• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
成果搜索

author:

Ullah, Ihsan (Ullah, Ihsan.) [1] | Ju, Jian (Ju, Jian.) [2] | Song, Yapei (Song, Yapei.) [3] | Chen, Siyi (Chen, Siyi.) [4] | Chen, Mengshi (Chen, Mengshi.) [5] | Wang, Siran (Wang, Siran.) [6] | Zhang, Wenzhen (Zhang, Wenzhen.) [7] | Chen, Wenhui (Chen, Wenhui.) [8] | You, Zhifeng (You, Zhifeng.) [9] | Li, Huaqiong (Li, Huaqiong.) [10] | Wen, Feng (Wen, Feng.) [11] | Zuo, Wei (Zuo, Wei.) [12]

Indexed by:

EI SCIE

Abstract:

Bioinert poly(methyl methacrylate) (PMMA) is widely employed as a bone cement material in orthopedic and trauma surgery applications; however, its susceptibility to bacterial infection and bioinert nature limits its clinical applications. In this study, we developed a PMMA-based bone cement incorporating a silver nanoparticle-carbon dots (AgNP@CDs) nanocomposite (similar to 70 nm) at concentrations (2 wt%) with a Young's modulus (324.74 +/- 7.08 MPa) to simultaneously combat bacterial infections, minimize cytotoxicity and support tissue regeneration. The CDs stabilize and functionalize AgNPs, improving their dispersion and bioavailability while enabling the controlled and sustained release of antimicrobial ions through incorporation with bone cement. The antibacterial efficacy of the composite was thoroughly evaluated, revealing its ability to disrupt bacterial cell membranes, generate reactive oxygen species and inhibit bacterial growth. These mechanisms collectively contribute to a significant reduction in bacterial growth of up to similar to 90% in both in vitro and in vivo studies. The incorporation of AgNP@CDs ensures sustained antimicrobial activity, preventing bacterial colonization by controlling the leaching of Ag ions. Biocompatibility assessments showed that the PMMA composite (PMMA@2Ag-CDs) significantly improved cell proliferation, adhesion and migration compared with pure PMMA bone cement. Additionally, histological analysis revealed that the PMMA group showed a fibrous layer thickness of 699 +/- 35.32 mu m, indicative of inflammation, while the PMMA@2Ag-CDs group reduced this thickness from 301.18 +/- 22.42 mu m on day 7 to 198.07 +/- 15.21 mu m on day 14, significantly decreasing inflammation. The PMMA@2Ag-CDs composite demonstrated better tissue integration, with organized collagen deposition and enhanced angiogenesis, indicating more efficient tissue regeneration. The reduced inflammation and improved tissue remodeling suggest that this composite promotes a more favorable tissue regeneration environment and minimizes complications. This study demonstrates that the PMMA@2Ag-CDs composite offers a promising solution for the prevention of infections and mitigation of inflammatory responses. Functionalization of bone cement through the incorporation of Ag nanoparticle-carbon dot nanocomposites is a promising strategy with potential practical applications in orthopedic and trauma surgery.

Keyword:

antimicrobial bacterial infection biocompatibility bone cement nanocomposite

Community:

