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El-Asfahani IA, Abd El-Moatty R, Mohamed GF, Hussein HA. Marginal bone loss and soft tissue health around two-implant mandibular overdenture retained with milled versus selective laser melted cobalt chromium bar: a randomized clinical trial. BMC Oral Health 2024; 24:1180. [PMID: 39367394 PMCID: PMC11452941 DOI: 10.1186/s12903-024-04883-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Accepted: 09/09/2024] [Indexed: 10/06/2024] Open
Abstract
BACKGROUND To assess marginal bone loss and soft tissue health around two-implant mandibular overdenture retained with milled versus selective laser-melted cobalt chromium (Co-Cr) bars. METHOD This research was set to be a parallel, triple-blinded, randomised controlled trial. Twenty completely edentulous patients received new conventional complete dentures according to conventional techniques. Two implants were placed at mandibular canine areas bilaterally, and patients were randomly allocated into two equal groups: the milled Co-Cr bar group and the selective laser melted (SLM) Co-Cr bar group. Marginal bone loss (MBL), modified plaque index (mPI), modified gingival index (mGI), and probing depth (PD) were evaluated at 0-month (baseline), 6-month, and 12-month follow-up visits. Repeated measures ANOVA test and Bonferroni's post-hoc test were used for parametric data as PD, while for non-parametric data as MBL, mGI, and mPI, Mann-Whitney U test and Friedman's test were used. A P-value ≤ 0.05 was set as the statistical level of significance. The study protocol was approved by the Faculty Research Ethics Committee at Minia University (636 4/10/2022). Registration for the clinical trial was made retrospectively on clinicaltrials.gov with ID NCT06401200 at 04/30/2024. RESULTS The follow-up period (one year) was completed without a dropout. Regarding MBL, no statistically significant difference was found between the two groups throughout the study. However, the milled group showed significantly increased MBL from 0- to 6-month follow up period. In both groups, mPI increased significantly from 0- to 6-months post-loading. On the other hand, no statistically significant difference between the two groups was found regarding mPI and mGI throughout the study follow-up periods. The PD was significantly lower in the milled compared to the SLM group at the 6- and 12-month follow up period. CONCLUSION Two-implant mandibular overdenture retained with milled or SLM Co-Cr bar can provide an acceptable treatment option for completely edentulous patients regarding marginal bone loss and soft tissue outcomes.
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Affiliation(s)
| | - Reem Abd El-Moatty
- Department of Prosthodontics, Faculty of Dentistry, Minia University, Minya, Egypt
| | - Gehan Fekry Mohamed
- Department of Prosthodontics, Faculty of Dentistry, Minia University, Minya, Egypt
- Department of Prosthodontics, Faculty of Dentistry, Sinai University, North Sinai Governorate, Egypt
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Rabel K, Lüchtenborg J, Linke M, Burkhardt F, Roesner AJ, Nold J, Vach K, Witkowski S, Hillebrecht AL, Spies BC. 3D printed versus milled stabilization splints for the management of bruxism and temporomandibular disorders: study protocol for a randomized prospective single-blinded crossover trial. Trials 2024; 25:589. [PMID: 39238023 PMCID: PMC11376033 DOI: 10.1186/s13063-024-08437-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 08/27/2024] [Indexed: 09/07/2024] Open
Abstract
BACKGROUND Nowadays, stabilization splints for the management of bruxism and temporomandibular disorders (TMD) can be produced utilizing a digital workflow comprising a digital impression of the teeth, digital splint design, and computer-aided manufacturing of the splints. The latter is usually a milling process, however, more recently 3D printing gained popularity due to its better cost and time efficiency. It remains unknown whether 3D printed stabilization splints are inferior to milled splints regarding clinical outcomes. METHODS This clinical trial assesses the non-inferiority of 3D printed occlusal splints compared to milled occlusal splints in a monocentric prospective randomized single-blinded crossover trial with two cohorts. One cohort includes 20 participants with bruxism, the other 20 participants with pain-related TMD, i.e., myalgia, myofascial pain, or arthralgia of the jaw muscles/the temporomandibular joint(s) diagnosed according to the Diagnostic Criteria for Temporomandibular Disorders (DC/TMD). Michigan-type stabilization splints are fabricated in a digital workflow by milling or 3D printing using CE-marked materials within their intended purpose. The participants wear a milled and a 3D printed splint in a randomized order for 3 months each, with follow-up visits after 2 weeks and 3 months. Investigated outcome parameters are oral health-related quality of life (OHRQoL) evaluated by the Oral Health Impact Profile (OHIP-G14), participant satisfaction as rated on a visual analog scale, therapeutic efficacy, and technical result of the splints. In this context, therapeutic efficacy means antagonist wear and-in the TMD group-reduction of pain/disability assessed by the Graded Chronic Pain Scale (GCPS v2.0) and clinical assessment following the DC/TMD standard, while technical outcome measures splint fit, wear and fracture rate. DISCUSSION The trial will provide important information on the clinical outcome of 3D printed stabilization splints in comparison to milled splints and will, therefore, enable an evidence-based decision in favor of or against a manufacturing process. This, in turn, will guarantee for a maximum of the patient's OHRQoL during splint therapy, therapeutic efficacy, and longevity of the splints. TRIAL REGISTRATION German Clinical Trials Register (DRKS) DRKS00033904. Registered on March 15, 2024.
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Affiliation(s)
- Kerstin Rabel
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany.
| | - Jörg Lüchtenborg
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Marie Linke
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Felix Burkhardt
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Anuschka J Roesner
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Julian Nold
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Kirstin Vach
- Institute of Medical Biometry and Statistics, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Stefan-Meier-Str. 26, Freiburg, 79104, Germany
| | - Siegbert Witkowski
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Anna-Lena Hillebrecht
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Benedikt C Spies
- Department of Prosthetic Dentistry, Center for Dental Medicine, Medical Center ‑ University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetterstr. 55, 79106, Freiburg, Germany
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Wang KC, Ryan JR, Chepelev L, Wake N, Quigley EP, Santiago L, Wentworth A, Alexander A, Morris JM, Fleischmann D, Ballard DH, Ravi P, Hirsch JD, Sturgeon GM, Huang YH, Decker SJ, von Windheim N, Pugliese RS, Hidalgo RV, Patel P, Colon J, Thieringer FM, Rybicki FJ. Demographics, Utilization, Workflow, and Outcomes Based on Observational Data From the RSNA-ACR 3D Printing Registry. J Am Coll Radiol 2024:S1546-1440(24)00684-7. [PMID: 39117182 DOI: 10.1016/j.jacr.2024.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024]
Abstract
PURPOSE The aim of this study was to report data from the first 3 years of operation of the RSNA-ACR 3D Printing Registry. METHODS Data from June 2020 to June 2023 were extracted, including demographics, indications, workflow, and user assessments. Clinical indications were stratified by 12 organ systems. Imaging modalities, printing technologies, and numbers of parts per case were assessed. Effort data were analyzed, dividing staff members into provider and nonprovider categories. The opinions of clinical users were evaluated using a Likert scale questionnaire, and estimates of procedure time saved were collected. RESULTS A total of 20 sites and 2,637 cases were included, consisting of 1,863 anatomic models and 774 anatomic guides. Mean patient ages for models and guides were 42.4 ± 24.5 years and 56.3 ± 18.5 years, respectively. Cardiac models were the most common type of model (27.2%), and neurologic guides were the most common type of guide (42.4%). Material jetting, vat photopolymerization, and material extrusion were the most common printing technologies used overall (85.6% of all cases). On average, providers spent 92.4 min and nonproviders spent 335.0 min per case. Providers spent most time on consultation (33.6 min), while nonproviders focused most on segmentation (148.0 min). Confidence in treatment plans increased after using 3-D printing (P < .001). Estimated procedure time savings for 155 cases was 40.5 ± 26.1 min. CONCLUSIONS Three-dimensional printing is performed at health care facilities for many clinical indications. The registry provides insight into the technologies and workflows used to create anatomic models and guides, and the data show clinical benefits from 3-D printing.
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Affiliation(s)
- Kenneth C Wang
- Imaging Service, Baltimore VA Medical Center, Baltimore, Maryland; Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland; and Co-chair, 3D Printing Registry Committee, American College of Radiology.
