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Szczodra A, Houaoui A, Salminen T, Hannula M, Gobbo VA, Ghanavati S, Miettinen S, Massera J. Pore graded borosilicate bioactive glass scaffolds: in vitro dissolution and cytocompatibility. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2024; 35:17. [PMID: 38507150 PMCID: PMC10954867 DOI: 10.1007/s10856-024-06791-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 03/05/2024] [Indexed: 03/22/2024]
Abstract
3D borosilicate bioactive glass (1393B20 and B12.5MgSr) scaffolds were prepared by robocasting, with and without a dense layer at the top. Pore graded scaffolds are promising as they allow for membrane deposition and could limit the risk of soft tissue infiltration. In vitro dissolution was studied in tris(hydroxymethyl)aminomethane (TRIS) and Simulated Body Fluid (SBF). 1393B20 scaffolds dissolved faster than B12.5MgSr in TRIS whereas they dissolved slower in SBF. The difference in dissolution profiles, as a function of the medium used, is assigned to the different rates of precipitation of hydroxyapatite (HA). While the precipitation of calcium phosphate (CaP) in the form of HA, first sign of bioactivity, was confirmed by ICP, FTIR-ATR and SEM-EDX analysis for both compositions, 1393B20 was found to precipitate HA at a faster rate. The presence of a dense top layer did not significantly impact the dissolution rate and CaP precipitation. In vitro cell culture was performed using human adipose-derived stem cells (hADSCs). Prior to cell plating, a preincubation of 3 days was found optimum to prevent burst ion release. In direct contact, cells proliferate and spread on the scaffolds while maintaining characteristic spindle morphology. Cell plated on 1393B20 scaffolds showed increased viability when compared to cell plated on B12.5MgSr. The lower cell viability, when testing B12.5MgSr, was assigned to the depletion of Ca2+ ions from culture medium and higher pH. Static cell culture leads to believe that the scaffold produced from the 1393B20 glass composition are promising in bone regeneration applications.
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Affiliation(s)
- Agata Szczodra
- Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland.
| | - Amel Houaoui
- Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Turkka Salminen
- Tampere University, Faculty of Engineering and Natural Sciences, Tampere, Finland
| | - Markus Hannula
- Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | | | - Sonya Ghanavati
- Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
| | - Susanna Miettinen
- Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
- Research Services, Wellbeing Services County of Pirkanmaa, Tampere University Hospital, Tampere, Finland
| | - Jonathan Massera
- Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland
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Qu T, Chang Q, You D, Huang M, Gong X, Wang J, Li B, Zheng G, Hu F, Zhong F, Gong C, Liu H. Fabrication of Adsorption-Type Hierarchical Functional Films by Using a Facile Swollen Based Breath Figure Method. Macromol Rapid Commun 2022; 43:e2200403. [PMID: 35926148 DOI: 10.1002/marc.202200403] [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: 04/28/2022] [Revised: 07/08/2022] [Indexed: 11/11/2022]
Abstract
The morphology transition from primary to hierarchical adsorption-type microporous domains of amphiphilic block copolymer (BCP) honeycomb-structured films is demonstrated by a facile swollen based breath figure (BF) method. The characteristic parameters of poly(4-vinylpyridine)-block-polystyrene (P4VP-b-PS) hierarchical micro- and submicro-porous films can be controlled by changing the length of segments or subsequent swelling conditions. A plausible mechanism is demonstrated in this research. A typical amphiphilic BCP with very low volume content of hydrophilic blocks (fP4VP ≤ 0.050) can efficiently stabilize water droplets and inherently assist in the formation of morphology transition. This BCP film can be used for Cr(VI) removal from wastewater, which additionally has enormous potential application in the field of novel optical devices, soft lithography, size-selective separation, etc. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ting Qu
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Qicheng Chang
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Dekang You
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Man Huang
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Xianyan Gong
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Jie Wang
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Bojie Li
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Genwen Zheng
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China.,Hubei Engineering & Technology Research Center for Functional Materials from Biomass, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Fuqiang Hu
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Fei Zhong
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Chunli Gong
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China.,Hubei Engineering & Technology Research Center for Functional Materials from Biomass, Hubei Engineering University, Xiaogan, Hubei, 432000, China
| | - Hai Liu
- School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China.,Hubei Engineering & Technology Research Center for Functional Materials from Biomass, Hubei Engineering University, Xiaogan, Hubei, 432000, China
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A Brief Insight to the Electrophoretic Deposition of PEEK-, Chitosan-, Gelatin-, and Zein-Based Composite Coatings for Biomedical Applications: Recent Developments and Challenges. SURFACES 2021. [DOI: 10.3390/surfaces4030018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Electrophoretic deposition (EPD) is a powerful technique to assemble metals, polymer, ceramics, and composite materials into 2D, 3D, and intricately shaped implants. Polymers, proteins, and peptides can be deposited via EPD at room temperature without affecting their chemical structures. Furthermore, EPD is being used to deposit multifunctional coatings (i.e., bioactive, antibacterial, and biocompatible coatings). Recently, EPD was used to architect multi-structured coatings to improve mechanical and biological properties along with the controlled release of drugs/metallic ions. The key characteristics of EPD coatings in terms of inorganic bioactivity and their angiogenic potential coupled with antibacterial properties are the key elements enabling advanced applications of EPD in orthopedic applications. In the emerging field of EPD coatings for hard tissue and soft tissue engineering, an overview of such applications will be presented. The progress in the development of EPD-based polymeric or composite coatings, including their application in orthopedic and targeted drug delivery approaches, will be discussed, with a focus on the effect of different biologically active ions/drugs released from EPD deposits. The literature under discussion involves EPD coatings consisting of chitosan (Chi), zein, polyetheretherketone (PEEK), and their composites. Moreover, in vitro and in vivo investigations of EPD coatings will be discussed in relation to the current main challenge of orthopedic implants, namely that the biomaterial must provide good bone-binding ability and mechanical compatibility.
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