Ng, W. L., Chua, C. K. & Shen, Y.-F. Print me an organ! Why we are not there yet. Prog. Polym. Sci. 97, 101145 (2019).
Google Scholar
Matai, I., Kaur, G., Seyedsalehi, A., McClinton, A. & Laurencin, C. T. Progress in 3D bioprinting technology for tissue/organ regenerative engineering. Biomaterials 226, 119536 (2020).
Google Scholar
Mandrycky, C., Wang, Z., Kim, K. & Kim, D.-H. 3D bioprinting for engineering complex tissues. Biotechnol. Adv. 34, 422–434 (2016).
Google Scholar
Axpe, E. & Oyen, M. L. Applications of alginate-based bioinks in 3D bioprinting. Int. J. Mol. Sci. 17, 1976 (2016).
Google Scholar
Shao, Z. & Vollrath, F. Surprising strength of silkworm silk. Nature 418, 741–741 (2002).
Google Scholar
Müller, M., Becher, J., Schnabelrauch, M. & Zenobi-Wong, M. Nanostructured pluronic hydrogels as bioinks for 3D bioprinting. Biofabrication 7, 035006 (2015).
Google Scholar
Wang, Z. et al. A simple and high-resolution stereolithography-based 3D bioprinting system using visible light crosslinkable bioinks. Biofabrication 7, 045009 (2015).
Google Scholar
Takagi, D. et al. High-precision three-dimensional inkjet technology for live cell bioprinting. Int. J. Bioprinting 5, 208 (2019).
Google Scholar
Ng, W. L., Lee, J. M., Yeong, W. Y. & Naing, M. W. Microvalve-based bioprinting–process, bio-inks and applications. Biomater. Sci. 5, 632–647 (2017).
Google Scholar
Guillotin, B. et al. Laser assisted bioprinting of engineered tissue with high cell density and microscale organization. Biomaterials 31, 7250–7256 (2010).
Google Scholar
Ozbolat, I. T. & Hospodiuk, M. Current advances and future perspectives in extrusion-based bioprinting. Biomaterials 76, 321–343 (2016).
Google Scholar
Gupta, S. et al. Evaluation of silk‐based bioink during pre and post 3D bioprinting: a review. J. Biomed. Mater. Res. B Appl. Biomater. 109, 279–293 (2021).
Google Scholar
Singh, Y. P., Bandyopadhyay, A. & Mandal, B. B. 3D bioprinting using cross-linker-free silk–gelatin bioink for cartilage tissue engineering. ACS Appl. Mater. Interfaces 11, 33684–33696 (2019).
Google Scholar
Ng, W. L. et al. Vat polymerization-based bioprinting—process, materials, applications and regulatory challenges. Biofabrication 12, 022001 (2020).
Google Scholar
Zhang, J., Hu, Q., Wang, S., Tao, J. & Gou, M. Digital light processing based three-dimensional printing for medical applications. Int. J. Bioprinting 6, 242 (2020).
Google Scholar
Wu, C., Wang, B., Zhang, C., Wysk, R. A. & Chen, Y.-W. Bioprinting: an assessment based on manufacturing readiness levels. Crit. Rev. Biotechnol. 37, 333–354 (2017).
Google Scholar
Kim, S. H. et al. Precisely printable and biocompatible silk fibroin bioink for digital light processing 3D printing. Nat. Commun. 9, 1620 (2018).
Google Scholar
Lu, Y., Mapili, G., Suhali, G., Chen, S. & Roy, K. A digital micro‐mirror device‐based system for the microfabrication of complex, spatially patterned tissue engineering scaffolds. J. Biomed. Mater. Res. A 77, 396–405 (2006).
Google Scholar
Zhu, W. et al. 3D printing of functional biomaterials for tissue engineering. Curr. Opin. Biotechnol. 40, 103–112 (2016).
Google Scholar
Grogan, S. P. et al. Digital micromirror device projection printing system for meniscus tissue engineering. Acta Biomater. 9, 7218–7226 (2013).
Google Scholar
Lin, H. et al. Application of visible light-based projection stereolithography for live cell-scaffold fabrication with designed architecture. Biomaterials 34, 331–339 (2013).