| | - Justin R Ryan
- 3D Innovations Lab, Rady Children's Hospital, San Diego, California; and Department of Neurological Surgery, University of California San Diego Health, San Diego, California
| | - Leonid Chepelev
- Joint Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Nicole Wake
- Director, Department of Research and Scientific Affairs, GE Healthcare, New York, New York; and Department of Radiology, NYU Grossman School of Medicine, New York, New York. https://twitter.com/Wake_Imaging
| | - Edward P Quigley
- Department of Radiology and Imaging Sciences, University of Utah School of Medicine, Salt Lake City, Utah
| | - Lumarie Santiago
- Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas. https://twitter.com/LumarieSantiago
| | - Adam Wentworth
- Department of Radiology, Mayo Clinic, Rochester, Minnesota
| | - Amy Alexander
- Division of Engineering, Mayo Clinic, Rochester, Minnesota. https://twitter.com/AmyAlexanderMC
| | - Jonathan M Morris
- Department of Radiology, Mayo Clinic, Rochester, Minnesota; Leadership roles: Executive Medical Director, Immersive and Experiential Learning, Mayo Clinic; Medical Director, Anatomic Modeling Unit, Mayo Clinic; and Medical Director, Biomedical and Scientific Visualization, Mayo Clinic
| | - Dominik Fleischmann
- Department of Radiology, Stanford University School of Medicine, Palo Alto, California; Director, Computed Tomography, Stanford University; Chief, Cardiovascular Imaging, Stanford University; and Medical Director, 3DQ Lab, Stanford University
| | - David H Ballard
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, Missouri. https://twitter.com/DavidBallardMD
| | - Prashanth Ravi
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jeffrey D Hirsch
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Gregory M Sturgeon
- Duke Children's Pediatric and Congenital Heart Center, Durham, North Carolina
| | - Yu-Hui Huang
- Department of Radiology, University of Minnesota, Minneapolis, Minnesota. https://twitter.com/yuhuihuang
| | - Summer J Decker
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, California; Department of Radiology, University of South Florida, Morsani College of Medicine, Tampa, Florida; and Director, Center for Advanced Visualization Technologies in Medicine, University of Southern California
| | - Natalia von Windheim
- Department of Otolaryngology-Head and Neck Surgery, The Ohio State University, Columbus, Ohio; and KLS Martin, Jacksonville, Florida
| | - Robert S Pugliese
- Health Design Lab, Thomas Jefferson University, Philadelphia, Pennsylvania. https://twitter.com/RSPugliese
| | - Ronald V Hidalgo
- Imagineering Lab, Southern Illinois University School of Medicine, Springfield, Illinois; and Department of Radiology, Springfield Clinic, Springfield, Illinois
| | | | - Joseb Colon
- Atrium Health Levine Children's HEARTest Yard Congenital Heart Center, Charlotte, North Carolina
| | - Florian M Thieringer
- Chair, Department of Oral and Cranio-Maxillofacial Surgery, and 3D Print Lab, University Hospital Basel, Basel, Switzerland; and Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Frank J Rybicki
- Chair, Department of Radiology, University of Arizona College of Medicine, Phoenix, Arizona; Department of Radiology, Banner University Medical Group, Phoenix, Arizona; and Co-chair, 3D Printing Registry Committee, American College of Radiology. https://twitter.com/FrankRybicki
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Salih T, Caputo M, Ghorbel MT. Recent Advances in Hydrogel-Based 3D Bioprinting and Its Potential Application in the Treatment of Congenital Heart Disease. Biomolecules 2024; 14:861. [PMID: 39062575 PMCID: PMC11274841 DOI: 10.3390/biom14070861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
Congenital heart disease (CHD) is the most common birth defect, requiring invasive surgery often before a child's first birthday. Current materials used during CHD surgery lack the ability to grow, remodel, and regenerate. To solve those limitations, 3D bioprinting is an emerging tool with the capability to create tailored constructs based on patients' own imaging data with the ability to grow and remodel once implanted in children with CHD. It has the potential to integrate multiple bioinks with several cell types and biomolecules within 3D-bioprinted constructs that exhibit good structural fidelity, stability, and mechanical integrity. This review gives an overview of CHD and recent advancements in 3D bioprinting technologies with potential use in the treatment of CHD. Moreover, the selection of appropriate biomaterials based on their chemical, physical, and biological properties that are further manipulated to suit their application are also discussed. An introduction to bioink formulations composed of various biomaterials with emphasis on multiple cell types and biomolecules is briefly overviewed. Vasculogenesis and angiogenesis of prefabricated 3D-bioprinted structures and novel 4D printing technology are also summarized. Finally, we discuss several restrictions and our perspective on future directions in 3D bioprinting technologies in the treatment of CHD.
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Affiliation(s)
- Tasneem Salih
- Bristol Heart Institute, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK; (T.S.); (M.C.)
| | - Massimo Caputo
- Bristol Heart Institute, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK; (T.S.); (M.C.)
- Cardiac Surgery, University Hospitals Bristol, NHS Foundation Trust, Bristol BS2 8HW, UK
| | - Mohamed T. Ghorbel
- Bristol Heart Institute, Bristol Medical School, University of Bristol, Bristol BS2 8HW, UK; (T.S.); (M.C.)
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Barcena AJR, Ravi P, Kundu S, Tappa K. Emerging Biomedical and Clinical Applications of 3D-Printed Poly(Lactic Acid)-Based Devices and Delivery Systems. Bioengineering (Basel) 2024; 11:705. [PMID: 39061787 PMCID: PMC11273440 DOI: 10.3390/bioengineering11070705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 07/06/2024] [Accepted: 07/07/2024] [Indexed: 07/28/2024] Open
Abstract
Poly(lactic acid) (PLA) is widely used in the field of medicine due to its biocompatibility, versatility, and cost-effectiveness. Three-dimensional (3D) printing or the systematic deposition of PLA in layers has enabled the fabrication of customized scaffolds for various biomedical and clinical applications. In tissue engineering and regenerative medicine, 3D-printed PLA has been mostly used to generate bone tissue scaffolds, typically in combination with different polymers and ceramics. PLA's versatility has also allowed the development of drug-eluting constructs for the controlled release of various agents, such as antibiotics, antivirals, anti-hypertensives, chemotherapeutics, hormones, and vitamins. Additionally, 3D-printed PLA has recently been used to develop diagnostic electrodes, prostheses, orthoses, surgical instruments, and radiotherapy devices. PLA has provided a cost-effective, accessible, and safer means of improving patient care through surgical and dosimetry guides, as well as enhancing medical education through training models and simulators. Overall, the widespread use of 3D-printed PLA in biomedical and clinical settings is expected to persistently stimulate biomedical innovation and revolutionize patient care and healthcare delivery.
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Affiliation(s)
- Allan John R. Barcena
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Prashanth Ravi
- Department of Radiology, University of Cincinnati, Cincinnati, OH 45219, USA;
| | - Suprateek Kundu
- Department of Biostatistics, Division of Basic Science Research, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Karthik Tappa
- Department of Breast Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Lee SY, Chew SCC, Lee PH, Chen HD, Huang SM, Liu CH, Chew FY. Accuracy and feasibility in building a personalized 3D printed femoral pseudoaneurysm model for endovascular training. PLoS One 2024; 19:e0304506. [PMID: 38829913 PMCID: PMC11146720 DOI: 10.1371/journal.pone.0304506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/13/2024] [Indexed: 06/05/2024] Open
Abstract
BACKGROUND The use of three-dimensional(3D) printing is broadly across many medical specialties. It is an innovative, and rapidly growing technology to produce custom anatomical models and medical conditions models for medical teaching, surgical planning, and patient education. This study aimed to evaluate the accuracy and feasibility of 3D printing in creating a superficial femoral artery pseudoaneurysm model based on CT scans for endovascular training. METHODS A case of a left superficial femoral artery pseudoaneurysm was selected, and the 3D model was created using DICOM files imported into Materialise Mimics 22.0 and Materialise 3-Matic software, then printed using vat polymerization technology. Two 3D-printed models were created, and a series of comparisons were conducted between the 3D segmented images from CT scans and these two 3D-printed models. Ten comparisons involving internal diameters and angles of the specific anatomical location were measured. RESULTS The study found that the absolute mean difference in diameter between the 3D segmented images and the 3D printed models was 0.179±0.145 mm and 0.216±0.143mm, respectively, with no significant difference between the two sets of models. Additionally, the absolute mean difference in angle was 0.99±0.65° and 1.00±0.91°, respectively, and the absolute mean difference in angle between the two sets of data was not significant. Bland-Altman analysis confirmed a high correlation in dimension measurements between the 3D-printed models and segmented images. Furthermore, the accuracy of a 3D-printed femoral pseudoaneurysm model was further tested through the simulation of a superficial femoral artery pseudoaneurysm coiling procedure using the Philips Azurion7 in the angiography room. CONCLUSIONS 3D printing is a reliable technique for producing a high accuracy 3D anatomical model that closely resemble a patient's anatomy based on CT images. Additionally, 3D printing is a feasible and viable option for use in endovascular training and medical education. In general, 3D printing is an encouraging technology with diverse possibilities in medicine, including surgical planning, medical education, and medical device advancement.
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Affiliation(s)
- Suat Yee Lee
- Department of Pathology, Chung Shan Medical University Hospital, Taichung, Taiwan
- Department of Pathology, School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | | | - Pei Hua Lee
- Department of Medical Imaging, China Medical University Hospital, Taichung, Taiwan
| | - Hung Da Chen
- Department of Medical Imaging, China Medical University Hospital, Taichung, Taiwan
| | - Shao Min Huang
- Department of Medicine, Show Chwan Memorial Hospital, Chang Hua, Taiwan
| | - Chun Hung Liu
- Department of Medical Imaging, China Medical University Hospital, Taichung, Taiwan
| | - Fatt Yang Chew
- Department of Medical Imaging, China Medical University Hospital, Taichung, Taiwan
- Department of Radiology, School of Medicine, China Medical University, Taichung, Taiwan
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Barakeh W, Zein O, Hemdanieh M, Sleem B, Nassereddine M. Enhancing Hip Arthroplasty Outcomes: The Multifaceted Advantages, Limitations, and Future Directions of 3D Printing Technology. Cureus 2024; 16:e60201. [PMID: 38868274 PMCID: PMC11167579 DOI: 10.7759/cureus.60201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2024] [Indexed: 06/14/2024] Open
Abstract
In the evolving field of orthopedic surgery, the integration of three-dimensional printing (3D printing) has emerged as a transformative technology, particularly in addressing the rising incidence of degenerative joint diseases. The integration of 3D printing technology in hip arthroplasty offers substantial advantages throughout the surgical process. In preoperative planning, 3D models enable meticulous assessments, aiding in accurate implant selection and precise surgical strategies. Intraoperatively, the technology contributes to precise prosthesis design, reducing operation duration, X-ray exposures, and blood loss. Beyond surgery, 3D printing revolutionizes medical equipment production, imaging, and implant design, showcasing benefits such as enhanced osseointegration and reduced stress shielding with titanium cups. Challenges include a higher risk of postoperative infection due to the porous surfaces of 3D-printed implants, technical complexities in the printing process, and the need for skilled manpower. Despite these challenges, the evolving nature of 3D printing technologies underscores the importance of relying on existing orthopedic surgical practices while emphasizing the need for standardized guidelines to fully harness its potential in improving patient care.
