New biodegradable nanoparticles-in-nanofibers based membranes for guided periodontal tissue and bone regeneration with enhanced antibacterial activity

© 2020 The Authors. Published by Elsevier B.V. on behalf of Cairo University..

INTRODUCTION: Guided tissue regeneration (GTR) and guided bone regeneration (GBR) are commonly used surgical procedures for the repair of damaged periodontal tissues. These procedures include the use of a membrane as barrier to prevent soft tissue ingrowth and to create space for slowly regenerating periodontium and bone. Recent approaches involve the use of membranes/scaffolds based on resorbable materials. These materials provide the advantage of dissolving by time without the need of surgical intervention to remove the scaffolds.

OBJECTIVES: This study aimed at preparing a new series of nanofibrous scaffolds for GTR/GBR applications with enhanced mechanical properties, cell adhesion, biocompatibility and antibacterial properties.

METHODS: Electrospun nanofibrous scaffolds based on polylactic acid/cellulose acetate (PLA/CA) or poly(caprolactone) (PCL) polymers were prepared and characterized. Different concentrations of green-synthesized silver nanoparticles, AgNPs (1-2% w/v) and hydroxyapatite nanoparticles, HANPs (10-20% w/v) were incorporated into the scaffolds to enhance the antibacterial and bone regeneration activity.

RESULTS: In-vitro studies showed that addition of HANPs improved the cell viability by around 50% for both types of nanofibrous scaffolds. The tensile properties were also improved through addition of 10% HANPs but deteriorated upon increasing the concentration to 20%. AgNPs significantly improved the antibacterial activity with 40 mm inhibition zone after 32 days. Additionally, the nanofibrous scaffolds showed a desirable degradation profile with losing around 40-70% of its mass in 8 weeks.

CONCLUSIONS: The obtained results show that the developed nanofibrous membranes are promising scaffolds for both GTR and GBR applications.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:28

Enthalten in:

Journal of advanced research - 28(2021) vom: 17. Feb., Seite 51-62

Sprache:

Englisch

Beteiligte Personen:

Abdelaziz, Dina [VerfasserIn]
Hefnawy, Amr [VerfasserIn]
Al-Wakeel, Essam [VerfasserIn]
El-Fallal, Abeer [VerfasserIn]
El-Sherbiny, Ibrahim M [VerfasserIn]

Links:

Volltext

Themen:

GBR
GTR
Journal Article
Nanofibers
Nanoparticles
Periodontal

Anmerkungen:

Date Revised 19.04.2022

published: Electronic-eCollection

Citation Status PubMed-not-MEDLINE

doi:

10.1016/j.jare.2020.06.014

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM31928347X