Google Scholar
Lam, T. et al. Photopolymerizable gelatin and hyaluronic acid for stereolithographic 3D bioprinting of tissue‐engineered cartilage. J. Biomed. Mater. Res. B Appl. Biomater. 107, 2649–2657 (2019).
Google Scholar
Soman, P., Chung, P. H., Zhang, A. P. & Chen, S. Digital microfabrication of user‐defined 3D microstructures in cell‐laden hydrogels. Biotechnol. Bioeng. 110, 3038–3047 (2013).
Google Scholar
Zhang, A. P. et al. Rapid fabrication of complex 3D extracellular microenvironments by dynamic optical projection stereolithography. Adv. Mater. 24, 4266–4270 (2012).
Google Scholar
Melke, J., Midha, S., Ghosh, S., Ito, K. & Hofmann, S. Silk fibroin as biomaterial for bone tissue engineering. Acta Biomater. 31, 1–16 (2016).
Google Scholar
Ju, H. W. et al. Silk fibroin based hydrogel for regeneration of burn induced wounds. Tissue Eng. Regen. Med. 11, 203–210 (2014).
Google Scholar
Qi, Y. et al. A review of structure construction of silk fibroin biomaterials from single structures to multi-level structures. Int. J. Mol. Sci. 18, 237 (2017).
Google Scholar
Kim, S. H., Kim, D. Y., Lim, T. H. & Park, C. H. Silk fibroin bioinks for digital light processing (DLP) 3D bioprinting. Adv. Exp. Med. Biol. 1249, 53–66 (2020).
Google Scholar
Kambe, Y. et al. Beta-sheet content significantly correlates with the biodegradation time of silk fibroin hydrogels showing a wide range of compressive modulus. Polym. Degrad. Stab. 179, 109240 (2020).
Google Scholar
Cao, Z., Chen, X., Yao, J., Huang, L. & Shao, Z. The preparation of regenerated silk fibroin microspheres. Soft Matter 3, 910–915 (2007).
Google Scholar
Sheikh, F. A. et al. 3D electrospun silk fibroin nanofibers for fabrication of artificial skin. Nanomed. Nanotechnol. Biol. Med. 11, 681–691 (2015).
Google Scholar
Lee, J. M. et al. Artificial auricular cartilage using silk fibroin and polyvinyl alcohol hydrogel. Int. J. Mol. Sci. 18, 1707 (2017).
Google Scholar
Kim, J.-H. et al. Osteoinductive silk fibroin/titanium dioxide/hydroxyapatite hybrid scaffold for bone tissue engineering. Int. J. Biol. Macromol. 82, 160–167 (2016).
Google Scholar
Chung, E. J., Ju, H. W., Park, H. J. & Park, C. H. Three‐layered scaffolds for artificial esophagus using poly (ɛ‐caprolactone) nanofibers and silk fibroin: An experimental study in a rat model. J. Biomed. Mater. Res. A 103, 2057–2065 (2015).
Google Scholar
Lee, M. C. et al. Fabrication of silk fibroin film using centrifugal casting technique for corneal tissue engineering. J. Biomed. Mater. Res. B Appl. Biomater. 104, 508–514 (2016).
Google Scholar
Hong, H. et al. Digital light processing 3D printed silk fibroin hydrogel for cartilage tissue engineering. Biomaterials 232, 119679 (2020).
Google Scholar
Wang, Q., Han, G., Yan, S. & Zhang, Q. 3D printing of silk fibroin for biomedical applications. Materials 12, 504 (2019).
Google Scholar
Oliveira, J. M. et al. Current and future trends of silk fibroin-based bioinks in 3D printing. J. 3D Print. Med. 4, 69–73 (2020).
Google Scholar
Das, S. et al. Bioprintable, cell-laden silk fibroin–gelatin hydrogel supporting multilineage differentiation of stem cells for fabrication of three-dimensional tissue constructs. Acta Biomater. 11, 233–246 (2015).
Google Scholar
Shi, W. et al. Structurally and functionally optimized silk‐fibroin–gelatin scaffold using 3D printing to repair cartilage injury in vitro and in vivo. Adv. Mater. 29, 1701089 (2017).