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Affiliation(s)
- Wael Barakeh
- Orthopedic Surgery, American University of Beirut, Beirut, LBN
| | - Omar Zein
- Orthopedic Surgery, American University of Beirut, Beirut, LBN
| | - Maya Hemdanieh
- Orthopedic Surgery, American University of Beirut, Beirut, LBN
| | - Bshara Sleem
- Orthopedic Surgery, American University of Beirut, Beirut, LBN
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Peng H, Han B, Tong T, Jin X, Peng Y, Guo M, Li B, Ding J, Kong Q, Wang Q. 3D printing processes in precise drug delivery for personalized medicine. Biofabrication 2024; 16:10.1088/1758-5090/ad3a14. [PMID: 38569493 PMCID: PMC11164598 DOI: 10.1088/1758-5090/ad3a14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 04/03/2024] [Indexed: 04/05/2024]
Abstract
With the advent of personalized medicine, the drug delivery system will be changed significantly. The development of personalized medicine needs the support of many technologies, among which three-dimensional printing (3DP) technology is a novel formulation-preparing process that creates 3D objects by depositing printing materials layer-by-layer based on the computer-aided design method. Compared with traditional pharmaceutical processes, 3DP produces complex drug combinations, personalized dosage, and flexible shape and structure of dosage forms (DFs) on demand. In the future, personalized 3DP drugs may supplement and even replace their traditional counterpart. We systematically introduce the applications of 3DP technologies in the pharmaceutical industry and summarize the virtues and shortcomings of each technique. The release behaviors and control mechanisms of the pharmaceutical DFs with desired structures are also analyzed. Finally, the benefits, challenges, and prospects of 3DP technology to the pharmaceutical industry are discussed.
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Affiliation(s)
- Haisheng Peng
- Department of Pharmacology, Medical College, University of Shaoxing, Shaoxing, People’s Republic of China
- These authors contributed equally
| | - Bo Han
- Department of Pharmacy, Daqing Branch, Harbin Medical University, Daqing, People’s Republic of China
- These authors contributed equally
| | - Tianjian Tong
- Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011, United States of America
| | - Xin Jin
- Department of Pharmacology, Medical College, University of Shaoxing, Shaoxing, People’s Republic of China
| | - Yanbo Peng
- Department of Pharmaceutical Engineering, China Pharmaceutical University, 639 Longmian Rd, Nanjing 211198, People’s Republic of China
| | - Meitong Guo
- Department of Pharmacology, Medical College, University of Shaoxing, Shaoxing, People’s Republic of China
| | - Bian Li
- Department of Pharmacology, Medical College, University of Shaoxing, Shaoxing, People’s Republic of China
| | - Jiaxin Ding
- Department of Pharmacology, Medical College, University of Shaoxing, Shaoxing, People’s Republic of China
| | - Qingfei Kong
- Department of Neurobiology, Harbin Medical University, Heilongjiang Provincial Key Laboratory of Neurobiology, Harbin, Heilongjiang 150086, People’s Republic of China
| | - Qun Wang
- Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011, United States of America
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Zhou S, Zhao Y, Xun Y, Wei Z, Yang Y, Yan W, Ding J. Programmable and Modularized Gas Sensor Integrated by 3D Printing. Chem Rev 2024; 124:3608-3643. [PMID: 38498933 DOI: 10.1021/acs.chemrev.3c00853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
The rapid advancement of intelligent manufacturing technology has enabled electronic equipment to achieve synergistic design and programmable optimization through computer-aided engineering. Three-dimensional (3D) printing, with the unique characteristics of near-net-shape forming and mold-free fabrication, serves as an effective medium for the materialization of digital designs into usable devices. This methodology is particularly applicable to gas sensors, where performance can be collaboratively optimized by the tailored design of each internal module including composition, microstructure, and architecture. Meanwhile, diverse 3D printing technologies can realize modularized fabrication according to the application requirements. The integration of artificial intelligence software systems further facilitates the output of precise and dependable signals. Simultaneously, the self-learning capabilities of the system also promote programmable optimization for the hardware, fostering continuous improvement of gas sensors for dynamic environments. This review investigates the latest studies on 3D-printed gas sensor devices and relevant components, elucidating the technical features and advantages of different 3D printing processes. A general testing framework for the performance evaluation of customized gas sensors is proposed. Additionally, it highlights the superiority and challenges of programmable and modularized gas sensors, providing a comprehensive reference for material adjustments, structure design, and process modifications for advanced gas sensor devices.
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Affiliation(s)
- Shixiang Zhou
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
| | - Yijing Zhao
- Department of Mechanical Engineering, National University of Singapore, 117575, Singapore
| | - Yanran Xun
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
| | - Zhicheng Wei
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
| | - Yong Yang
- Temasek Laboratories, National University of Singapore, 5A Engineering Drive 1, 117411, Singapore
| | - Wentao Yan
- Department of Mechanical Engineering, National University of Singapore, 117575, Singapore
| | - Jun Ding
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
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Barcena AJR, Dhal K, Patel P, Ravi P, Kundu S, Tappa K. Current Biomedical Applications of 3D-Printed Hydrogels. Gels 2023; 10:8. [PMID: 38275845 PMCID: PMC10815850 DOI: 10.3390/gels10010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
Three-dimensional (3D) printing, also known as additive manufacturing, has revolutionized the production of physical 3D objects by transforming computer-aided design models into layered structures, eliminating the need for traditional molding or machining techniques. In recent years, hydrogels have emerged as an ideal 3D printing feedstock material for the fabrication of hydrated constructs that replicate the extracellular matrix found in endogenous tissues. Hydrogels have seen significant advancements since their first use as contact lenses in the biomedical field. These advancements have led to the development of complex 3D-printed structures that include a wide variety of organic and inorganic materials, cells, and bioactive substances. The most commonly used 3D printing techniques to fabricate hydrogel scaffolds are material extrusion, material jetting, and vat photopolymerization, but novel methods that can enhance the resolution and structural complexity of printed constructs have also emerged. The biomedical applications of hydrogels can be broadly classified into four categories-tissue engineering and regenerative medicine, 3D cell culture and disease modeling, drug screening and toxicity testing, and novel devices and drug delivery systems. Despite the recent advancements in their biomedical applications, a number of challenges still need to be addressed to maximize the use of hydrogels for 3D printing. These challenges include improving resolution and structural complexity, optimizing cell viability and function, improving cost efficiency and accessibility, and addressing ethical and regulatory concerns for clinical translation.
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Affiliation(s)
- Allan John R. Barcena
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Kashish Dhal
- Department of Mechanical & Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USA; (K.D.); (P.P.)
| | - Parimal Patel
- Department of Mechanical & Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USA; (K.D.); (P.P.)
| | - Prashanth Ravi
- Department of Radiology, University of Cincinnati, Cincinnati, OH 45219, USA;
| | - Suprateek Kundu
- Department of Biostatistics, Division of Basic Science Research, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Karthik Tappa
- Department of Breast Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Wang K, Wang D, Liu Y, Gao H, Yang C, Peng Y. Path Planning and Bending Behaviors of 3D Printed Continuous Carbon Fiber Reinforced Polymer Honeycomb Structures. Polymers (Basel) 2023; 15:4485. [PMID: 38231906 PMCID: PMC10708446 DOI: 10.3390/polym15234485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/09/2023] [Accepted: 11/18/2023] [Indexed: 01/19/2024] Open
Abstract
Continuous fiber reinforced polymer composites are widely used in load-bearing components and energy absorbers owing to their high specific strength and high specific modulus. The path planning of continuous fiber is closely related to its structural defects and mechanical properties. In this work, continuous fiber reinforced polymer honeycomb structures (CFRPHSs) with different printing paths were designed and fabricated via the fused deposition modeling (FDM) technique. The investigation of fiber dislocation at path corners was utilized to analyze the structural defects of nodes caused by printing paths. The lower stiffness nodes filled with pure polymer due to fiber dislocation result in uneven stiffness distribution. The bending performance and deformation modes of CFRPHSs with different printing paths and corresponding pure polymer honeycomb structures were investigated by three-point bending tests. The results showed that the enhancement effect of continuous fibers on the bending performance of honeycomb structures was significantly affected by the printing paths. The CFRPHSs with a staggered trapezoidal path exhibited the highest specific load capacity (68.33 ± 2.25 N/g) and flexural stiffness (627.70 ± 38.78 N/mm). In addition, the fiber distributions and structural defects caused by the printing paths determine the stiffness distribution of the loading region, thereby affecting the stress distribution and failure modes of CFRPHSs.
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Affiliation(s)
| | | | - Yisen Liu
- Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha 410075, China; (K.W.); (D.W.); (H.G.); (Y.P.)
| | | | - Chengxing Yang
- Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha 410075, China; (K.W.); (D.W.); (H.G.); (Y.P.)
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12
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Ahmed S, Hussain R, Khan A, Batool SA, Mughal A, Nawaz MH, Irfan M, Wadood A, Avcu E, Rehman MAU. 3D Printing Assisted Fabrication of Copper-Silver Mesoporous Bioactive Glass Nanoparticles Reinforced Sodium Alginate/Poly(vinyl alcohol) Based Composite Scaffolds: Designed for Skin Tissue Engineering. ACS APPLIED BIO MATERIALS 2023; 6:5052-5066. [PMID: 37857344 DOI: 10.1021/acsabm.3c00726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Additive manufacturing (also known as 3D printing) is a promising method for producing patient-specific implants. In the present study, sodium alginate (Na-ALG)/poly(vinyl alcohol) (PVA) polymer blends of varying ratios (1:0, 3:1, 1:1, and 1:3) were used to produce tailored-designed skin scaffolds using a 3D bioprinter. Samples of skin scaffolds were printed at 20 layers with a layer height of 0.15 mm using a needle with an inner diameter of 330 μm while maintaining the extrusion speed, extrusion width, and fill density at 10 mm/s, 0.2 mm, and 85%, respectively. The Na-ALG/PVA blend with a 3:1 ratio showed the best printability due to its good viscosity and minimal nozzle leakage, allowing for the fabrication of skin scaffolds with high fidelity and the desired morphological characteristics. Then, copper-silver doped mesoporous bioactive glass nanoparticles (Cu-Ag MBGNs) were incorporated into the Na-ALG/PVA blend (which had already been prepared by using a Na-ALG:PVA ratio of 3:1) in order to obtain therapeutic (angiogenic and antibacterial) effects. The fabricated Na-ALG/PVA/Cu-Ag MBGNs biocomposite scaffolds with dimensions of 20 mm× 20 × 3 mm3 and pore size of 400 ± 60 μm exhibited a promising fidelity. The presence of chemical bonds attributed to Na-ALG, PVA, and Cu-Ag MBGNs and the uniform distribution of Na, C, and O elements within the microstructure of the scaffolds were confirmed by EDX, SEM, and FTIR analyses. The scaffolds were hydrophilic and exhibited proper swelling and degradation behavior for skin tissue engineering. According to the inhibition halo test, the scaffolds exhibited strong antibacterial activity against Staphylococcus aureus and Escherichia coli. The cytocompatibility to human-derived fibroblast cells was confirmed by the WST-8 assay and in vivo Chorioallantoic Membrane Assay. In addition, Na-ALG/PVA/Cu-Ag MBGNs showed angiogenic potential, exhibiting favorable wound healing properties.
