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You are researching: Montreal University
Cell Type
Tissue and Organ Biofabrication
Skin Tissue Engineering
Drug Delivery
Biological Molecules
Solid Dosage Drugs
Stem Cells
Personalised Pharmaceuticals
Inducend Pluripotent Stem Cells (IPSCs)
Drug Discovery
Cancer Cell Lines
All Groups
- Application
- Tissue Models – Drug Discovery
- Tissue and Organ Biofabrication
- Cartilage Tissue Engineering
- Bone Tissue Engineering
- Drug Delivery
- Skin Tissue Engineering
- Vascularization
- Nerve – Neural Tissue Engineering
- Meniscus Tissue Engineering
- Heart – Cardiac Patches Tissue Engineering
- Adipose Tissue Engineering
- Trachea Tissue Engineering
- Ocular Tissue Engineering
- Intervertebral Disc (IVD) Tissue Engineering
- Biomaterial Processing
- Drug Discovery
- Electronics – Robotics – Industrial
- BioSensors
- Personalised Pharmaceuticals
- Bioprinting Technologies
- Biomaterials & Bioinks
- Cell Type
- Organoids
- Meniscus Cells
- Skeletal Muscle-Derived Cells (SkMDCs)
- Macrophages
- Corneal Stromal Cells
- Stem Cells
- Chondrocytes
- Fibroblasts
- Myoblasts
- Cancer Cell Lines
- Articular cartilage progenitor cells (ACPCs)
- Osteoblasts
- Epithelial
- Human Umbilical Vein Endothelial Cells (HUVECs)
- Spheroids
- Keratinocytes
- Neurons
- Endothelial
- CardioMyocites
- Melanocytes
- Retinal
- Embrionic Kidney (HEK)
- β cells
- Pericytes
- Bacteria
- Tenocytes
- Bioprinting Applications
- Institution
- University of Barcelona
- Rice University
- Hefei University
- Abu Dhabi University
- University of Sheffield
- DTU – Technical University of Denmark
- INM – Leibniz Institute for New Materials
- Innsbruck University
- Montreal University
- Harbin Institute of Technology
- ETH Zurich
- Nanyang Technological University
- Utrecht Medical Center (UMC)
- University of Manchester
- University of Nottingham
- Trinity College
- Chalmers University of Technology
- AO Research Institute (ARI)
- University of Wurzburg
- Institute for Bioengineering of Catalonia (IBEC)
- University of Amsterdam
- Bayreuth University
- Ghent University
- National University of Singapore
- Adolphe Merkle Institute Fribourg
- Zurich University of Applied Sciences (ZHAW)
- Hallym University
- National Institutes of Health (NIH)
- Rizzoli Orthopaedic Institute
- University of Bucharest
- University of Geneva
- Novartis
- Karlsruhe institute of technology
- Shanghai University
- Technical University of Dresden
- University of Michigan – School of Dentistry
- University of Tel Aviv
- Aschaffenburg University
- Chiao Tung University
- CIC biomaGUNE
- Halle-Wittenberg University
- Innotere
- Nanjing Medical University
- Ningbo Institute of Materials Technology and Engineering (NIMTE)
- Queen Mary University
- Royal Free Hospital
- SINTEF
- University of Central Florida
- University of Freiburg
- Univerity of Hong Kong
- University of Nantes
- Myiongji University
- University of Applied Sciences Northwestern Switzerland
- University of Michigan, Biointerfaces Institute
- Sree Chitra Tirunal Institute
- Kaohsiung Medical University
- Baylor College of Medicine
- L'Oreal
- University of Bordeaux
- KU Leuven
- Veterans Administration Medical Center
- Hong Kong University
- Review Paper
- Printing Technology
- Biomaterial
- Thermoplastics
- Bioinks
- Xanthan Gum
- Paeoniflorin
- Alginate
- Gelatin-Methacryloyl (GelMA)
- Cellulose
- Hyaluronic Acid
- Polyethylene glycol (PEG) based
- Collagen
- Gelatin
- Gellan Gum
- Methacrylated hyaluronic acid (HAMA)
- Silk Fibroin
- Fibrinogen
- (2-Hydroxypropyl)methacrylamide (HPMA)
- Carrageenan
- Chitosan
- Glycerol
- Poly(glycidol)
- Agarose
- methacrylated chondroitin sulfate (CSMA)
- Novogel
- Peptide gel
- α-Bioink
- Elastin
- Matrigel
- Methacrylated Chitosan
- Pectin
- Pyrogallol
- Fibrin
- Methacrylated Collagen (CollMA)
- Glucosamine
- Non-cellularized gels/pastes
- Jeffamine
- Mineral Oil
- Pluronic – Poloxamer
- Silicone
- Polyvinylpyrrolidone (PVP)
- Salt-based
- Acrylates
- 2-hydroxyethyl-methacrylate (HEMA)
- Magnetorheological fluid (MR fluid – MRF)
- Poly(vinyl alcohol) (PVA)
- PEDOT
- Polyethylene
- Carbopol
- Epoxy
- poly (ethylene-co -vinyl acetate) (PEVA)
- Poly(N-isopropylacrylamide) (PNIPAAm)
- Poly(Oxazoline)
- Poly(trimethylene carbonate)
- Polyisobutylene
- Konjac Gum
- Gelatin-Sucrose Matrix
- Chlorella Microalgae
- Poly(Vinyl Formal)
- Phenylacetylene
- 2-hydroxyethyl) methacrylate (HEMA)
- Paraffin
- Polyphenylene Oxide
- Micro/nano-particles
- Biological Molecules
- Decellularized Extracellular Matrix (dECM)
- Solid Dosage Drugs
- Ceramics
- Metals
AUTHOR
Year
2022
Journal/Proceedings
Bioprinting
Reftype
Groups
AbstractThermosensitive chitosan (CH)-based hydrogels prepared with a mix of sodium bicarbonate and β-glycerophosphate as gelling agents rapidly pass from a liquid at room temperature to a mechanically strong solid at body temperature without any crosslinker. They show excellent potential for tissue engineering applications and could be interesting candidates for bioprinting. Unfortunately, since gelation is not instantaneous, formulations compatible with cell encapsulation (chitosan concentrations around 2% or lower) lead to very poor resolution and fidelity due to filament spreading. Here, we investigate the FRESH bioprinting approach with a warm sacrificial support bath, to overcome these limitations and enhance their bioprintability. First, a support bath, made of Pluronic including sodium chloride salt as a rheology modifier agent, was designed to meet the specific physical state requirements (solid at 37 °C and liquid at room temperature) and rheological properties appropriate for bioprinting. This support bath presented yield stress of over 100 Pa, a shear thinning behavior, and fast self-healing during cyclic recovery tests. Three different chitosan hydrogels (CH2%w/v, CH3%w/v, and a mixture of CH and gelatin) were tested for their ability to form filament and 3D structures, with and without a support bath. Both the resolution and mechanical properties of the printed structure were drastically enhanced using the FRESH method, with an approximate four fold decrease of the filament diameter which is close to the needle diameter. The printed structures were easily harvested without altering their shape by cooling down the support bath, and do not swell when immersed in PBS. Live/dead assays confirmed that the viability of encapsulated mesenchymal stem cells was highest in CH2% and that the support bath-assisted bioprinting process did not adversely impact cell viability. This study demonstrates that using a warm FRESH-like approach drastically enhances the potential for bioprinting of the thermosensitive biodegradable chitosan hydrogels and opens up a wide range of applications for 3D models and tissue engineering.