Three-dimensional (3D) printing of hydroxyapatite-based scaffolds: A review

Bogala, Mallikharjuna Reddy

doi:10.1016/j.bprint.2022.e00244

Cited by 17 publications

(6 citation statements)

References 148 publications

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“…The bioink should have better biocompatibility, degradability, fluidity, and viscosity properties. The alginate and CaCl 2 have been widely used in inkjet bioprinting, and they are used in inkjet bioprinting methods to form alginic acid nanoparticles in CaCl 2 solutions and then assemble the particles into tubular structure[ 186 , 187 ].…”

Section: 3d Bioprinting Techniquesmentioning

confidence: 99%

Three-dimensional bioprinting of artificial blood vessel: Process, bioinks, and challenges

Hou¹,

Cui²,

Qin³

et al. 2023

IJB

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The coronary artery bypass grafting is a main treatment for restoring the blood supply to the ischemic site by bypassing the narrow part, thereby improving the heart function of the patients. Autologous blood vessels are preferred in coronary artery bypass grafting, but their availability is often limited by due to the underlying disease. Thus, tissue-engineered vascular grafts that are devoid of thrombosis and have mechanical properties comparable to those of natural vessels are urgently required for clinical applications. Most of the commercially available artificial implants are made from polymers, which are prone to thrombosis and restenosis. The biomimetic artificial blood vessel containing vascular tissue cells is the most ideal implant material. Due to its precision control ability, three-dimensional (3D) bioprinting is a promising method to prepare biomimetic system. In the 3D bioprinting process, the bioink is at the core state for building the topological structure and keeping the cell viable. Therefore, in this review, the basic properties and viable materials of the bioink are discussed, and the research of natural polymers in bioink, including decellularized extracellular matrix, hyaluronic acid, and collagen, is emphasized. Besides, the advantages of alginate and Pluronic F127, which are the mainstream sacrificial material during the preparation of artificial vascular graft, are also reviewed. Finally, an overview of the applications in the field of artificial blood vessel is also presented.

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Section: 3d Bioprinting Techniquesmentioning

confidence: 99%

Three-dimensional bioprinting of artificial blood vessel: Process, bioinks, and challenges

Hou¹,

Cui²,

Qin³

et al. 2023

IJB

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“…[69][70][71][72] The shear-thinning capability indicates that the ink has a support network with potential such as drug delivery and loaded cells. [73][74] The right level of viscoelasticity means the ink outlet is not blocked and that the fibres can be formed consistently. [75][76][77] The appropriate glue formation speed and gel mechanical properties reduce the collapse of the printing scaffold and allow the scaffold to be flexible.…”

Section: The Characteristics and Problems Of Silk-based Inksmentioning

confidence: 99%

“…The inks are designed to meet basic requirements such as shear‐thinning capability, viscoelasticity, glue formation speed and gel mechanical properties [69–72] . The shear‐thinning capability indicates that the ink has a support network with potential such as drug delivery and loaded cells [73–74] . The right level of viscoelasticity means the ink outlet is not blocked and that the fibres can be formed consistently [75–77] .…”

Section: Introductionmentioning

confidence: 99%

Cross‐Linking Strategies for Silk‐Protein‐Based Inks for 3D Printing

Dong,

Liu,

Wang

et al. 2023

ChemistrySelect

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Due to excellent biocompatibility, sufficient raw material, robust mechanical properties and easy cross‐linking, Silk Fibroin (SF) is a promising protein for 3D printing inks and an ideal candidate for 3D scaffolds in fields like regenerative medicine, bioelectronics and bio‐optics. In order to meet the requirements of print accuracy, mechanical properties and form retention capabilities, the first step is to prepare SF 3D printing inks using physical, chemical or other strategies of cross‐linking. The basic chemical groups and physical structure of SF determines its ability to form 3D networks under different conditions using various cross‐linking strategies. In the preparation of SF‐based 3D printing inks, physical, chemical or other strategies of cross‐linking improve the qualities of printing, but each strategy has its advantages and disadvantages. This paper discusses different crosslinking strategies for SF to support the development of exciting potential for SF‐based 3D printing inks to meet more needs in the future.

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“…HaP-based scaffolds have been used as described above, however pure HaP scaffolds are generally brittle. To overcome some of the stability concerns, HaP was combined with other substances for example PLA (polylactic acid) to increase mechanical strength and form stability ( 52 , 53 ). In a recent study, it was indeed demonstrated that the mechanical strength of such constructs (PLA/HA) are comparable to trabecular bone ( 53 ).…”

Section: Introductionmentioning

confidence: 99%

Balancing beauty and science: a review of facial implant materials in craniofacial surgery

Kauke-Navarro,

Knoedler,

Knoedler

et al. 2024

Front. Surg.

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Facial reconstruction and augmentation, integral in facial plastic surgery, address defects related to trauma, tumors infections, and congenital skeletal deficiencies. Aesthetic considerations, including age-related facial changes, involve volume loss and diminished projection, often associated with predictable changes in the facial skeleton. Autologous, allogeneic, and alloplastic implants are used to address these concerns. Autologous materials such as bone, cartilage, and fat, while longstanding options, have limitations, including unpredictability and resorption rates. Alloplastic materials, including metals, polymers, and ceramics, offer alternatives. Metals like titanium are biocompatible and used primarily in fracture fixation. Polymers, such as silicone and polyethylene, are widely used, with silicone presenting migration, bony resorption, and visibility issues. Polyethylene, particularly porous polyethylene (MedPor), was reported to have one of the lowest infection rates while it becomes incorporated into the host. Polyether-ether-ketone (PEEK) exhibits mechanical strength and compatibility with imaging modalities, with custom PEEK implants providing stable results. Acrylic materials, like poly-methylmethacrylate (PMMA), offer strength and is thus mostly used in the case of cranioplasty. Bioceramics, notably hydroxyapatite (HaP), offer osteoconductive and inductive properties, and HaP granules demonstrate stable volume retention in facial aesthetic augmentation. Combining HaP with other materials, such as PLA, may enhance mechanical stability. 3D bioprinting with HaP-based bioinks presents a promising avenue for customizable and biocompatible implants. In conclusion, various materials have been used for craniofacial augmentation, but none have definitively demonstrated superiority. Larger randomized controlled trials are essential to evaluate short- and long-term complications comprehensively, potentially revolutionizing facial balancing surgery.

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Three-dimensional (3D) printing of hydroxyapatite-based scaffolds: A review

Cited by 17 publications

References 148 publications

Three-dimensional bioprinting of artificial blood vessel: Process, bioinks, and challenges

Three-dimensional bioprinting of artificial blood vessel: Process, bioinks, and challenges

Cross‐Linking Strategies for Silk‐Protein‐Based Inks for 3D Printing

Balancing beauty and science: a review of facial implant materials in craniofacial surgery

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