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International Journal of Bioprinting                                         Advancements in 3D printing


















































            Figure 12. Hydrogel materials. (A) Photographs of sodium alginate(SA) solution, human-like collagen (H-A) solution, and formed hydrogel.  Copyright
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            © Springer Nature 2023. Reprinted with permission of Springer Nature. (B) Schematic illustration and photos of the CNTs-Ecoflex0.1/PNIPAm0.5 as an
            electric switch to turn on/off red and green lights under NIR irradiation.  Copyright © Elsevier 2021. Reprinted with permission of Elsevier. (C) Schematic
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            diagram of the positive and negative curvatures bending for electroactive hydrogel as a function of the separated electric field with a vertical electrode
            configuration.  Copyright © Springer Nature 2020. Reprinted with permission of Springer Nature. (D) The structure of the electric and magnetic field
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            integrated systems.  Copyright © IOP 2020. Reprinted with permission of IOP. (E) Scanning electron microscopy images of microgel@PAM/CS hydrogels
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            and typical macroscopic wound healing panorama on days 7, 11, and 15.  Copyright © American Chemical Society 2023. Reprinted with permission of
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            American Chemical Society.
            which are renowned for their exceptional mechanical   and  biocompatibility.  They  also  emerge  as  a  promising
            properties. These materials can be fashioned into artificial   interface material for artificial joints, potentially surpassing
            implants, dental crowns, and patches, restoring the function   both traditional alloy joints and conventional ceramic
            of compromised tooth tissues. Additionally, they can be   artificial joint materials (Figure 13).
            utilized to create artificial joints that replace damaged joints
            for restoring mobility and functionality. The continuously   Furthermore, hydroxyapatite and  bioactive  glass
            advancing biomedical ceramics preparation techniques have   biomedical ceramic materials have gained significant
            bequeathed ceramic artificial joints superior performance,   attention in recent years. These materials find widespread
            as compared to traditional alloy materials, in replacement   use as coatings for metallic implants or as components in
            operations of joints, such as hip, knee, shoulder, elbow,   composite implants, such as bone screws, plates, and other
            and wrist. For instance, alumina-zirconia composite   orthopedic implants. These materials capitalize on their
            ceramic joints, often referred to as “powder pottery,” have   strong biocompatibility properties, leading to substantial
            substantially improved wear resistance, chemical stability,   improvements in the osseointegration capability of


            Volume 10 Issue 2 (2024)                        59                                doi: 10.36922/ijb.1752
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