A Novel Antibacterial Titanium Modification with a Sustained Release of Pac-525

For the benefit of antibacterial Ti on orthopedic and dental implants, a bioactive coating (Pac@PLGA MS/HA coated Ti) was deposited on the surface of pure titanium (Ti), which included two layers: an acid–alkali heat pretreated biomimetic mineralization layer and an electrosprayed Poly (D,L-lactide-...

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Main Authors: Yuzhu He, Yuanyuan Li, Enjun Zuo, Songling Chai, Xiang Ren, Tao Fei, Guowu Ma, Xiumei Wang, Huiying Liu
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/11/12/3306
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author Yuzhu He
Yuanyuan Li
Enjun Zuo
Songling Chai
Xiang Ren
Tao Fei
Guowu Ma
Xiumei Wang
Huiying Liu
author_facet Yuzhu He
Yuanyuan Li
Enjun Zuo
Songling Chai
Xiang Ren
Tao Fei
Guowu Ma
Xiumei Wang
Huiying Liu
author_sort Yuzhu He
collection DOAJ
description For the benefit of antibacterial Ti on orthopedic and dental implants, a bioactive coating (Pac@PLGA MS/HA coated Ti) was deposited on the surface of pure titanium (Ti), which included two layers: an acid–alkali heat pretreated biomimetic mineralization layer and an electrosprayed Poly (D,L-lactide-co- glycolic acid) (PLGA) microsphere layer as a sustained-release system. Hydroxyapatite (HA) in mineralization layer was primarily prepared on the Ti followed by the antibacterial coating of Pac-525 loaded by PLGA microspheres. After observing the antimicrobial peptides distributed uniformly on the titanium surface, the release assay showed that the release of Pac-525 from Pac@PLGA MS/HA coated Ti provided a large initial burst followed by a slow release at a flat rate. Pac@PLGA MS/HA coated Ti exhibited a strong cytotoxicity to both Gram-negative bacteria (<i>Escherichia coli</i>) and Gram-positive bacteria (<i>Staphylococcus aureus</i>). In addition, Pac@PLGA MS/HA coated Ti did not affect the growth and adhesion of the osteoblast-like cell line, MC3T3-E1. These data suggested that a bionic mineralized composite coating with long-term antimicrobial activity was successfully prepared.
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spelling doaj.art-03ec3b89ce384ea9b434df93983857bf2023-11-23T09:50:46ZengMDPI AGNanomaterials2079-49912021-12-011112330610.3390/nano11123306A Novel Antibacterial Titanium Modification with a Sustained Release of Pac-525Yuzhu He0Yuanyuan Li1Enjun Zuo2Songling Chai3Xiang Ren4Tao Fei5Guowu Ma6Xiumei Wang7Huiying Liu8School of Stomatology, Dalian Medical University, Dalian 116044, ChinaSchool of Stomatology, Dalian Medical University, Dalian 116044, ChinaSchool of Stomatology, Dalian Medical University, Dalian 116044, ChinaSchool of Stomatology, Dalian Medical University, Dalian 116044, ChinaSchool of Stomatology, Dalian Medical University, Dalian 116044, ChinaSchool of Stomatology, Dalian Medical University, Dalian 116044, ChinaSchool of Stomatology, Dalian Medical University, Dalian 116044, ChinaState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, ChinaSchool of Stomatology, Dalian Medical University, Dalian 116044, ChinaFor the benefit of antibacterial Ti on orthopedic and dental implants, a bioactive coating (Pac@PLGA MS/HA coated Ti) was deposited on the surface of pure titanium (Ti), which included two layers: an acid–alkali heat pretreated biomimetic mineralization layer and an electrosprayed Poly (D,L-lactide-co- glycolic acid) (PLGA) microsphere layer as a sustained-release system. Hydroxyapatite (HA) in mineralization layer was primarily prepared on the Ti followed by the antibacterial coating of Pac-525 loaded by PLGA microspheres. After observing the antimicrobial peptides distributed uniformly on the titanium surface, the release assay showed that the release of Pac-525 from Pac@PLGA MS/HA coated Ti provided a large initial burst followed by a slow release at a flat rate. Pac@PLGA MS/HA coated Ti exhibited a strong cytotoxicity to both Gram-negative bacteria (<i>Escherichia coli</i>) and Gram-positive bacteria (<i>Staphylococcus aureus</i>). In addition, Pac@PLGA MS/HA coated Ti did not affect the growth and adhesion of the osteoblast-like cell line, MC3T3-E1. These data suggested that a bionic mineralized composite coating with long-term antimicrobial activity was successfully prepared.https://www.mdpi.com/2079-4991/11/12/3306titanium modificationelectrosprayacid–alkali heat pretreated mineralizationPac-525
spellingShingle Yuzhu He
Yuanyuan Li
Enjun Zuo
Songling Chai
Xiang Ren
Tao Fei
Guowu Ma
Xiumei Wang
Huiying Liu
A Novel Antibacterial Titanium Modification with a Sustained Release of Pac-525
Nanomaterials
titanium modification
electrospray
acid–alkali heat pretreated mineralization
Pac-525
title A Novel Antibacterial Titanium Modification with a Sustained Release of Pac-525
title_full A Novel Antibacterial Titanium Modification with a Sustained Release of Pac-525
title_fullStr A Novel Antibacterial Titanium Modification with a Sustained Release of Pac-525
title_full_unstemmed A Novel Antibacterial Titanium Modification with a Sustained Release of Pac-525
title_short A Novel Antibacterial Titanium Modification with a Sustained Release of Pac-525
title_sort novel antibacterial titanium modification with a sustained release of pac 525
topic titanium modification
electrospray
acid–alkali heat pretreated mineralization
Pac-525
url https://www.mdpi.com/2079-4991/11/12/3306
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