Innovative Nanoporous Titania Surface with Stabilized Antimicrobial Ag-Nanoparticles via Salvadora persica L. Roots (Mis
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Innovative Nanoporous Titania Surface with Stabilized Antimicrobial Ag-Nanoparticles via Salvadora persica L. Roots (Miswak) Extract for Dental Applications Sahar Fadlallah 1
&
Sanaa M.F. Gad El-Rab 2,3 & Eman M. Halwani 4
# Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Oral infections are still one of the major problems facing dental implants and cause delay in the healing process which leads eventually to the failure of the implant surgery and bone loss. In this study, Salvadora persica L. root (miswak), SPE, extract acts as a bio-reductant solution to produce a tiny size (< 20 nm) AgNPs with spherical shape spread easily on nanoporous anodized titanium implant (NPAT) surface to increase its corrosion resistance and antibacterial properties for good bone integration after dental surgeries. AgNPs were stabilized as nano-granules like pearls on NPAT surface formed our novel modified titanium surface named AgNPs(SPE)/NPAT where its morphology and structure were confirmed by transmission electron microscope (TEM), scanning electron microscope (SEM), and energy-dispersive X-ray analysis (EDX). Electrochemical impedance spectroscopy (EIS) with its fitting data based on Rs[RpQp][RbQb] was used to predict the duplex structure of titania film and to confirm its stability in a simulated physiological solution where the corrosion resistance increase from 10 to 72.9 k ohm/cm2 and from 4 to 5.53 k ohm/cm2 for the outer and the inner layer respectively, after 1 month of immersion in Hank’s solution at 37 °C. The pour plate method was used to achieve the antibacterial efficiency of the AgNPs(SPE)/NPAT against Staphylococcus aureus (ATCC6538) and established its significant inhibition better than NPAT surface that explains the vital role of SPE to keep the oral cavity with implant surfaces wellness. Keywords S. aureus . Salvadora persica L. roots . Miswak extract . Green synthesis AgNPs . Nanoporous TiO2/Ti
1 Introduction Oral infections cause many fitness problems not only at the level of the gingival and teeth but extend the risk to all body origins because of the mouth is the first and the most important gate to the human body [1]. Daily oral and dental hygiene is a requirement but the need for extra care for the mouth becomes vital in the case of dental implants or orthodontic
* Sahar Fadlallah [email protected]; [email protected] 1
Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
2
Botany and Microbiology Department, Faculty of Science, Assuit University, Assuit 71516, Egypt
3
Biotechnology Department, Faculty of Science, Taif University, Taif, Kingdom of Saudi Arabia
4
Biology Department, Faculty of Science, Taif University, Taif, Kingdom of Saudi Arabia
processes due to the severity of repeated exposure to bacterial infections [2]. There are a lot of clinical studies that demonstrated 700 bacterial species or more in the oral cavity, but the most important number of them such as Streptococcus mutants, Streptococcus pyogenes, and Staphyloco
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