{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T14:35:03Z","timestamp":1778596503174,"version":"3.51.4"},"reference-count":30,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,2,24]],"date-time":"2023-02-24T00:00:00Z","timestamp":1677196800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Micromachines"],"abstract":"<jats:p>In articular joint implants, polymeric inserts are usually exploited for on-contact sliding surfaces to guarantee low friction and wear, a high load-bearing capacity, impact strength and stiffness, and biocompatibility. Surface micro-structuring can drastically reduce friction and wear by promoting hydrostatic friction due to synovial fluid. Ultra-High Molecular Weight Polyethylene (UHMWPE) is a suitable material for these applications due to its strong chemical resistance, excellent resistance to stress, cracking, abrasion, and wear, and self-lubricating property. However, surface micro-texturing of UHMWPE is hardly achievable with the currently available processes. The present study investigates UHMWPE\u2019s micro-textured surface replication capability via injection molding, comparing the results with the more easily processable High-Density Polyethylene (HDPE). Four different micro-texture cavities were designed and fabricated on a steel mold by micro-EDM milling, and used for the experimental campaign. Complete samples were fabricated with both materials. Then, the mold and samples were geometrically characterized, considering the dimensions of the features and the texture layout. The replication analysis showed that HDPE samples present geometrical errors that span from 1% to 9% resulting in an average error of 4.3%. In comparison, the UHMWPE samples display a higher variability, although still acceptable, with percentage errors ranging from 2% to 31% and an average error of 11.4%.<\/jats:p>","DOI":"10.3390\/mi14030523","type":"journal-article","created":{"date-parts":[[2023,2,24]],"date-time":"2023-02-24T03:01:01Z","timestamp":1677207661000},"page":"523","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Replication Study of Molded Micro-Textured Samples Made of Ultra-High Molecular Weight Polyethylene for Medical Applications"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4025-645X","authenticated-orcid":false,"given":"Francesco","family":"Modica","sequence":"first","affiliation":[{"name":"CNR-STIIMA Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing, Via P. Lembo, 38F, 70124 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7617-3368","authenticated-orcid":false,"given":"Vito","family":"Basile","sequence":"additional","affiliation":[{"name":"CNR-STIIMA Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing, Via P. Lembo, 38F, 70124 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9476-3310","authenticated-orcid":false,"given":"Rossella","family":"Surace","sequence":"additional","affiliation":[{"name":"CNR-STIIMA Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing, Via P. Lembo, 38F, 70124 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6144-2123","authenticated-orcid":false,"given":"Irene","family":"Fassi","sequence":"additional","affiliation":[{"name":"CNR-STIIMA Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing, Via A. Corti, 12, 20133 Milano, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"649","DOI":"10.1054\/arth.2002.33664","article-title":"A literature review of the association between wear rate and osteolysis in total hip arthroplasty","volume":"17","author":"Dumbleton","year":"2002","journal-title":"Arthroplasty"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Eliaz, N. (2019). Corrosion of metallic biomaterials: A review. Materials, 12.","DOI":"10.3390\/ma12030407"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"e12050","DOI":"10.1016\/j.heliyon.2022.e12050","article-title":"Adopted walking condition for computational simulation approach on bearing of hip joint prosthesis: Review over the past 30 years","volume":"8","author":"Jamari","year":"2022","journal-title":"Heliyon"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Fu, J., Jin, Z.M., and Wang, J.W. (2019). UHMWPE Biomaterials for Joint Implants, Springer.","DOI":"10.1007\/978-981-13-6924-7"},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Hussain, M., Naqvi, R.A., Abbas, N., Khan, S.M., Nawaz, S., Hussain, A., and Khalid, M.W. (2020). Ultra-high-molecular-weight-polyethylene (UHMWPE) as a promising polymer material for biomedical applications: A concise review. Polymers, 12.","DOI":"10.3390\/polym12020323"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"495","DOI":"10.3390\/ma12030495","article-title":"Materials for hip prostheses: A review of wear and loading considerations","volume":"12","author":"Massimiliano","year":"2019","journal-title":"Materials"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"77","DOI":"10.5312\/wjo.v6.i1.77","article-title":"Biotribology of artificial hip joints","volume":"6","author":"Mattei","year":"2015","journal-title":"World J. Orthop."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Bracco, P., Bellare, A., Bistolfi, A., and Affatato, S. (2017). Ultra-High Molecular Weight Polyethylene: Influence of the Chemical, Physical and Mechanical Properties on the Wear Behavior. A Review. Materials, 10.","DOI":"10.3390\/ma10070791"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"433","DOI":"10.1016\/j.jmbbm.2008.12.006","article-title":"Ultra high molecular weight polyethylene: Mechanics, morphology, and clinical behavior","volume":"2","author":"Sobieraj","year":"2009","journal-title":"J. Mech. Behav. Biomed."},{"key":"ref_10","unstructured":"Usami, H., Sato, T., Kanda, Y., and Nishio, S. (2017). Key Engineering Materials, Trans Tech Publications Ltd."