Sumedha [VerfasserIn]
Han, Margaret Y [VerfasserIn]
Wallace, Emily [VerfasserIn]
Karsunky, Sophia [VerfasserIn]
Abidi, Noureddine [VerfasserIn]
Zenhausern, Frederic [VerfasserIn]

Links:

Volltext

Themen:

142M471B3J
Biocompatible Materials
Carbon Dioxide
Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 12.11.2021

Date Revised 10.11.2023

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-021-83250-9

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM321343972