905410
TissueFab® bioink
Alg(Gel)ma -UV/365 nm
Synonyme(s) :
GelMA-alginate bioink
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About This Item
Code UNSPSC :
12352201
Nomenclature NACRES :
NA.23
Produits recommandés
Description
0.2 μm sterile filtered
suitable for 3D bioprinting applications
Forme
viscous liquid
Conditionnement
1 ea of 10 mL
Impuretés
≤5 CFU/g Bioburden (Fungal)
≤5 CFU/g Bioburden (Total Aerobic)
Couleur
colorless to pale yellow
pH
6.5-7.5
Application(s)
3D bioprinting
Température de stockage
2-8°C
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Description générale
3D bioprinting is the printing of biocompatible materials, cells, growth factors, and the other supporting materials necessary to yield functional complex living tissues. 3D bioprinting has been used to generate several different types of tissue such as skin, bone, vascular grafts, and cartilage structures. Based upon the desired properties, different materials and formulations can be used to generate both hard and soft tissues. While several 3D printing methods exist, due to the sensitivity of the materials used, extrusion-based methods with bioinks are most commonly employed.
Application
Gelatin methacryloyl (GelMA) is a polymerizable hydrogel material derived from natural extracellular matrix (ECM) components. Due to its low cost, abundance, and retention of natural cell binding motifs, gelatin has become a highly sought material for tissue engineering applications. Alginate is a naturally occurring polymer widely applied for bioprinting applications as its printability can be easily modified by altering the polymer density and crosslinking with the addition of calcium chloride (CaCl2). Alginate is often combined with gelatin to facilitate cell adhesion and differentiation. The addition of photocrosslinkable methacrylamide functional groups in GelMA allows the synthesis of biocompatible, biodegradable, and non-immunogenic hydrogels that are stable in biologically relevant conditions and promote cell adhesion, spreading, and proliferation. In addition to fast gelation, the methacrylamide functional group can also be used to control the hydrogel physical parameters such as pore size, degradation rate, and swell ratio. Temporal and spatial control of the crosslinking reaction can be obtained by adjusting the degree of functionalization and polymerization conditions, allowing for the fabrication of hydrogels with unique patterns, 3D structures, and morphologies. Gelatin methacrylate bioinks have been used for 3D bioprinting with high printing resolution, shape fidelity and cell viability. Gelatin methacrylate based bioinks have been used to bioprint osteogenic, chondrogenic, hepatic, adipogenic, vasculogenic, epithelial, endothelial, cardiac valve, skin, tumor and other tissues and constructs. Gelatin and alginate-containing bioinks have been used for bioprinting of 3D constructs with various cell types including human mesenchymal stem cells (hMSC), embryonic stem cells (ESC), human umbilical vein endothelial cells (HUVEC), fibroblasts, and cancer cells.
Conditionnement
Product contains 10 ml of solution packaged in glass bottle.
Autres remarques
Important tips for optimal bioprinting results
Procedure
1. Prepare bioink solution: Warm TissueFab® - GelAlg-UV bioink in a water bath or incubator set to 37 °C for 30 minutes or until the bioink becomes fluid. Gently invert the bioink to make a homogeneous solution. DO NOT vortex or shake vigorously.
2. Prepare bioink-cell solution: Resuspend the cell pellet at the desired cell density with the bioink solution by gently pipetting up and down. Typical cell density for extrusion-based bioprinting is 1 to 5 x 106 cells/mL. Load the bioink-cell solution into the desired printer cartridge.
3. Bioprint: Cool the filled printer cartridge below 23 °C to induce gelation, using a temperature controlled printhead or place the cartridge at 4 °C for a few minutes. If print bed temperature control is available, set temperature to 20 °C. Follow the 3D printer manufacturer′s instructions. Load the print cartridge onto the 3D printer and print directly onto a Petri dish or into multi-well plates. Adjust the flow according to nozzle diameter, printing speed, printing pressure, and temperature. For optimal results, print under a gentle flow of 200 mM CaCl2 solution. A portable humidifier may be used to maintain the flow of the CaCl2 solution.
4. Crosslink: To photocrosslink, place the UV light source directly above the 3D-bioprinted structure and expose the structure to UV light (wavelength 365 nm). Use the appropriate distance settings and exposure times for your bioprinter. To chemically crosslink the printed structure, add 100mM CaCl2 in PBS for 1 minute. Rinse with PBS twice.
5. Culture cells: Culture the bioprinted tissue with appropriate cell culture medium following standard tissue culture procedures.
- Optimize printing conditions (e.g., nozzle diameter, printing speed, printing pressure, temperature, cell density) for the features of your 3D printer and your application.