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1016\/j.surfcoat.2018.05.056","article-title":"Mechanical micro-texturing of Ti-6Al-4V surfaces for improved wettability and bio-tribological performances","volume":"349","author":"Pratap","year":"2018","journal-title":"Surf. Coat. Technol."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1016\/j.jmbbm.2015.10.023","article-title":"Towards near-permanent CoCrMo prosthesis surface by combining micro-texturing and low temperature plasma carburising","volume":"55","author":"Dong","year":"2016","journal-title":"J. Mech. Behav. Biomed. Mater."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Jamari, J., Ammarullah, M., Saad, A., Syahrom, A., Uddin, M., van der Heide, E., and Basri, H. (2021). The effect of bottom profile dimples on the femoral head on wear in metal-on-metal total hip arthroplasty. J. Funct. Biomater., 12.","DOI":"10.3390\/jfb12020038"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1016\/j.jmbbm.2017.05.011","article-title":"The impact of surface and geometry on coefficient of friction of artificial hip joints","volume":"72","author":"Choudhury","year":"2017","journal-title":"J. Mech. Behav. Biomed. Mater."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"109529","DOI":"10.1016\/j.eurpolymj.2020.109529","article-title":"UHMWPE for biomedical applications: Performance and functionalization","volume":"125","author":"Avinash","year":"2020","journal-title":"Eur. Polym. J."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Zhang, H., and Liang, Y. (2018). Extrusion processing of ultra-high molecular weight polyethylene. Extrus. Met. Polym. Food Prod., 165\u2013179.","DOI":"10.5772\/intechopen.72212"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"2313","DOI":"10.1002\/pen.25234","article-title":"Injection molding of delamination-free ultra-high-molecular-weight polyethylene","volume":"59","author":"Galip","year":"2019","journal-title":"Polym. Eng. Sci."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1016\/j.jmbbm.2018.02.025","article-title":"Optimization simulated injection molding process for ultrahigh molecular weight polyethylene nanocomposite hip liner using response surface methodology and simulation of mechanical behavior","volume":"81","author":"Heidari","year":"2018","journal-title":"J. Mech. Behav. Biomed. Mater."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.matdes.2017.06.055","article-title":"Micro injection molding processing of UHMWPE using ultrasonic vibration energy","volume":"132","author":"Elizalde","year":"2017","journal-title":"Mater. Des."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"2200059","DOI":"10.1002\/adem.202200059","article-title":"Injection-Molded Ultrahigh Molecular Weight Polyethylene Material with Improved Moldability for Artificial Joint Implants Design","volume":"24","author":"Ayad","year":"2022","journal-title":"Adv. Eng. Mater."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Yilmaz, G., Ellingham, T., and Turng, L.-S. (2018). Improved Processability and the Processing-Structure-Properties Relationship of Ultra-High Molecular Weight Polyethylene via Supercritical Nitrogen and Carbon Dioxide in Injection Molding. Polymers, 10.","DOI":"10.3390\/polym10010036"},{"key":"ref_22","first-page":"043001","article-title":"Tribological performance of surface texturing in mechanical applications-A review","volume":"8.4","author":"Ping","year":"2020","journal-title":"Surf. Topogr. Metrol. Prop."},{"key":"ref_23","unstructured":"Kurtz, S.M. (2016). UHMWPE Biomaterials Handbook: Ultra High Molecular Weight Polyethylene in Total Joint Replacement and Medical Devices, Elsevier Inc.. [3rd ed.]."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"024501","DOI":"10.1115\/1.4032324","article-title":"A new process combining micro-electro discharge machining milling and sinking for fast fabrication of microchannels with draft angle","volume":"4","author":"Modica","year":"2016","journal-title":"J. Micro Nano-Manuf."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/j.procir.2022.06.019","article-title":"Micro-texturing of molds via Stereolithography for the fabrication of medical components","volume":"110","author":"Basile","year":"2022","journal-title":"Procedia CIRP"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"011006","DOI":"10.1115\/1.4032035","article-title":"Design and fabrication of a polymeric microfilter for medical applications","volume":"4.1","author":"Surace","year":"2016","journal-title":"J. Micro Nano Manuf."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"4565","DOI":"10.1007\/s00170-017-1178-0","article-title":"I Evaluation of mold roughness influence on injected thin micro-cavities","volume":"94","author":"Bellantone","year":"2018","journal-title":"Int. J. Adv. Manuf. Tech."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1016\/j.jmapro.2019.04.032","article-title":"Effect of cavity surface roughness and wettability on the filling flow in micro injection molding","volume":"43","author":"Surace","year":"2019","journal-title":"J. Manuf. Process."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Surace, R., Basile, V., Bellantone, V., Modica, F., and Fassi, I. (2021). Micro Injection Molding of Thin Cavities Using Stereolithography for Mold Fabrication. Polymers, 13.","DOI":"10.3390\/polym13111848"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"508","DOI":"10.3139\/217.2466","article-title":"The Influence of Injection Molding and Injection Compression Molding on UHMWPE Polymer Microfabrication","volume":"26","author":"Kuo","year":"2011","journal-title":"Int. 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