{"title":"羟基磷灰石涂层上功能性硅酸钙涂层的显微结构及体外特性研究。","authors":"Jarnail Singh, Sukhpal Singh Chatha, Hazoor Singh","doi":"10.1007/s40204-022-00183-w","DOIUrl":null,"url":null,"abstract":"<p><p>The delayed tissue-implant interactions in metallic implants coated with hydroxyapatite (HA) paved the way for the development of alternative bioactive coatings. In this study, bi-layered functional gradient (HA-CS) coating was formulated by the atmospheric plasma spray (APS) process on Ti6Al4V alloy. The HA layer was applied at the metal interface to ensure long-term stability, while the calcium silicate (CS) outer layer was applied to achieve fast tissue-implant interactions. Moreover, single-layered HA and CS coating were also formulated for comparative analysis. The phase compositions, coating microstructure, chemical properties, microhardness, porosity, surface roughness, and in-vitro bioactivity were investigated. The CS top layer showed high porosity and surface roughness with respect to the inner HA layer, which constitutes an optimum microstructure to promote bioactivity. The microhardness of the outer CS layer of HA-CS was 520.3 ± 80.8 HV, while the corresponding value for the inner HA layer was 291.7 ± 45.7 HV. HA-CS and CS coatings demonstrated higher in-vitro bioactivity compared to HA coating. On the contrary, HA coating (3.76 mpy) displayed better corrosion resistance than the HA-CS (4.17 mpy) and CS coatings (4.34 mpy). The in-vitro results indicated that the HA-CS coating could promote the healthy development of osteoblast-like MG-63.</p>","PeriodicalId":20691,"journal":{"name":"Progress in Biomaterials","volume":null,"pages":null},"PeriodicalIF":4.4000,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8927532/pdf/40204_2022_Article_183.pdf","citationCount":"7","resultStr":"{\"title\":\"Microstructural and in-vitro characteristics of functional calcium silicate topcoat on hydroxyapatite coating for bio-implant applications.\",\"authors\":\"Jarnail Singh, Sukhpal Singh Chatha, Hazoor Singh\",\"doi\":\"10.1007/s40204-022-00183-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The delayed tissue-implant interactions in metallic implants coated with hydroxyapatite (HA) paved the way for the development of alternative bioactive coatings. In this study, bi-layered functional gradient (HA-CS) coating was formulated by the atmospheric plasma spray (APS) process on Ti6Al4V alloy. The HA layer was applied at the metal interface to ensure long-term stability, while the calcium silicate (CS) outer layer was applied to achieve fast tissue-implant interactions. Moreover, single-layered HA and CS coating were also formulated for comparative analysis. The phase compositions, coating microstructure, chemical properties, microhardness, porosity, surface roughness, and in-vitro bioactivity were investigated. The CS top layer showed high porosity and surface roughness with respect to the inner HA layer, which constitutes an optimum microstructure to promote bioactivity. The microhardness of the outer CS layer of HA-CS was 520.3 ± 80.8 HV, while the corresponding value for the inner HA layer was 291.7 ± 45.7 HV. HA-CS and CS coatings demonstrated higher in-vitro bioactivity compared to HA coating. On the contrary, HA coating (3.76 mpy) displayed better corrosion resistance than the HA-CS (4.17 mpy) and CS coatings (4.34 mpy). The in-vitro results indicated that the HA-CS coating could promote the healthy development of osteoblast-like MG-63.</p>\",\"PeriodicalId\":20691,\"journal\":{\"name\":\"Progress in Biomaterials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.4000,\"publicationDate\":\"2022-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8927532/pdf/40204_2022_Article_183.pdf\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress in Biomaterials\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s40204-022-00183-w\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2022/2/22 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, BIOMEDICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Biomaterials","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s40204-022-00183-w","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/2/22 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ENGINEERING, BIOMEDICAL","Score":null,"Total":0}
Microstructural and in-vitro characteristics of functional calcium silicate topcoat on hydroxyapatite coating for bio-implant applications.
The delayed tissue-implant interactions in metallic implants coated with hydroxyapatite (HA) paved the way for the development of alternative bioactive coatings. In this study, bi-layered functional gradient (HA-CS) coating was formulated by the atmospheric plasma spray (APS) process on Ti6Al4V alloy. The HA layer was applied at the metal interface to ensure long-term stability, while the calcium silicate (CS) outer layer was applied to achieve fast tissue-implant interactions. Moreover, single-layered HA and CS coating were also formulated for comparative analysis. The phase compositions, coating microstructure, chemical properties, microhardness, porosity, surface roughness, and in-vitro bioactivity were investigated. The CS top layer showed high porosity and surface roughness with respect to the inner HA layer, which constitutes an optimum microstructure to promote bioactivity. The microhardness of the outer CS layer of HA-CS was 520.3 ± 80.8 HV, while the corresponding value for the inner HA layer was 291.7 ± 45.7 HV. HA-CS and CS coatings demonstrated higher in-vitro bioactivity compared to HA coating. On the contrary, HA coating (3.76 mpy) displayed better corrosion resistance than the HA-CS (4.17 mpy) and CS coatings (4.34 mpy). The in-vitro results indicated that the HA-CS coating could promote the healthy development of osteoblast-like MG-63.
期刊介绍:
Progress in Biomaterials is a multidisciplinary, English-language publication of original contributions and reviews concerning studies of the preparation, performance and evaluation of biomaterials; the chemical, physical, biological and mechanical behavior of materials both in vitro and in vivo in areas such as tissue engineering and regenerative medicine, drug delivery and implants where biomaterials play a significant role. Including all areas of: design; preparation; performance and evaluation of nano- and biomaterials in tissue engineering; drug delivery systems; regenerative medicine; implantable medical devices; interaction of cells/stem cells on biomaterials and related applications.