Google Scholar
Sharma, A. et al. Investigating the role of sustained calcium release in silk-gelatin-based three-dimensional bioprinted constructs for enhancing the osteogenic differentiation of human bone marrow derived mesenchymal stromal cells. ACS Biomater. Sci. Eng. 5, 1518–1533 (2019).
Google Scholar
Mehrotra, S. et al. Nonmulberry silk based ink for fabricating mechanically robust cardiac patches and endothelialized myocardium‐on‐a‐chip application. Adv. Funct. Mater. 30, 1907436 (2020).
Google Scholar
Zheng, Z. et al. 3D bioprinting of self‐standing silk‐based bioink. Adv. Healthc. Mater. 7, 1701026 (2018).
Google Scholar
Nguyễn, T.T., Ratanavaraporn, J. & Yodmuang, S. Alginate-silk fibroin bioink: a printable hydrogel for tissue engineering. in 2019 12th Biomedical Engineering International Conference (BMEiCON) 1–4 (IEEE, 2019).
Compaan, A. M., Christensen, K. & Huang, Y. Inkjet bioprinting of 3D silk fibroin cellular constructs using sacrificial alginate. ACS Biomater. Sci. Eng. 3, 1519–1526 (2017).
Google Scholar
Jiang, J.-P. et al. Three-dimensional bioprinting collagen/silk fibroin scaffold combined with neural stem cells promotes nerve regeneration after spinal cord injury. Neural Regen. Res. 15, 959 (2020).
Google Scholar
Lee, H. et al. Fabrication of micro/nanoporous collagen/dECM/silk-fibroin biocomposite scaffolds using a low temperature 3D printing process for bone tissue regeneration. Mater. Sci. Eng. C. 84, 140–147 (2018).
Google Scholar
Na, K. et al. Effect of solution viscosity on retardation of cell sedimentation in DLP 3D printing of gelatin methacrylate/silk fibroin bioink. J. Ind. Eng. Chem. 61, 340–347 (2018).
Google Scholar
Kwak, H., Shin, S., Lee, H. & Hyun, J. Formation of a keratin layer with silk fibroin-polyethylene glycol composite hydrogel fabricated by digital light processing 3D printing. J. Ind. Eng. Chem. 72, 232–240 (2019).
Google Scholar
Shin, S., Kwak, H. & Hyun, J. Melanin nanoparticle-incorporated silk fibroin hydrogels for the enhancement of printing resolution in 3D-projection stereolithography of poly (ethylene glycol)-tetraacrylate bio-ink. ACS Appl. Mater. Interfaces 10, 23573–23582 (2018).
Google Scholar
Lee, H., Shin, D., Shin, S. & Hyun, J. Effect of gelatin on dimensional stability of silk fibroin hydrogel structures fabricated by digital light processing 3D printing. J. Ind. Eng. Chem. 89, 119–127 (2020).
Google Scholar
Piluso, S. et al. Rapid and cytocompatible cell-laden silk hydrogel formation via riboflavin-mediated crosslinking. J. Mater. Chem. B 8, 9566–9575 (2020).
Google Scholar
Lee, O. J. et al. Biodegradation behavior of silk fibroin membranes in repairing tympanic membrane perforations. J. Biomed. Mater. Res. A 100, 2018–2026 (2012).
Google Scholar
Yoshimizu, H. & Asakura, T. Preparation and characterization of silk fibroin powder and its application to enzyme immobilization. J. Appl. Polym. Sci. 40, 127–134 (1990).
Google Scholar
Park, Y. R. et al. Three-dimensional electrospun silk-fibroin nanofiber for skin tissue engineering. Int. J. Biol. Macromol. 93, 1567–1574 (2016).
Google Scholar
Park, H. J. et al. Fabrication of 3D porous silk scaffolds by particulate (salt/sucrose) leaching for bone tissue reconstruction. Int. J. Biol. Macromol. 78, 215–223 (2015).