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Affiliation(s)
- Sheraz Ahmed
- Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan
| | - Rabia Hussain
- Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan
| | - Ahmad Khan
- Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan
| | - Syeda Ammara Batool
- Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan
| | - Awab Mughal
- Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan
| | - Muhammad Haseeb Nawaz
- Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan
| | - Muhammad Irfan
- School of Chemical and Materials Engineering, National University of Science & Technology, Islamabad 44000, Pakistan
| | - Abdul Wadood
- Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan
| | - Egemen Avcu
- Department of Mechanical Engineering, Institute of Natural and Applied Sciences, Kocaeli University, Kocaeli 41001, Turkey
- Department of Machine and Metal Technologies, Ford Otosan Ihsaniye Automotive Vocational School, Kocaeli University, Kocaeli 41650, Turkey
| | - Muhammad Atiq Ur Rehman
- Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan
- Centre of Excellence in Biomaterials and Tissue Engineering, Government College University, Lahore, 54000, Pakistan
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13
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Wersényi G, Scheper V, Spagnol S, Eixelberger T, Wittenberg T. Cost-effective 3D scanning and printing technologies for outer ear reconstruction: current status. Head Face Med 2023; 19:46. [PMID: 37891625 PMCID: PMC10612312 DOI: 10.1186/s13005-023-00394-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Current 3D scanning and printing technologies offer not only state-of-the-art developments in the field of medical imaging and bio-engineering, but also cost and time effective solutions for surgical reconstruction procedures. Besides tissue engineering, where living cells are used, bio-compatible polymers or synthetic resin can be applied. The combination of 3D handheld scanning devices or volumetric imaging, (open-source) image processing packages, and 3D printers form a complete workflow chain that is capable of effective rapid prototyping of outer ear replicas. This paper reviews current possibilities and latest use cases for 3D-scanning, data processing and printing of outer ear replicas with a focus on low-cost solutions for rehabilitation engineering.
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Affiliation(s)
| | - Verena Scheper
- Department of Otolaryngology, Hannover Medical School, Hannover, D-30625, Germany
| | | | - Thomas Eixelberger
- Friedrich-Alexander-University Erlangen-Nuremberg & Fraunhofer Institute for Integrated Circuits IIS, Erlangen, D-91058, Germany
| | - Thomas Wittenberg
- Friedrich-Alexander-University Erlangen-Nuremberg & Fraunhofer Institute for Integrated Circuits IIS, Erlangen, D-91058, Germany
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14
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He J, Sun Y, Gao Q, He C, Yao K, Wang T, Xie M, Yu K, Nie J, Chen Y, He Y. Gelatin Methacryloyl Hydrogel, from Standardization, Performance, to Biomedical Application. Adv Healthc Mater 2023; 12:e2300395. [PMID: 37115708 DOI: 10.1002/adhm.202300395] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/23/2023] [Indexed: 04/29/2023]
Abstract
Gelatin methacryloyl (GelMA), a photocurable hydrogel, is widely used in 3D culture, particularly in 3D bioprinting, due to its high biocompatibility, tunable physicochemical properties, and excellent formability. However, as the properties and performances of GelMA vary under different synthetic conditions, there is a lack of standardization, leading to conflicting results. In this study, a uniform standard is established to understand and enhance GelMA applications. First, the basic concept of GelMA and the density of the molecular network (DMN) are defined. Second, two properties, degrees of substitution and ratio of solid content, as the main measurable parameters determining the DMN are used. Third, the mechanisms and relationships between DMN and its performance in various applications in terms of porosity, viscosity, formability, mechanical strength, swelling, biodegradation, and cytocompatibility are theoretically explained. The main questions that are answered: what does performance mean, why is it important, how to optimize the basic parameters to improve the performance, and how to characterize it reasonably and accurately? Finally, it is hoped that this knowledge will eliminate the need for researchers to conduct tedious and repetitive pre-experiments, enable easy communication for achievements between groups under the same standard, and fully explore the potential of the GelMA hydrogel.
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Affiliation(s)
- Jing He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yuan Sun
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qing Gao
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
- Engineering for Life Group (EFL), Suzhou, 215101, China
| | - Chanfan He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ke Yao
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Tongyao Wang
- State Key Laboratory of Catalysis, National Laboratory for Clean Energy, 2011-Collaborative Innovation Center of Chemistry for Energy Materials, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingjun Xie
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
- Plastic and Reconstructive Surgery Center, Department of Plastic and Reconstructive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Kang Yu
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jing Nie
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yuewei Chen
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
- Engineering for Life Group (EFL), Suzhou, 215101, China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
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15
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Öztürk-Öncel MÖ, Leal-Martínez BH, Monteiro RF, Gomes ME, Domingues RMA. A dive into the bath: embedded 3D bioprinting of freeform in vitro models. Biomater Sci 2023; 11:5462-5473. [PMID: 37489648 PMCID: PMC10408712 DOI: 10.1039/d3bm00626c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 07/19/2023] [Indexed: 07/26/2023]
Abstract
Designing functional, vascularized, human scale in vitro models with biomimetic architectures and multiple cell types is a highly promising strategy for both a better understanding of natural tissue/organ development stages to inspire regenerative medicine, and to test novel therapeutics on personalized microphysiological systems. Extrusion-based 3D bioprinting is an effective biofabrication technology to engineer living constructs with predefined geometries and cell patterns. However, bioprinting high-resolution multilayered structures with mechanically weak hydrogel bioinks is challenging. The advent of embedded 3D bioprinting systems in recent years offered new avenues to explore this technology for in vitro modeling. By providing a stable, cell-friendly and perfusable environment to hold the bioink during and after printing, it allows to recapitulate native tissues' architecture and function in a well-controlled manner. Besides enabling freeform bioprinting of constructs with complex spatial organization, support baths can further provide functional housing systems for their long-term in vitro maintenance and screening. This minireview summarizes the recent advances in this field and discuss the enormous potential of embedded 3D bioprinting technologies as alternatives for the automated fabrication of more biomimetic in vitro models.
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Affiliation(s)
- M Özgen Öztürk-Öncel
- 3B's Research Group I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia Zona Industrial da Gandra Barco, Guimarães 4805-017, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Baltazar Hiram Leal-Martínez
- 3B's Research Group I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia Zona Industrial da Gandra Barco, Guimarães 4805-017, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rosa F Monteiro
- 3B's Research Group I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia Zona Industrial da Gandra Barco, Guimarães 4805-017, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Manuela E Gomes
- 3B's Research Group I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia Zona Industrial da Gandra Barco, Guimarães 4805-017, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui M A Domingues
- 3B's Research Group I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Parque de Ciência e Tecnologia Zona Industrial da Gandra Barco, Guimarães 4805-017, Portugal.
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
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16
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Rani P, Yadav V, Pandey P, Yadav K. Recent patent-based review on the role of three-dimensional printing technology in pharmaceutical and biomedical applications. Pharm Pat Anal 2023; 12:159-175. [PMID: 37882734 DOI: 10.4155/ppa-2023-0018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Three-dimensional printing (3DP) is emerging as an innovative manufacturing technology for biomedical and pharmaceutical applications, since the US FDA approval of Spritam as a 3D-printed drug. In the present review, we have highlighted the potential benefits of 3DP technology in healthcare, such as the ability to create patient-specific medical devices and implants, as well as the possibility of on-demand production of drugs and personalized dosage forms. We have further discussed future research to optimize 3DP processes and materials for pharmaceutical and biomedical applications. Cohesively, we have put forward the current state of active patents and applications related to 3DP technology in the healthcare and pharmaceutical industries including hearing aids, prostheses, medical devices and drug-delivery systems.
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Affiliation(s)
- Palak Rani
- Chandigarh College of Pharmacy, Chandigarh Group of Colleges, Mohali, 140307, Punjab, India
| | - Vikas Yadav
- Department of Translational Medicine, Clinical Research Centre, Skane University Hospital, Lund University, Malmö SE-20213, Sweden
| | - Parijat Pandey
- Department of Pharmaceutical Sciences, Gurugram University, Gurugram, 122018, Haryana, India
| | - Kiran Yadav
- Chandigarh College of Pharmacy, Chandigarh Group of Colleges, Mohali, 140307, Punjab, India
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17
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Soh CL, Pandiaraja M, Powar MP. 3D-Printing Applications in Ostomy Device Creation and Complex Intestinal Fistula Management: A Scoping Review. Surg J (N Y) 2023; 9:e97-e106. [PMID: 37876379 PMCID: PMC10522416 DOI: 10.1055/s-0043-1775748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 05/26/2023] [Indexed: 10/26/2023] Open
Abstract
Background This scoping review aims to provide a summary of the use of three-dimensional (3D) printing in colorectal surgery for the management of complex intestinal fistula and ostomy creation. Methods A systematic database search was conducted of original articles that explored the use of 3D printing in colorectal surgery in EMBASE, MEDLINE, Cochrane database, and Google Scholar, from inception to March 2022. Original articles and case reports that discussed 3D printing in colorectal surgery relating to complex intestinal fistulae and ostomies were identified and analyzed. Results There were 8 articles identified which discussed the use of 3D printing in colorectal surgery, of which 2 discussed ostomy creation, 4 discussed complex fistulae management, and 2 discussed patient models. Conclusion 3D printing has a promising role in terms of management of these conditions and can improve outcomes in terms of recovery, fluid loss, and function with no increase in complications. The use of 3D printing is still in its early stages of development in colorectal surgery. Further research in the form of randomized control trials to improve methodological robustness will reveal its true potential.