- Reduce bubble formation. Air bubbles in bioink may hamper bioprinting. Carefully handle the bioink when you mix and transfer it to avoid bubble formation. Do not vortex or shake vigorously.
- UV light Crosslinking. Position the light source directly above the printed structure. Lower intensity light sources will require shorter distances and longer exposure times to complete crosslinking. Recommended conditions: Place an 800 mW/cm2 light source 8 cm above the printed structure and expose for 30 to 60 s.
Procedure
1. Prepare bioink solution: Warm TissueFab® - GelAlg-UV bioink in a water bath or incubator set to 37 °C for 30 minutes or until the bioink becomes fluid. Gently invert the bioink to make a homogeneous solution. DO NOT vortex or shake vigorously.
2. Prepare bioink-cell solution: Resuspend the cell pellet at the desired cell density with the bioink solution by gently pipetting up and down. Typical cell density for extrusion-based bioprinting is 1 to 5 x 106 cells/mL. Load the bioink-cell solution into the desired printer cartridge.
3. Bioprint: Cool the filled printer cartridge below 23 °C to induce gelation, using a temperature controlled printhead or place the cartridge at 4 °C for a few minutes. If print bed temperature control is available, set temperature to 20 °C. Follow the 3D printer manufacturer′s instructions. Load the print cartridge onto the 3D printer and print directly onto a Petri dish or into multi-well plates. Adjust the flow according to nozzle diameter, printing speed, printing pressure, and temperature. For optimal results, print under a gentle flow of 200 mM CaCl2 solution. A portable humidifier may be used to maintain the flow of the CaCl2 solution.
4. Crosslink: To photocrosslink, place the UV light source directly above the 3D-bioprinted structure and expose the structure to UV light (wavelength 365 nm). Use the appropriate distance settings and exposure times for your bioprinter. To chemically crosslink the printed structure, add 100mM CaCl2 in PBS for 1 minute. Rinse with PBS twice.
5. Culture cells: Culture the bioprinted tissue with appropriate cell culture medium following standard tissue culture procedures.
Informations légales
TISSUEFAB is a registered trademark of Merck KGaA, Darmstadt, Germany
Code de la classe de stockage
10 - Combustible liquids
Classe de danger pour l'eau (WGK)
WGK 3
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Les clients ont également consulté
Weitao Jia et al.
Biomaterials, 106, 58-68 (2016-08-24)
Despite the significant technological advancement in tissue engineering, challenges still exist towards the development of complex and fully functional tissue constructs that mimic their natural counterparts. To address these challenges, bioprinting has emerged as an enabling technology to create highly
Marco Costantini et al.
Biofabrication, 8(3), 035002-035002 (2016-07-20)
In this work we demonstrate how to print 3D biomimetic hydrogel scaffolds for cartilage tissue engineering with high cell density (>10(7) cells ml(-1)), high cell viability (85 ÷ 90%) and high printing resolution (≈100 μm) through a two coaxial-needles system.
Liliang Ouyang et al.
Biofabrication, 8(3), 035020-035020 (2016-09-17)
3D cell printing is an emerging technology for fabricating complex cell-laden constructs with precise and pre-designed geometry, structure and composition to overcome the limitations of 2D cell culture and conventional tissue engineering scaffold technology. This technology enables spatial manipulation of
Thomas Billiet et al.
Biomaterials, 35(1), 49-62 (2013-10-12)
In the present study, we report on the combined efforts of material chemistry, engineering and biology as a systemic approach for the fabrication of high viability 3D printed macroporous gelatin methacrylamide constructs. First, we propose the use and optimization of
Y Shi et al.
Biomedical materials (Bristol, England), 13(3), 035008-035008 (2018-01-09)
Three-dimensional bioprinting is an emerging technology for fabricating living 3D constructs, and it has shown great promise in tissue engineering. Bioinks are scaffold materials mixed with cells used by 3D bioprinting to form a required cell-laden structure. In this paper
Articles
Bioinks can be 3D bioprinted into functional tissue constructs for drug screening, disease modeling, and in vitro transplantation. Choose the Bioinks and method for specific tissues engineering applications.
Professor Shrike Zhang (Harvard Medical School, USA) discusses advances in 3D-bioprinted tissue models for in vitro drug testing, reviews bioink selections, and provides application examples of 3D bioprinting in tissue model biofabrication.
Professor Shrike Zhang (Harvard Medical School, USA) discusses advances in 3D-bioprinted tissue models for in vitro drug testing, reviews bioink selections, and provides application examples of 3D bioprinting in tissue model biofabrication.
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