Google Scholar
Irawan, V., Sung, T.-C., Higuchi, A. & Ikoma, T. Collagen scaffolds in cartilage tissue engineering and relevant approaches for future development. Tissue Eng. Regen. Med. 15, 673–697 (2018).
Google Scholar
Miyaguchi, Y. & Hu, J. Physicochemical properties of silk fibroin after solubilization using calcium chloride with or without ethanol. Food Sci. Technol. Res. 11, 37–42 (2005).
Google Scholar
Zhang, X., Reagan, M. R. & Kaplan, D. L. Electrospun silk biomaterial scaffolds for regenerative medicine. Adv. Drug Deliv. Rev. 61, 988–1006 (2009).
Google Scholar
Tao, H. et al. Inkjet printing of regenerated silk fibroin: from printable forms to printable functions. Adv. Mater. 27, 4273–4279 (2015).
Google Scholar
Sashina, E., Bochek, A., Novoselov, N. & Kirichenko, D. Structure and solubility of natural silk fibroin. Russ. J. Appl. Chem. 79, 869–876 (2006).
Google Scholar
Gulrez, S. K. H., Al-Assaf, S. & Phillips, G. O. Hydrogels: methods of preparation, characterisation and applications. in Progress in Molecular and Environmental Bioengineering: From Analysis and Modeling to Technology Applications, 117–150 (IntechOpen, 2011).
Nguyen, T. P. et al. Silk fibroin-based biomaterials for biomedical applications: a review. Polymers 11, 1933 (2019).
Google Scholar
Sun, M. et al. Synthesis and properties of gelatin methacryloyl (GelMA) hydrogels and their recent applications in load-bearing tissue. Polymers 10, 1290 (2018).
Google Scholar
Reis, A. V. et al. Reaction of glycidyl methacrylate at the hydroxyl and carboxylic groups of poly (vinyl alcohol) and poly (acrylic acid): is this reaction mechanism still unclear? J. Org. Chem. 74, 3750–3757 (2009).
Google Scholar
Wang, Z., Jin, X., Dai, R., Holzman, J. F. & Kim, K. An ultrafast hydrogel photocrosslinking method for direct laser bioprinting. RSC Adv. 6, 21099–21104 (2016).
Google Scholar
Vashist, A. et al. Bioresponsive injectable hydrogels for on-demand drug release and tissue engineering. Curr. Pharm. Des. 23, 3595–3602 (2017).
Google Scholar
Kim, S. H. et al. Rapidly photocurable silk fibroin sealant for clinical applications. NPG Asia Mater. 12, 1–16 (2020).
Google Scholar
Naresh, K. & Utpal, B. Silk fibroin in tissue engineering. Adv. Healthc. Mater. 1, 393–412 (2012).
Google Scholar
Kim, S. H. et al. 4D-bioprinted silk hydrogels for tissue engineering. Biomaterials 260, 120281 (2020).
Google Scholar
Ajiteru, O. et al. A 3D printable electroconductive biocomposite bioink based on silk fibroin-conjugated graphene oxide. Nano Lett. 20, 6873–6883 (2020).
Google Scholar
Van Den Bulcke, A. I. et al. Structural and rheological properties of methacrylamide modified gelatin hydrogels. Biomacromolecules 1, 31–38 (2000).
Google Scholar
Yue, K. et al. Synthesis, properties, and biomedical applications of gelatin methacryloyl (GelMA) hydrogels. Biomaterials 73, 254–271 (2015).
Google Scholar
Li, X., Zhang, J., Kawazoe, N. & Chen, G. Fabrication of highly crosslinked gelatin hydrogel and its influence on chondrocyte proliferation and phenotype. Polymers 9, 309 (2017).
Google Scholar
Kim, H. et al. Effect of silk fibroin molecular weight on physical property of silk hydrogel. Polymer 90, 26–33 (2016).
Google Scholar
Ozbas, B., Kretsinger, J., Rajagopal, K., Schneider, J. P. & Pochan, D. J. Salt-triggered peptide folding and consequent self-assembly into hydrogels with tunable modulus. Macromolecules 37, 7331–7337 (2004).
Google Scholar
Ladner-Keay, C. L., Griffith, B. J. & Wishart, D. S. Shaking alone induces de novo conversion of recombinant prion proteins to β-sheet rich oligomers and fibrils. PloS One 9, e98753 (2014).