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Affiliation(s)
- Chien Lin Soh
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | | | - Michael P. Powar
- Cambridge Colorectal Unit, Cambridge University Hospitals NHS Trust, Cambridge, United Kingdom
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18
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Patel P, Dhal K, Gupta R, Tappa K, Rybicki FJ, Ravi P. Medical 3D Printing Using Desktop Inverted Vat Photopolymerization: Background, Clinical Applications, and Challenges. Bioengineering (Basel) 2023; 10:782. [PMID: 37508810 PMCID: PMC10376892 DOI: 10.3390/bioengineering10070782] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/25/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Medical 3D printing is a complex, highly interdisciplinary, and revolutionary technology that is positively transforming the care of patients. The technology is being increasingly adopted at the Point of Care (PoC) as a consequence of the strong value offered to medical practitioners. One of the key technologies within the medical 3D printing portfolio enabling this transition is desktop inverted Vat Photopolymerization (VP) owing to its accessibility, high quality, and versatility of materials. Several reports in the peer-reviewed literature have detailed the medical impact of 3D printing technologies as a whole. This review focuses on the multitude of clinical applications of desktop inverted VP 3D printing which have grown substantially in the last decade. The principles, advantages, and challenges of this technology are reviewed from a medical standpoint. This review serves as a primer for the continually growing exciting applications of desktop-inverted VP 3D printing in healthcare.
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Affiliation(s)
- Parimal Patel
- Department of Mechanical & Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Kashish Dhal
- Department of Mechanical & Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019, USA
| | - Rajul Gupta
- Department of Orthopedic Surgery, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Karthik Tappa
- Department of Breast Imaging, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Frank J Rybicki
- Department of Radiology, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Prashanth Ravi
- Department of Radiology, University of Cincinnati, Cincinnati, OH 45219, USA
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19
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Paxton NC. Navigating the intersection of 3D printing, software regulation and quality control for point-of-care manufacturing of personalized anatomical models. 3D Print Med 2023; 9:9. [PMID: 37024730 PMCID: PMC10080800 DOI: 10.1186/s41205-023-00175-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 03/24/2023] [Indexed: 04/08/2023] Open
Abstract
3D printing technology has become increasingly popular in healthcare settings, with applications of 3D printed anatomical models ranging from diagnostics and surgical planning to patient education. However, as the use of 3D printed anatomical models becomes more widespread, there is a growing need for regulation and quality control to ensure their accuracy and safety. This literature review examines the current state of 3D printing in hospitals and FDA regulation process for software intended for use in producing 3D printed models and provides for the first time a comprehensive list of approved software platforms alongside the 3D printers that have been validated with each for producing 3D printed anatomical models. The process for verification and validation of these 3D printed products, as well as the potential for inaccuracy in these models, is discussed, including methods for testing accuracy, limits, and standards for accuracy testing. This article emphasizes the importance of regulation and quality control in the use of 3D printing technology in healthcare, the need for clear guidelines and standards for both the software and the printed products to ensure the safety and accuracy of 3D printed anatomical models, and the opportunity to expand the library of regulated 3D printers.
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Affiliation(s)
- Naomi C Paxton
- Phil & Penny Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, OR, USA.
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van der Borg G, Warner H, Ioannidis M, van den Bogaart G, Roos WH. PLA 3D Printing as a Straightforward and Versatile Fabrication Method for PDMS Molds. Polymers (Basel) 2023; 15:1498. [PMID: 36987277 PMCID: PMC10059908 DOI: 10.3390/polym15061498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/12/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
3D printing is gaining traction in research and development as a way to quickly, cheaply, and easily manufacture polydimethylsiloxane (PDMS) molds. The most commonly used method is resin printing, which is relatively expensive and requires specialized printers. This study shows that polylactic acid (PLA) filament printing is a cheaper, more readily available alternative to resin printing, that does not inhibit the curing of PDMS. As a proof of concept, a PLA mold for PDMS-based wells was designed, and 3D printed. We introduce an effective method to smooth the printed PLA mold, based on chloroform vapor treatment. After this chemical post-processing step, the smoothened mold was used to cast a ring of PDMS prepolymer. The PDMS ring was attached to a glass coverslip after oxygen plasma treatment. The PDMS-glass well showed no leakage and was well suited to its intended use. When used for cell culturing, monocyte-derived dendritic cells (moDCs) showed no morphological anomalies, as tested by confocal microscopy, nor did they show an increase in cytokines, as tested using ELISA. This underlines the versatility and strength of PLA filament printing and exemplifies how it can be valuable to a researcher's toolset.
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Affiliation(s)
- Guus van der Borg
- Molecular Biophysics, Zernike Institute for Advanced Materials, Rijksuniversiteit Groningen, 9747 AG Groningen, The Netherlands
| | - Harry Warner
- Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, Rijksuniversiteit Groningen, 9747 AG Groningen, The Netherlands
| | - Melina Ioannidis
- Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, Rijksuniversiteit Groningen, 9747 AG Groningen, The Netherlands
| | - Geert van den Bogaart
- Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, Rijksuniversiteit Groningen, 9747 AG Groningen, The Netherlands
| | - Wouter H. Roos
- Molecular Biophysics, Zernike Institute for Advanced Materials, Rijksuniversiteit Groningen, 9747 AG Groningen, The Netherlands
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21
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Tuladhar S, Clark S, Habib A. Tuning Shear Thinning Factors of 3D Bio-Printable Hydrogels Using Short Fiber. MATERIALS (BASEL, SWITZERLAND) 2023; 16:572. [PMID: 36676319 PMCID: PMC9861940 DOI: 10.3390/ma16020572] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/21/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Among various available 3D bioprinting techniques, extrusion-based three-dimensional (3D) bioprinting allows the deposition of cell-laden bioink, ensuring predefined scaffold architecture that may offer living tissue regeneration. With a combination of unique characteristics such as biocompatibility, less cell toxicity, and high water content, natural hydrogels are a great candidate for bioink formulation for the extrusion-based 3D bioprinting process. However, due to its low mechanical integrity, hydrogel faces a common challenge in maintaining structural integrity. To tackle this challenge, the rheological properties, specifically the shear thinning behavior (reduction of viscosity with increasing the applied load/shear rate on hydrogels) of a set of hybrid hydrogels composed of cellulose-derived nanofiber (TEMPO-mediated nano-fibrillated cellulose, TO-NFC), carboxymethyl cellulose (CMC), and commonly used alginate, were explored. A total of 46 compositions were prepared using higher (0.5% and 1.0%) and lower percentages (0.005% and 0.01%) of TO-NFC, 1-4% of CMC, and 1-4% of alginate to analyze the shear thinning factors such as the values of n and K, which were determined for each composition from the flow diagram and co-related with the 3D printability. The ability to tune shear thinning factors with various ratios of a nanofiber can help achieve a 3D bio-printed scaffold with defined scaffold architecture.
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Additive manufacturing technologies with emphasis on stereolithography 3D printing in pharmaceutical and medical applications: A review. Int J Pharm X 2023; 5:100159. [PMID: 36632068 PMCID: PMC9827389 DOI: 10.1016/j.ijpx.2023.100159] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 12/31/2022] [Accepted: 01/02/2023] [Indexed: 01/04/2023] Open
Abstract
Three-dimensional (3D) printing or Additive Manufacturing (AM) technology is an innovative tool with great potential and diverse applications in various fields. As 3D printing has been burgeoning in recent times, a tremendous transformation can be envisaged in medical care, especially the manufacturing procedures leading to personalized medicine. Stereolithography (SLA), a vat-photopolymerization technique, that uses a laser beam, is known for its ability to fabricate complex 3D structures ranging from micron-size needles to life-size organs, because of its high resolution, precision, accuracy, and speed. This review presents a glimpse of varied 3D printing techniques, mainly expounding SLA in terms of the materials used, the orientation of printing, and the working mechanisms. The previous works that focused on developing pharmaceutical dosage forms, drug-eluting devices, and tissue scaffolds are presented in this paper, followed by the challenges associated with SLA from an industrial and regulatory perspective. Due to its excellent advantages, this technology could transform the conventional "one dose fits all" concept to bring digitalized patient-centric medication into reality.
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AlRawi A, Basha T, Elmeligy AO, Mousa NA, Mohammed G. The Role of Three-dimensional Printed Models in Women's Health. WOMEN'S HEALTH (LONDON, ENGLAND) 2023; 19:17455057231199040. [PMID: 37688305 PMCID: PMC10493061 DOI: 10.1177/17455057231199040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/26/2023] [Accepted: 08/11/2023] [Indexed: 09/10/2023]
Abstract
Three-dimensional printing is an innovative technology that has gained prominence in recent years due to its attractive features such as affordability, efficiency, and quick production. The technology is used to produce a three-dimensional model by depositing materials in layers using specific printers. In the medical field, it has been increasingly used in various specialties, including neurosurgery, cardiology, and orthopedics, most commonly for the pre-planning of complex surgeries. In addition, it has been applied in therapeutic treatments, patient education, and training wof medical professionals. In the field of obstetrics and gynecology, there is a limited number of studies in which three-dimensional printed models were applied. In this review, we aim to provide an overview of three-dimensional printing applications in the medical field, highlighting the few reported applications in obstetrics and gynecology. We also review all relevant studies and discuss the current challenges and limitations of adopting the technology in routine clinical practice. The technology has the potential to expand for wider applications related to women's health, including patient counseling, surgical training, and medical education.
