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International Journal of Bioprinting                                   Supramolecular hydrogels as bioinks






                    3D printing   method   N/A              N/A                N/A








                     Application      Biomedical   application  Biomedical   application  Clinical and   biomedical   applications






                   Self-   healing    property   No         Self-healable    Self-  healable;   remoldable


                    Drug loading/   release  No             No                 No






                 Rheological/  mechanical   properties  Mechanical   testing  Non-swellable;   excellent   stretchability   of 750–1000%;   enhanced   fracture   strength; 90%   compressive   strain; fatigue   and self-  recovery;   compressive   strength: 4 MPa  85%   compressibility;   highest storage   modulus and   compressive   stress at 2 wt%   guar gum   High tensile   strength (≈ 1.2   MPa); large   stretchability   (≈ 1300%);   outstanding   compressive   strengt






                    Reported   injectability   Yes          Yes                Yes          Abbreviations: β-CD-AOI: Isocyanatoethyl acrylate-modified β-cyclodextrin; 4-PEG: Four-armed poly(ethylene glycol); 8-PEG: Eight-armed poly(ethylene glycol); A6ACA: Acryloyl-6-aminocaproic  acid; AAP: Arylazopyrazole; Ad: Adamantane; AGP3: Agarose/gelatin/polypyrrole; A-TEG-Ad: 2-(2-{2-[2-(Adamantyl-1-oxy)ethoxy]ethoxy} ethoxy)ethanol acrylate; BA: Betulinic acid; CB[n]:  Cucurbit[




                     In vitro studies  In vitro adhesion   stress test using   porcine skin   model; in vitro   cytotoxicity; L929   fibroblast cells  No  Antimicrobial   (E. coli and S.   aureus) and anti-  inflammatory   activities; in vitro   cytotoxicity assay








                     In vivo studies   No                   No             In vivo gel disk (5 x   1 mm) implantation   study on C57BL/6   6-week-old male   mice  glycine-aspartic acid; ROB: Rat osteoblast; SCI: Spinal cord injury; UPy: Ureido pyrimidinone; UV: Ultraviolet.






                    Crosslinkage/  type   Hydrophobic   and quadruple   H-bonding;   oxime bond  Borate/didiol   bonds  H-bond   interactions   between dual   amide motifs



             Table 1. (Continued...)  Polymer/  combination  HDI-Upy-HDI and   amino-telechelic   (C 6 H 12 , C 8 H 16 , and   C 10 H 20  spacers)   PEG4k and -ONH 2 -  capped PEG-C8-  Upy-C8-PEG   copolymers 176  Borax-guar gum 177  N-acryloyl   glycinamide and   1-vinyl-1,2,4-  triazole 64










            Volume 10 Issue 3 (2024)                        24                                doi: 10.36922/ijb.3223
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