Google Scholar
Kim, U.-J. et al. Structure and properties of silk hydrogels. Biomacromolecules 5, 786–792 (2004).
Google Scholar
Xu, H., Casillas, J., Krishnamoorthy, S. & Xu, C. Effects of Irgacure 2959 and lithium phenyl-2, 4, 6-trimethylbenzoylphosphinate on cell viability, physical properties, and microstructure in 3D bioprinting of vascular-like constructs. Biomed. Mater. 15, 055021 (2020).
Google Scholar
Fairbanks, B. D., Schwartz, M. P., Bowman, C. N. & Anseth, K. S. Photoinitiated polymerization of PEG-diacrylate with lithium phenyl-2, 4, 6-trimethylbenzoylphosphinate: polymerization rate and cytocompatibility. Biomaterials 30, 6702–6707 (2009).
Google Scholar
Xu, L., Sheybani, N., Yeudall, W. A. & Yang, H. The effect of photoinitiators on intracellular AKT signaling pathway in tissue engineering application. Biomater. Sci. 3, 250–255 (2015).
Google Scholar
Wray, L. S. et al. Effect of processing on silk‐based biomaterials: reproducibility and biocompatibility. J. Biomed. Mater. Res. B Appl. Biomater. 99, 89–101 (2011).
Google Scholar
Kim, J. et al. Comparison of methods for the repair of acute tympanic membrane perforations: silk patch vs. paper patch. Wound Repair Regen. 18, 132–138 (2010).
Google Scholar
Zhang, F. et al. Silk dissolution and regeneration at the nanofibril scale. J. Mater. Chem. B 2, 3879–3885 (2014).
Google Scholar
Gupta, D., Agrawal, A., Chaudhary, H., Gulrajani, M. & Gupta, C. Cleaner process for extraction of sericin using infrared. J. Clean. Prod. 52, 488–494 (2013).
Google Scholar
Dou, H. & Zuo, B. Effect of sodium carbonate concentrations on the degumming and regeneration process of silk fibroin. J. Text. Inst. 106, 311–319 (2015).
Google Scholar
You, R., Zhang, Y., Liu, Y., Liu, G. & Li, M. The degradation behavior of silk fibroin derived from different ionic liquid solvents. Natural Science 5, 10–19 (2013).
Google Scholar
Murphy, A. R. & Kaplan, D. L. Biomedical applications of chemically-modified silk fibroin. J. Mater. Chem. 19, 6443–6450 (2009).
Google Scholar
Mondal, M., Trivedy, K. & Nirmal, K. S. The silk proteins, sericin and fibroin in silkworm, Bombyx mori Linn., a review. Caspian. J. Environ. Sci. 5, 63–76 (2007).
Nichol, J. W. et al. Cell-laden microengineered gelatin methacrylate hydrogels. Biomaterials 31, 5536–5544 (2010).
Google Scholar
Yadav, D. & Gaikwad, A. Comparison and testing of tensile strength for low & medium carbon steel. Int. J. Mech. Eng. 4, 1–8 (2015).
Fergg, F., Keil, F. & Quader, H. Investigations of the microscopic structure of poly (vinyl alcohol) hydrogels by confocal laser scanning microscopy. Colloid Polym. Sci. 279, 61–67 (2001).
Google Scholar
Lee, J. S. et al. 3D-printable photocurable bioink for cartilage regeneration of tonsil-derived mesenchymal stem cells. Addit. Manuf. 33, 101136 (2020).
Google Scholar
Steehler, M. K., Hesham, H. N., Wycherly, B. J., Burke, K. M. & Malekzadeh, S. Induction of tracheal stenosis in a rabbit model—endoscopic versus open technique. Laryngoscope 121, 509–514 (2011).
Google Scholar
Den Hondt, M., Vanaudenaerde, B. M., Delaere, P. & Vranckx, J. J. Twenty years of experience with the rabbit model, a versatile model for tracheal transplantation research. Plast. Aesthetic Res. 3, 223–230 (2016).
Google Scholar