  • [ 1 ] [Ullah, Ihsan]Wenzhou Med Univ, Affiliated Xiangshan Hosp, Joint Res Ctr Med, Ningbo 315700, Zhejiang, Peoples R China
  • [ 2 ] [Li, Huaqiong]Wenzhou Med Univ, Affiliated Xiangshan Hosp, Joint Res Ctr Med, Ningbo 315700, Zhejiang, Peoples R China
  • [ 3 ] [Zuo, Wei]Wenzhou Med Univ, Affiliated Xiangshan Hosp, Joint Res Ctr Med, Ningbo 315700, Zhejiang, Peoples R China
  • [ 4 ] [Ullah, Ihsan]Fuzhou Univ, Coll Chem Engn, Fuzhou 350116, Fujian, Peoples R China
  • [ 5 ] [Ullah, Ihsan]Univ Chinese Acad Sci, Wenzhou Inst, Zhejiang Engn Res Ctr Tissue Repair Mat, Wenzhou 325001, Zhejiang, Peoples R China
  • [ 6 ] [Ju, Jian]Univ Chinese Acad Sci, Wenzhou Inst, Zhejiang Engn Res Ctr Tissue Repair Mat, Wenzhou 325001, Zhejiang, Peoples R China
  • [ 7 ] [Wang, Siran]Univ Chinese Acad Sci, Wenzhou Inst, Zhejiang Engn Res Ctr Tissue Repair Mat, Wenzhou 325001, Zhejiang, Peoples R China
  • [ 8 ] [You, Zhifeng]Univ Chinese Acad Sci, Wenzhou Inst, Zhejiang Engn Res Ctr Tissue Repair Mat, Wenzhou 325001, Zhejiang, Peoples R China
  • [ 9 ] [Li, Huaqiong]Univ Chinese Acad Sci, Wenzhou Inst, Zhejiang Engn Res Ctr Tissue Repair Mat, Wenzhou 325001, Zhejiang, Peoples R China
  • [ 10 ] [Song, Yapei]Wenzhou Med Univ, Postgrad Training Base Alliance, Wenzhou 325000, Zhejiang, Peoples R China
  • [ 11 ] [Wen, Feng]Wenzhou Med Univ, Postgrad Training Base Alliance, Wenzhou 325000, Zhejiang, Peoples R China
  • [ 12 ] [Chen, Siyi]Zhejiang Top Med Med Dressing Co Ltd, Wenzhou 325025, Zhejiang, Peoples R China
  • [ 13 ] [Wen, Feng]Zhejiang Top Med Med Dressing Co Ltd, Wenzhou 325025, Zhejiang, Peoples R China
  • [ 14 ] [Chen, Mengshi]Gannan Med Univ, Key Lab Biomat & Biofabricat Tissue Engn, Ganzhou 341000, Jiangxi, Peoples R China
  • [ 15 ] [Wen, Feng]Gannan Med Univ, Key Lab Biomat & Biofabricat Tissue Engn, Ganzhou 341000, Jiangxi, Peoples R China
  • [ 16 ] [Zhang, Wenzhen]Wenzhou Med Univ, Affiliated Hosp & Yuying Childrens Hosp 2, Wenzhou 325035, Zhejiang, Peoples R China
  • [ 17 ] [Chen, Wenhui]Yuhuan Peoples Hosp, Taizhou 317600, Zhejiang, Peoples R China
  • [ 18 ] [You, Zhifeng]Shenzhen Univ Adv Technol, Fac Biomed Engn, Shenzhen 518107, Peoples R China

Reprint 's Address:

  • [Li, Huaqiong]Wenzhou Med Univ, Affiliated Xiangshan Hosp, Joint Res Ctr Med, Ningbo 315700, Zhejiang, Peoples R China;;[Ju, Jian]Univ Chinese Acad Sci, Wenzhou Inst, Zhejiang Engn Res Ctr Tissue Repair Mat, Wenzhou 325001, Zhejiang, Peoples R China;;[Li, Huaqiong]Univ Chinese Acad Sci, Wenzhou Inst, Zhejiang Engn Res Ctr Tissue Repair Mat, Wenzhou 325001, Zhejiang, Peoples R China;;[Wen, Feng]Wenzhou Med Univ, Postgrad Training Base Alliance, Wenzhou 325000, Zhejiang, Peoples R China;;[Wen, Feng]Zhejiang Top Med Med Dressing Co Ltd, Wenzhou 325025, Zhejiang, Peoples R China;;[Wen, Feng]Gannan Med Univ, Key Lab Biomat & Biofabricat Tissue Engn, Ganzhou 341000, Jiangxi, Peoples R China

Show more details

Related Keywords:

Source :

REGENERATIVE BIOMATERIALS

ISSN: 2056-3418

Year: 2025

Volume: 12

5 . 7 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

Online/Total:1461/13843443
Address:FZU Library(No.2 Xuyuan Road, Fuzhou, Fujian, PRC Post Code:350116) Contact Us:0591-22865326
Copyright:FZU Library Technical Support:Beijing Aegean Software Co., Ltd. 闽ICP备05005463号-1