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Affiliation(s)
- Afnan AlRawi
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Tasneem Basha
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Ahmed O Elmeligy
- Department of Electrical and Computer Engineering, Faculty of Engineering, McGill University, Montreal, QC, Canada
| | - Noha A Mousa
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Ghada Mohammed
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
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McIvor MJ, Ó Maolmhuaidh F, Meenagh A, Hussain S, Bhattacharya G, Fishlock S, Ward J, McFerran A, Acheson JG, Cahill PA, Forster R, McEneaney DJ, Boyd AR, Meenan BJ. 3D Fabrication and Characterisation of Electrically Receptive PCL-Graphene Scaffolds for Bioengineered In Vitro Tissue Models. MATERIALS (BASEL, SWITZERLAND) 2022; 15:9030. [PMID: 36556835 PMCID: PMC9783119 DOI: 10.3390/ma15249030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/11/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Polycaprolactone (PCL) is a well-established biomaterial, offering extensive mechanical attributes along with low cost, biocompatibility, and biodegradability; however, it lacks hydrophilicity, bioactivity, and electrical conductivity. Advances in 3D fabrication technologies allow for these sought-after attributes to be incorporated into the scaffolds during fabrication. In this study, solvent-free Fused Deposition Modelling was employed to fabricate 3D scaffolds from PCL with increasing amounts of graphene (G), in the concentrations of 0.75, 1.5, 3, and 6% (w/w). The PCL+G scaffolds created were characterised physico-chemically, electrically, and biologically. Raman spectroscopy demonstrated that the scaffold outer surface contained both PCL and G, with the G component relatively uniformly distributed. Water contact angle measurement demonstrated that as the amount of G in the scaffold increases (0.75-6% w/w), hydrophobicity decreases; mean contact angle for pure PCL was recorded as 107.22 ± 9.39°, and that with 6% G (PCL+6G) as 77.56 ± 6.75°. Electrochemical Impedance Spectroscopy demonstrated a marked increase in electroactivity potential with increasing G concentration. Cell viability results indicated that even the smallest addition of G (0.75%) resulted in a significant improvement in electroactivity potential and bioactivity compared with that for pure PCL, with 1.5 and 3% exhibiting the highest statistically significant increases in cell proliferation.
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Affiliation(s)
- Mary Josephine McIvor
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Fionn Ó Maolmhuaidh
- The National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Aidan Meenagh
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Shahzad Hussain
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Gourav Bhattacharya
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Sam Fishlock
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Joanna Ward
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Aoife McFerran
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Jonathan G. Acheson
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Paul A. Cahill
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Robert Forster
- The National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - David J. McEneaney
- Cardiovascular Research Unit, Craigavon Area Hospital, 68 Lurgan Road, Portadown, Co., Armagh BT63 5QQ, UK
| | - Adrian R. Boyd
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
| | - Brian J. Meenan
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast BT15 1AP, UK
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Su C, Chen Y, Tian S, Lu C, Lv Q. Natural Materials for 3D Printing and Their Applications. Gels 2022; 8:748. [PMID: 36421570 PMCID: PMC9689506 DOI: 10.3390/gels8110748] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/11/2022] [Accepted: 11/13/2022] [Indexed: 08/15/2023] Open
Abstract
In recent years, 3D printing has gradually become a well-known new topic and a research hotspot. At the same time, the advent of 3D printing is inseparable from the preparation of bio-ink. Natural materials have the advantages of low toxicity or even non-toxicity, there being abundant raw materials, easy processing and modification, excellent mechanical properties, good biocompatibility, and high cell activity, making them very suitable for the preparation of bio-ink. With the help of 3D printing technology, the prepared materials and scaffolds can be widely used in tissue engineering and other fields. Firstly, we introduce the natural materials and their properties for 3D printing and summarize the physical and chemical properties of these natural materials and their applications in tissue engineering after modification. Secondly, we discuss the modification methods used for 3D printing materials, including physical, chemical, and protein self-assembly methods. We also discuss the method of 3D printing. Then, we summarize the application of natural materials for 3D printing in tissue engineering, skin tissue, cartilage tissue, bone tissue, and vascular tissue. Finally, we also express some views on the research and application of these natural materials.
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Affiliation(s)
- Chunyu Su
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Yutong Chen
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Shujing Tian
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Chunxiu Lu
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Qizhuang Lv
- College of Biology & Pharmacy, Yulin Normal University, Yulin 537000, China
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Yulin 537000, China
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Karaca TH, Çiçek B, Aydoğmuş T, Sun Y. The effect of graphene-nanoplatelet and nano-teflon on mechanical properties of UV photo-resin 3D printer products. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2022.2061862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
| | - Bünyamin Çiçek
- Machine and Metal Technologies, Hitit University, Corum, Turkey
| | - Tuna Aydoğmuş
- Electric and Energy, Hitit University, Corum, Turkey
| | - Yavuz Sun
- Metallurgy and Material Engineering, Karabuk University, Karabuk, Turkey
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Adamov I, Stanojević G, Medarević D, Ivković B, Kočović D, Mirković D, Ibrić S. Formulation and characterization of immediate-release oral dosage forms with zolpidem tartrate fabricated by digital light processing (DLP) 3D printing technique. Int J Pharm 2022; 624:122046. [PMID: 35908634 DOI: 10.1016/j.ijpharm.2022.122046] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/17/2022] [Accepted: 07/20/2022] [Indexed: 10/16/2022]
Abstract
The introduction of three-dimensional (3D) printing in the pharmaceutical field has made great strides towards innovations in the way drugs are designed and manufactured. In this study, digital light processing (DLP) technique was used to fabricate oral dosage forms of different shapes with zolpidem tartrate (ZT), incorporated within its therapeutic range. Formulation factors, such as poly(ethylene glycol) diacrylate (PEGDA) and poly(ethylene glycol) 400 (PEG 400) ratio, as well as water content, were varied in combination with the surface area/volume (SA/V) ratio to achieve immediate drug release. Hypromellose (HPMC) was used as a stabilizing agent of photoreactive suspensions in an attempt to prevent drug sedimentation and subsequent variations in drug content uniformity. Oral dosage forms with doses in the range from 0.15 mg to 6.37 mg, showing very rapid and rapid drug dissolution, were successfully fabricated, confirming the potential of this technique in drug manufacturing with the ability to provide flexible dose adjustments and desirable release profiles by varying formulation factors and geometry of 3D models. DSC (differential scanning calorimetry), XRPD (X-ray powder diffraction) and scanning electron microscopy (SEM) showed that ZT remained in a crystalline form within printed dosage forms and no interactions were found between ZT and polymers.
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Affiliation(s)
- Ivana Adamov
- Department of Pharmaceutical Technology and Cosmetology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Gordana Stanojević
- Institute for Medicines and Medical Devices of Montenegro, Ivana Crnojevića 64a, 81000 Podgorica, Montenegro
| | - Djordje Medarević
- Department of Pharmaceutical Technology and Cosmetology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Branka Ivković
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - David Kočović
- Institute for Medicines and Medical Devices of Montenegro, Ivana Crnojevića 64a, 81000 Podgorica, Montenegro
| | - Dušica Mirković
- Sector for Pharmacy, Military Medical Academy, Crnotravska 17, 11040 Belgrade, Serbia
| | - Svetlana Ibrić
- Department of Pharmaceutical Technology and Cosmetology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia.
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Shine KM, Schlegel L, Ho M, Boyd K, Pugliese R. From the ground up: understanding the developing infrastructure and resources of 3D printing facilities in hospital-based settings. 3D Print Med 2022; 8:21. [PMID: 35821456 PMCID: PMC9275538 DOI: 10.1186/s41205-022-00147-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 06/09/2022] [Indexed: 12/02/2022] Open
Abstract
Background 3D printing is a popular technology in many industries secondary to its ability to rapidly produce inexpensive, high fidelity models/products, mainly through layer-by-layer fusion of various substrate materials. In healthcare, 3D printing has garnered interest for its applications in surgery, simulation, education, and medical device development, and 3D printing facilities are now being integrated into hospital-based settings. Yet, little is known regarding the leadership, resources, outputs, and role of these new onsite entities. Methods The purpose of this research was to survey features of North American hospital-based 3D printing facilities to understand their design and utility in anticipation of future expansion. Hospital-based 3D printing labs were recruited through online special interest groups to participate via survey response. Anonymous, voluntary data were collected from 21 facilities over 9 weeks and reported/analyzed in aggregate. Results Of the respondents, > 50% were founded in the past 5 years and 80% in the past decade, indicating recent and rapid growth of such facilities. Labs were most commonly found within large, university-affiliated hospitals/health systems with administration frequently, but not exclusively, through radiology departments, which was shown to enhance collaboration. All groups reported collaborating with other medical specialties/departments and image segmentation as part of the workflow, showing widespread interest in high fidelity, personalized medicine applications. Lab leadership was most often multidisciplinary, with physicians present on nearly all leadership teams. Budgets, personnel, and outputs varied among groups, however, all groups reported engagement in multiple 3D printing applications. Conclusion This preliminary study provides a foundation for understanding the unique nature of hospital-based 3D printing labs. While there is much to learn about such in-house facilities, the data obtained reveal important baseline characteristics. Further research is indicated to validate these early findings and create a detailed picture of the developing infrastructure of 3D printing in healthcare settings. Supplementary Information The online version contains supplementary material available at 10.1186/s41205-022-00147-7.
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Affiliation(s)
- Kristy M Shine
- Health Design Lab, Thomas Jefferson University, Philadelphia, USA. .,Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, USA. .,Department of Emergency Medicine, Thomas Jefferson University, Philadelphia, USA.
| | - Lauren Schlegel
- Health Design Lab, Thomas Jefferson University, Philadelphia, USA.,Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, USA
| | - Michelle Ho
- Health Design Lab, Thomas Jefferson University, Philadelphia, USA.,Department of Medicine, Pennsylvania Hospital, University of Pennsylvania, Philadelphia, USA
| | - Kaitlyn Boyd
- Health Design Lab, Thomas Jefferson University, Philadelphia, USA.,College of Engineering, Drexel University, Philadelphia, USA
| | - Robert Pugliese
- Health Design Lab, Thomas Jefferson University, Philadelphia, USA.,Innovation Pillar, Thomas Jefferson University, Philadelphia, USA
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A 3D printed model of the female pelvis for practical education of gynecological pelvic examination. 3D Print Med 2022; 8:13. [PMID: 35511353 PMCID: PMC9069962 DOI: 10.1186/s41205-022-00139-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 03/29/2022] [Indexed: 11/17/2022] Open
Abstract
Background Pelvic palpation is a core component of every Gynecologic examination. It requires vigorous training, which is difficult due to its intimate nature, leading to a need of simulation. Up until now, there are mainly models available for mere palpation which do not offer adequate visualization of the concerning anatomical structures. In this study we present a 3D printed model of the female pelvis. It can improve both the practical teaching of gynecological pelvic examination for health care professionals and the spatial understanding of the relevant anatomy. Methods We developed a virtual, simplified model showing selected parts of the female pelvis. 3D printing was used to create a physical model. Results The life-size 3D printed model has the ability of being physically assembled step by step by its users. Consequently, it improves teaching especially when combining it with commercial phantoms, which are built solely for palpation training. This is achieved by correlating haptic and visual sensations with the resulting feedback received. Conclusion The presented 3D printed model of the female pelvis can be of aid for visualizing and teaching pelvic anatomy and examination to medical staff. 3D printing provides the possibility of creating, multiplying, adapting and sharing such data worldwide with little investment of resources. Thus, an important contribution to the international medical community can be made for training this challenging examination.
