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A Multifunctional Antibacterial and Osteogenic Nanomedicine: QAS-Modified Core-Shell Mesoporous Silica Containing Ag Nanoparticles
Joint Authors
Li, Dexiong
Qiu, Yubei
Zhang, Sihui
Chen, Zexi
Chen, Jiang
Zhang, Mi
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-19
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Treatments for infectious bone defects such as periodontitis require antibacterial and osteogenic differentiation capabilities.
Nanotechnology has prompted the development of multifunctional material.
In this research, we aim to synthesize a nanoparticle that can eliminate periodontal pathogenic microorganisms and simultaneously stimulate new bone tissue regeneration and mineralization.
QAS-modified core-shell mesoporous silica containing Ag nanoparticles (Ag@QHMS) was successfully synthesized through the classic hydrothermal method and surface quaternary ammonium salt functionalization.
The Ag@QHMS in vitro antibacterial activity was explored via coculture with Staphylococcus aureus, Escherichia coli, and Porphyromonas gingivalis biofilms.
Bone mesenchymal stem cells (BMSCs) were selected for observing cytotoxicity, apoptosis, and osteogenic differentiation.
Ag@QHMS showed a good sustained release profile of Ag+ and a QAS-grafted mesoporous structure.
Compared with the single-contact antibacterial activity of QHMS, Ag@QHMS exhibited a more efficient and stable concentration-dependent antimicrobial efficacy; the minimum inhibitory concentration was within 100 μg/ml, which was below the BMSC biocompatibility concentration (200 μg/ml).
Thus, apoptosis would not occur while promoting the increased expression of osteogenic-associated factors, such as runt-related transcription factor 2 (RUNX2), alkaline phosphatase (ALP), osteopontin (OPN), osteocalcin (OCN), bone sialoprotein (BSP), and collagen type 1 (COL-1).
A safe concentration of particles can stimulate cell alkaline phosphatase and matrix calcium salt deposition.
The dual antibacterial effect from the direct contact killing of QAS and the sustained release of Ag nanoparticles, along with the Ag-promoted osteogenic differentiation, had been verified and utilized in Ag@QHMS.
This system demonstrates the potential for utilizing pluripotent biomaterials to treat complex lesions.
American Psychological Association (APA)
Li, Dexiong& Qiu, Yubei& Zhang, Sihui& Zhang, Mi& Chen, Zexi& Chen, Jiang. 2020. A Multifunctional Antibacterial and Osteogenic Nanomedicine: QAS-Modified Core-Shell Mesoporous Silica Containing Ag Nanoparticles. BioMed Research International،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1133990
Modern Language Association (MLA)
Li, Dexiong…[et al.]. A Multifunctional Antibacterial and Osteogenic Nanomedicine: QAS-Modified Core-Shell Mesoporous Silica Containing Ag Nanoparticles. BioMed Research International No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1133990
American Medical Association (AMA)
Li, Dexiong& Qiu, Yubei& Zhang, Sihui& Zhang, Mi& Chen, Zexi& Chen, Jiang. A Multifunctional Antibacterial and Osteogenic Nanomedicine: QAS-Modified Core-Shell Mesoporous Silica Containing Ag Nanoparticles. BioMed Research International. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1133990
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1133990