Evaluation of the antibacterial activity, surface microhardness, and color change of glass ionomer cement containing green synthesized Ag@MoS nanocomposite after thermal aging.

Objective: The aim of our study is to compare the antibacterial activity, surface microhardness, and color change of glass ionomer cement (GIC) with the addition of green-synthesized silver nanoparticles (Ag NP) and silver molybdenum disulfide (Ag@MoS) nanocomposites (NC) after thermal aging conditions.

Methods: Our study consisted of five groups (n = 7): only GIC (control); GIC + Green-synthesized Ag NP; GIC + Green-synthesized Ag@MoS NC; GIC + Chemically synthesized Ag NP, and GIC + Chemically synthesized Ag@MoS NC. The nanoparticles were synthesized, characterized using the required protocols, and added to the liquid part of the GIC.

Benefiting from Both Ethanol Oxidation and Bidentate Thiol Groups of DHLA Ligands under Photoirradiation for Synthesis of Au Nanoparticles With Their Catalytic and Peroxidase Like Activity.

In this work, we rationally synthesized quite stable gold nanoparticles (AuNPs) using dihydrolipoic acid (DHLA) and DHLA-aspartame (DHLA-Asptm) as both reducing and stabilizing agents in a mixture of water/ethanol at RT under photoirradiation in 10 min. The novelty of this work is that benefiting from both the oxidation of ethanol to ethanal and having the bidentate thiol groups of DHLA, stable DHLA@AuNPs and DHLA-Asptm@AuNPs were successfully and rapidly formed without additional reducing reagents. We systematically examined the formation of DHLA@AuNPs and DHLA-Asptm@AuNPs under different pH values and reaction temperatures.

Rational design of EDTA-incorporated nanoflowers as novel and effective endodontic disinfection against biofilms.

The ethylenediaminetetradiacetic acid (EDTA) is one of the most commonly used irrigation solutions. Although EDTA has a very low antimicrobial property, it is used to remove inorganic part of smear layer in areas of root canal system. Herein, we developed EDTA-incorporated nanoflowers (EDTA NFs), for the first time, as novel and effective irrigation solution with quite high antimicrobial property to provide complete disinfection in root canal system.

Formation of Umbilicaria decussata (Antarctic and Turkey) Extracts Based Nanoflowers with Their Peroxidase Mimic, Dye Degradation and Antimicrobial Properties.

This work describes a unique and environmentally friendly approach for creating three-dimensional (3D) organic-inorganic flower shaped hybrid nanostructures called "nanoflower (NF)" by using Umbilicaria decussate (U. decussate) extract and copper ions (Cu ). U.

In Situ Synthesis of Horseradish Peroxidase Nanoflower@Carbon Nanotube Hybrid Nanobiocatalysts with Greatly Enhanced Catalytic Activity.

Organic-inorganic hybrid nanoflowers (NFs) consisting of horseradish peroxidase (HRP) and copper II (Cu) are successfully synthesized with the involvement of carbon nanotubes (CNTs) by in situ and post-modification methods. Catalytic activities of in situ synthesized HRP-NF@CNT (HRP-NF@CNT-Is) and post-modification-synthesized HRP-NF@CNTs (HRP-NF@CNT-Pm) are systematically examined. The 30 mg CNTs incorporated HRP-NF@CNT-Is (HRP-NF@CNT-30Is) exhibits greatly increased catalytic activity and stability toward 3,3',5,5'-tetramethylbenzidine (TMB), thanks to the synergistic effect between HRP-NF and CNTs and the peroxidase-like activity of CNTs in the presence of hydrogen peroxide (HO).

Gallic acid nanoflower immobilized membrane with peroxidase-like activity for m-cresol detection.

We report fabrication of new generation nanoflowers (NFs) using gallic acid (GA) and copper (II) ions (Cu) acted as an organic and inorganic component, respectively with effective peroxidase mimic activities in solution and on filter membrane. Unlike the typical protein NFs synthesis mechanism, gallic acid NFs (GA-NFs) was formed via coordination reaction between carboxyl groups of GA and Cu. The different morphologies of the GA-NFs were acquired based upon whether the carboxyl groups in gallic acid are active or not.