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Zoabi A, Redenski I, Oren D, Kasem A, Zigron A, Daoud S, Moskovich L, Kablan F, Srouji S. 3D Printing and Virtual Surgical Planning in Oral and Maxillofacial Surgery. J Clin Med 2022; 11:jcm11092385. [PMID: 35566511 PMCID: PMC9104292 DOI: 10.3390/jcm11092385] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 02/01/2023] Open
Abstract
Compared to traditional manufacturing methods, additive manufacturing and 3D printing stand out in their ability to rapidly fabricate complex structures and precise geometries. The growing need for products with different designs, purposes and materials led to the development of 3D printing, serving as a driving force for the 4th industrial revolution and digitization of manufacturing. 3D printing has had a global impact on healthcare, with patient-customized implants now replacing generic implantable medical devices. This revolution has had a particularly significant impact on oral and maxillofacial surgery, where surgeons rely on precision medicine in everyday practice. Trauma, orthognathic surgery and total joint replacement therapy represent several examples of treatments improved by 3D technologies. The widespread and rapid implementation of 3D technologies in clinical settings has led to the development of point-of-care treatment facilities with in-house infrastructure, enabling surgical teams to participate in the 3D design and manufacturing of devices. 3D technologies have had a tremendous impact on clinical outcomes and on the way clinicians approach treatment planning. The current review offers our perspective on the implementation of 3D-based technologies in the field of oral and maxillofacial surgery, while indicating major clinical applications. Moreover, the current report outlines the 3D printing point-of-care concept in the field of oral and maxillofacial surgery.
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Affiliation(s)
- Adeeb Zoabi
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Idan Redenski
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Daniel Oren
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Adi Kasem
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Asaf Zigron
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Shadi Daoud
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Liad Moskovich
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Fares Kablan
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
| | - Samer Srouji
- Department of Oral and Maxillofacial Surgery, Galilee College of Dental Sciences, Galilee Medical Center, Nahariya 2210001, Israel; (A.Z.); (I.R.); (D.O.); (A.K.); (A.Z.); (S.D.); (L.M.); (F.K.)
- The Azrieli Faculty of Medicine, Bar-Ilan University, Safed 1311502, Israel
- Correspondence:
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Debbi EM, Puri S, Athey AG, Chalmers BP. Liquid Phase 3D Printing: How This New Technology Can Help Bring 3D Printing to the Operating Room. Curr Rev Musculoskelet Med 2022; 15:213-218. [PMID: 35451810 DOI: 10.1007/s12178-022-09758-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/07/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE OF REVIEW The purpose of this review is to discuss the state of technology in liquid phase three-dimensional (3D) metal printing, how this has affected the field of orthopedic surgery, and changes that we can expect in the future with the rise of this printing technology. We will also discuss how liquid phase metal printing can possibly bring three-dimensional printing to the operating room. RECENT FINDINGS The use of liquid phase 3D metal printing may become commonplace for manufacturing orthopedic implants and devices. Traditional metal printing involved powder-based metals and high-energy beam technologies that are expensive, time-consuming, and potentially wasteful. This unfortunately leaves them out of reach for most end consumers such as orthopedic surgeons. Liquid phase metal printing is less expensive and faster. However, there is still major work required to bring this technology to the operating room and benefit patients. While major strides have been made in the field of liquid phase metal three-dimensional printing, there are still significant developments in the pipeline. These could lead to future production of personalized orthopedic implants and devices with optimal material properties for patients.
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Affiliation(s)
- Eytan M Debbi
- Department of Orthopaedic Surgery, Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Simarjeet Puri
- Department of Orthopaedic Surgery, Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | | | - Brian P Chalmers
- Department of Orthopaedic Surgery, Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
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32
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Medical 3D Printing with a focus on Point-of-Care in Cranio- and Maxillofacial Surgery. A systematic review of literature. ANNALS OF 3D PRINTED MEDICINE 2022. [DOI: 10.1016/j.stlm.2022.100059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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33
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Bastawrous S, Wu L, Liacouras PC, Levin DB, Ahmed MT, Strzelecki B, Amendola MF, Lee JT, Coburn J, Ripley B. Establishing 3D Printing at the Point of Care: Basic Principles and Tools for Success. Radiographics 2022; 42:451-468. [PMID: 35119967 DOI: 10.1148/rg.210113] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
As the medical applications of three-dimensional (3D) printing increase, so does the number of health care organizations in which adoption or expansion of 3D printing facilities is under consideration. With recent advancements in 3D printing technology, medical practitioners have embraced this powerful tool to help them to deliver high-quality patient care, with a focus on sustainability. The use of 3D printing in the hospital or clinic at the point of care (POC) has profound potential, but its adoption is not without unanticipated challenges and considerations. The authors provide the basic principles and considerations for building the infrastructure to support 3D printing inside the hospital. This process includes building a business case; determining the requirements for facilities, space, and staff; designing a digital workflow; and considering how electronic health records may have a role in the future. The authors also discuss the supported applications and benefits of medical 3D printing and briefly highlight quality and regulatory considerations. The information presented is meant to be a practical guide to assist radiology departments in exploring the possibilities of POC 3D printing and expanding it from a niche application to a fixture of clinical care. An invited commentary by Ballard is available online. ©RSNA, 2022.
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Affiliation(s)
- Sarah Bastawrous
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - Lei Wu
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - Peter C Liacouras
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - Dmitry B Levin
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - Mohamed Tarek Ahmed
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - Brian Strzelecki
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - Michael F Amendola
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - James T Lee
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - James Coburn
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
| | - Beth Ripley
- Department of Radiology (S.B., L.W., B.R.) and Department of Medicine, Division of Cardiology (D.B.L.), University of Washington School of Medicine, Seattle, Wash; Departments of Radiology (S.B., L.W., B.R.) and Research and Development (B.S.), VA Puget Sound Health Care System, Mailbox S-114, Radiology, 1660 S Columbian Way, Seattle, WA 98108-1597; 3D Medical Applications Center, Walter Reed National Military Medical Center, Bethesda, Md (P.C.L.); Department of Radiology, University of Kentucky College of Medicine, Lexington, Ky (M.T.A., J.T.L.); Department of Surgery, Division of Vascular Surgery, Surgical Services (112), Virginia Commonwealth University School of Medicine, Richmond, Va (M.F.A.); and Department of Bioengineering, University of Maryland, College Park, Md (J.C.)
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Adamov I, Medarević Đ, Ivković B, Ivković A, Ibrić S. Digital light processing (DLP) 3D printing technique applied in the fabrication of two-layered tablets: The concept of a combined polypill. ARHIV ZA FARMACIJU 2022. [DOI: 10.5937/arhfarm72-40365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Ever since 3D printing was introduced to the field of pharmacy, it has caused a paradigm shift from the manufacturing of large-scale to small batches of medicines tailored accordingly to the specific needs of patients. This study aimed to formulate and fabricate two-layered 3D tablets using the digital light processing (DLP) technique. Hydrochlorothiazide (HHT,5%,w/w) and warfarin sodium (WS,5%,w/w) were selected as model drugs. The printing process was initiated with 0.1% of photoinitiator, at a constant ratio of poly(ethylene glycol)diacrylate and poly(ethylene glycol) 400, 1:1, with the addition of water (10%,w/w). Single-layered tablets of 8.00 mm diameter and 1.50 mm thickness, containing HHT and WS respectively, were successfully printed, as well as combined two-layered 3D tablets, with each of the active substances in separate layers. Dissolution tests of single-layered tablets showed immediate, but incomplete release of WS (81.47±1.47%, after 45min), and prolonged and complete release of HHT (98.17±3.11%, after 8h), while significantly slower and incomplete release of both drugs from the combined two-layered 3D tablets was observed. The absence of drug-polymer interaction and presence of a layered cross-sectional tablet structure were confirmed. DLP technique enables simple and rapid fabrication of combined two-layered 3D tablets, while further optimization of formulation factors is necessary to achieve complete drug release.
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Li J, Fu S, Lu KW, Christie O, Gozelski MT, Cottone MC, Cottone P, Kianian S, Feng KC, Simon M, Rafailovich M, Dagum AB, Singh G. Engineering functional skin constructs: A quantitative comparison of three-dimensional bioprinting with traditional methods. Exp Dermatol 2021; 31:516-527. [PMID: 34727395 DOI: 10.1111/exd.14488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/07/2021] [Accepted: 10/15/2021] [Indexed: 11/27/2022]
Abstract
Tissue engineering has been successful in reproducing human skin equivalents while incorporating new approaches such as three-dimensional (3D) bioprinting. The latter method offers a plethora of advantages including increased production scale, ability to incorporate multiple cell types and printing on demand. However, the quality of printed skin equivalents compared to those developed manually has never been assessed. To leverage the benefits of this method, it is imperative that 3D-printed skin should be structurally and functionally similar to real human skin. Here, we developed four bilayered human skin epidermal-dermal equivalents: non-printed dermis and epidermis (NN), printed dermis and epidermis (PP), printed epidermis and non-printed dermis (PN), and non-printed epidermis and printed dermis (NP). The effects of printing induced shear stress [0.025 kPa (epidermis); 0.049 kPa (dermis)] were characterized both at the cellular and at the tissue level. At cellular level, no statistically significant differences in keratinocyte colony-forming efficiency (CFE) (p = 0.1641) were observed. In the case of fibroblasts, no significant differences in the cell alignment index (p < 0.1717) and their ability to contract collagen gel (p = 0.851) were detected. At the tissue levels, all the four skin equivalents were characterized using histological and immunohistochemical analysis with no significant differences found in either epidermal basal cell count, thickness of viable epidermis, and relative intensity of filaggrin and claudin-1. Our results demonstrated that 3D printing can achieve the same high-quality skin constructs as have been developed traditionally, thus opening new avenues for numerous high-throughput industrial and clinical applications.
