A facile strategy for promoting cell adhesion and function on three-dimensional printed hydrogels using photocurable epsilon-poly-L-lysine. Lertwimol, T., Sungkhaphan, P., Uppanan, P., Zhang, Q., Haddleton, D. M., & Risangud, N. EUROPEAN POLYMER JOURNAL, September, 2023. doi abstract bibtex This study introduces a new persuasive strategy for promoting cell adhesion and function on three-dimensional (3D) printed hydrogels by incorporating photocurable epsilon-poly-L-lysine (EPL) as the cell adhesive molecule. Two different polymers, dextran (Dex) and EPL, were first modified using methacrylic anhydride and glycidyl methacrylate, respectively, to obtain the methacrylate-functionalized polymers: Dex-MA and EPL-MA. Subsequently, these modified polymers were formulated with poly(ethylene glycol dimethacrylate) (PEGDMA) before fabricating the 3D-printed hydrogels through digital light processing (DLP). The effects of the PEGDMA, Dex-MA, and EPL-MA ratios in the formulation on the physical properties of 3D-printed hydrogel and their biological responses were assessed. The 3D-printed specimens possessed compressive moduli in the range of 280-520 kPa. SEM/EDS analysis confirmed the presence of nitrogen in the hydrogels. The ninhydrin assay revealed that the EPL-MA content fell in the range of 0-0.15 mg/mg. All prepared hydrogels exhibited non-cytotoxic behavior toward NIH/3T3 fibroblasts. The benefit of incorporating EPL-MA and, interestingly, the stiffness of 3D-printed hydrogel on cell performance has been confirmed by various biological evaluations, including viability, adhesion, growth, and function of NIH/3T3 fibroblasts. Taken together, we have developed a rather promising strategy using photocurable epsilon-poly-L-lysine for promoting cell adhesion and functionalisation with potential for skin tissue engineering and other regenerative medicine applications.
@article{lertwimol_facile_2023,
title = {A facile strategy for promoting cell adhesion and function on three-dimensional printed hydrogels using photocurable epsilon-poly-{L}-lysine},
volume = {196},
issn = {0014-3057},
doi = {10.1016/j.eurpolymj.2023.112245},
abstract = {This study introduces a new persuasive strategy for promoting cell adhesion and function on three-dimensional (3D) printed hydrogels by incorporating photocurable epsilon-poly-L-lysine (EPL) as the cell adhesive molecule. Two different polymers, dextran (Dex) and EPL, were first modified using methacrylic anhydride and glycidyl methacrylate, respectively, to obtain the methacrylate-functionalized polymers: Dex-MA and EPL-MA. Subsequently, these modified polymers were formulated with poly(ethylene glycol dimethacrylate) (PEGDMA) before fabricating the 3D-printed hydrogels through digital light processing (DLP). The effects of the PEGDMA, Dex-MA, and EPL-MA ratios in the formulation on the physical properties of 3D-printed hydrogel and their biological responses were assessed. The 3D-printed specimens possessed compressive moduli in the range of 280-520 kPa. SEM/EDS analysis confirmed the presence of nitrogen in the hydrogels. The ninhydrin assay revealed that the EPL-MA content fell in the range of 0-0.15 mg/mg. All prepared hydrogels exhibited non-cytotoxic behavior toward NIH/3T3 fibroblasts. The benefit of incorporating EPL-MA and, interestingly, the stiffness of 3D-printed hydrogel on cell performance has been confirmed by various biological evaluations, including viability, adhesion, growth, and function of NIH/3T3 fibroblasts. Taken together, we have developed a rather promising strategy using photocurable epsilon-poly-L-lysine for promoting cell adhesion and functionalisation with potential for skin tissue engineering and other regenerative medicine applications.},
urldate = {2023-09-07},
journal = {EUROPEAN POLYMER JOURNAL},
author = {Lertwimol, Tareerat and Sungkhaphan, Piyarat and Uppanan, Paweena and Zhang, Qiang and Haddleton, David M. and Risangud, Nuttapol},
month = sep,
year = {2023},
}
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Two different polymers, dextran (Dex) and EPL, were first modified using methacrylic anhydride and glycidyl methacrylate, respectively, to obtain the methacrylate-functionalized polymers: Dex-MA and EPL-MA. Subsequently, these modified polymers were formulated with poly(ethylene glycol dimethacrylate) (PEGDMA) before fabricating the 3D-printed hydrogels through digital light processing (DLP). The effects of the PEGDMA, Dex-MA, and EPL-MA ratios in the formulation on the physical properties of 3D-printed hydrogel and their biological responses were assessed. The 3D-printed specimens possessed compressive moduli in the range of 280-520 kPa. SEM/EDS analysis confirmed the presence of nitrogen in the hydrogels. The ninhydrin assay revealed that the EPL-MA content fell in the range of 0-0.15 mg/mg. All prepared hydrogels exhibited non-cytotoxic behavior toward NIH/3T3 fibroblasts. The benefit of incorporating EPL-MA and, interestingly, the stiffness of 3D-printed hydrogel on cell performance has been confirmed by various biological evaluations, including viability, adhesion, growth, and function of NIH/3T3 fibroblasts. 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Two different polymers, dextran (Dex) and EPL, were first modified using methacrylic anhydride and glycidyl methacrylate, respectively, to obtain the methacrylate-functionalized polymers: Dex-MA and EPL-MA. Subsequently, these modified polymers were formulated with poly(ethylene glycol dimethacrylate) (PEGDMA) before fabricating the 3D-printed hydrogels through digital light processing (DLP). The effects of the PEGDMA, Dex-MA, and EPL-MA ratios in the formulation on the physical properties of 3D-printed hydrogel and their biological responses were assessed. The 3D-printed specimens possessed compressive moduli in the range of 280-520 kPa. SEM/EDS analysis confirmed the presence of nitrogen in the hydrogels. The ninhydrin assay revealed that the EPL-MA content fell in the range of 0-0.15 mg/mg. All prepared hydrogels exhibited non-cytotoxic behavior toward NIH/3T3 fibroblasts. 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