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Affiliation(s)
- Juyi Li
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Shi Fu
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Kimberly W Lu
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Olias Christie
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Michael T Gozelski
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Michael C Cottone
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Philip Cottone
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Sara Kianian
- Department of Surgery, Stony Brook University, Stony Brook, New York, USA
| | - Kuan-Che Feng
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Marcia Simon
- Department of Oral Biology and Pathology, Stony Brook University, Stony Brook, New York, USA
| | - Miriam Rafailovich
- Department of Materials Science and Chemical Engineering Stony Brook, Stony Brook University, New York, USA
| | - Alexander B Dagum
- Department of Surgery, Stony Brook University, Stony Brook, New York, USA
| | - Gurtej Singh
- Department of Surgery, Stony Brook University, Stony Brook, New York, USA
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Toro M, Cardona A, Restrepo D, Buitrago L. Does vaporized hydrogen peroxide sterilization affect the geometrical properties of anatomic models and guides 3D printed from computed tomography images? 3D Print Med 2021; 7:29. [PMID: 34519898 PMCID: PMC8439001 DOI: 10.1186/s41205-021-00120-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 08/19/2021] [Indexed: 11/18/2022] Open
Abstract
Background Material extrusion is used to 3D print anatomic models and guides. Sterilization is required if a 3D printed part touches the patient during an intervention. Vaporized Hydrogen Peroxide (VHP) is one method of sterilization. There are four factors to consider when sterilizing an anatomic model or guide: sterility, biocompatibility, mechanical properties, and geometric fidelity. This project focuses on geometric fidelity for material extrusion of one polymer acrylonitrile butadiene styrene (ABS) using VHP. Methods De-identified computed tomography (CT) image data from 16 patients was segmented using Mimics Innovation Suite (Materialise NV, Leuven, Belgium). Eight patients had maxillary and mandibular defects depicted with the anatomic models, and eight had mandibular defects for the anatomic guides. Anatomic models and guides designed from the surfaces of CT scan reconstruction and segementation were 3D printed in medical-grade acrylonitrile butadiene styrene (ABS) material extrusion. The 16 parts underwent low-temperature sterilization with VHP. The dimensional error was estimated after sterilization by comparing scanned images of the 3D printed parts. Results The average of the estimated mean differences between the printed pieces before and after sterilization were − 0,011 ± 0,252 mm (95%CI − 0,011; − 0,010) for the models and 0,003 ± 0,057 mm (95%CI 0,002; 0,003) for the guides. Regarding the dimensional error of the sterilized parts compared to the original design, the estimated mean differences were − 0,082 ± 0,626 mm (95%CI − 0,083; − 0,081) for the models and 0,126 ± 0,205 mm (95%CI 0,126, 0,127) for the guides. Conclusion This project tested and verified dimensional stability, one of the four prerequisites for introducing vaporized hydrogen peroxide into 3D printing of anatomic models and guides; the 3D printed parts maintained dimensional stability after sterilization.
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Affiliation(s)
- Mauricio Toro
- TECHFIT Digital Surgery, Industrias Médicas Sampedro, Carrera 47 N° 100 Sur 40 Centro Industrial Portal del Sur, Bodega 14, variante a Caldas, La Estrella (Medellin), Colombia
| | - Aura Cardona
- R&D Department, TECHFIT Digital Surgery, Industrias Médicas Sampedro, La Estrella, Colombia
| | - Daniel Restrepo
- R&D Department, TECHFIT Digital Surgery, Industrias Médicas Sampedro, La Estrella, Colombia
| | - Laura Buitrago
- TECHFIT Digital Surgery, Industrias Médicas Sampedro, Carrera 47 N° 100 Sur 40 Centro Industrial Portal del Sur, Bodega 14, variante a Caldas, La Estrella (Medellin), Colombia.
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Hopfner C, Jakob A, Tengler A, Grab M, Thierfelder N, Brunner B, Thierij A, Haas NA. Design and 3D printing of variant pediatric heart models for training based on a single patient scan. 3D Print Med 2021; 7:25. [PMID: 34463879 PMCID: PMC8406574 DOI: 10.1186/s41205-021-00116-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 08/15/2021] [Indexed: 11/24/2022] Open
Abstract
Background 3D printed models of pediatric hearts with congenital heart disease have been proven helpful in simulation training of diagnostic and interventional catheterization. However, anatomically accurate 3D printed models are traditionally based on real scans of clinical patients requiring specific imaging techniques, i.e., CT or MRI. In small children both imaging technologies are rare as minimization of radiation and sedation is key. 3D sonography does not (yet) allow adequate imaging of the entire heart for 3D printing. Therefore, an alternative solution to create variant 3D printed heart models for teaching and hands-on training has been established. Methods In this study different methods utilizing image processing and computer aided design software have been established to overcome this shortage and to allow unlimited variations of 3D heart models based on single patient scans. Patient-specific models based on a CT or MRI image stack were digitally modified to alter the original shape and structure of the heart. Thereby, 3D hearts showing various pathologies were created. Training models were adapted to training level and aims of hands-on workshops, particularly for interventional cardiology. Results By changing the shape and structure of the original anatomy, various training models were created of which four examples are presented in this paper: 1. Design of perimembranous and muscular ventricular septal defect on a heart model with patent ductus arteriosus, 2. Series of heart models with atrial septal defect showing the long-term hemodynamic effect of the congenital heart defect on the right atrial and ventricular wall, 3. Implementation of simplified heart valves and addition of the myocardium to a right heart model with pulmonary valve stenosis, 4. Integration of a constructed 3D model of the aortic valve into a pulsatile left heart model with coarctation of the aorta. All presented models have been successfully utilized and evaluated in teaching or hands-on training courses. Conclusions It has been demonstrated that non-patient-specific anatomical variants can be created by modifying existing patient-specific 3D heart models. This way, a range of pathologies can be modeled based on a single CT or MRI dataset. Benefits of designed 3D models for education and training purposes have been successfully applied in pediatric cardiology but can potentially be transferred to simulation training in other medical fields as well.
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Affiliation(s)
- Carina Hopfner
- Department of Pediatric Cardiology and Pediatric Intensive Care, LMU Klinikum, Campus Großhadern, Marchioninistr. 15, 81377, Munich, Germany.
| | - Andre Jakob
- Department of Pediatric Cardiology and Pediatric Intensive Care, LMU Klinikum, Campus Großhadern, Marchioninistr. 15, 81377, Munich, Germany
| | - Anja Tengler
- Department of Pediatric Cardiology and Pediatric Intensive Care, LMU Klinikum, Campus Großhadern, Marchioninistr. 15, 81377, Munich, Germany
| | - Maximilian Grab
- Department of Cardiac Surgery, LMU Klinikum, Campus Großhadern, Marchioninistr. 15, 81377, Munich, Germany
| | - Nikolaus Thierfelder
- Department of Cardiac Surgery, LMU Klinikum, Campus Großhadern, Marchioninistr. 15, 81377, Munich, Germany
| | - Barbara Brunner
- Department of Pediatric Cardiology and Pediatric Intensive Care, LMU Klinikum, Campus Großhadern, Marchioninistr. 15, 81377, Munich, Germany
| | - Alisa Thierij
- Department of Pediatric Cardiology and Pediatric Intensive Care, LMU Klinikum, Campus Großhadern, Marchioninistr. 15, 81377, Munich, Germany
| | - Nikolaus A Haas
- Department of Pediatric Cardiology and Pediatric Intensive Care, LMU Klinikum, Campus Großhadern, Marchioninistr. 15, 81377, Munich, Germany
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Adach M, Sokołowski P, Piwowarczyk T, Nowak K. Study on Geometry, Dimensional Accuracy and Structure of Parts Produced by Multi Jet Fusion. MATERIALS 2021; 14:ma14164510. [PMID: 34443032 PMCID: PMC8398662 DOI: 10.3390/ma14164510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/28/2021] [Accepted: 08/05/2021] [Indexed: 12/04/2022]
Abstract
Multi Jet Fusion (MJF) is one of the newest additive manufacturing technologies for polymer powders, introduced in recent years. This fully industrial technology is gaining big interest as it allows fast, layer-by-layer, printing process, short production cycle, and very high printing resolution. In this paper, twelve thin-walled, spherical PA12 prints were studied in terms of geometry, dimensional accuracy, and fracture surface characteristics. The various characteristic features for MJF prints were observed here for parts produced according to four various print orientations and having different thicknesses, i.e., 1, 2 or 3 mm. The study showed that MJF technology can print such difficult shapes. However, the set of parameters allowing producing parts with highest geometrical and dimensional accuracy causes at the same time some microstructural issues, like great interlayer porosity or high number of non-processed powder particles embedded in the print structure.
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Affiliation(s)
- Martyna Adach
- 3D Center Sp. z o.o., Kwiatkowskiego 4, 52-407 Wroclaw, Poland; (M.A.); (K.N.)
| | - Paweł Sokołowski
- Department of Metal Forming, Welding and Metrology, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland;
- Correspondence:
| | - Tomasz Piwowarczyk
- Department of Metal Forming, Welding and Metrology, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland;
| | - Krzysztof Nowak
- 3D Center Sp. z o.o., Kwiatkowskiego 4, 52-407 Wroclaw, Poland; (M.A.); (K.N.)
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