Room temperature green synthesis and time resolved kinetics of formation of xanthan gum stabilised silver nanoparticles with catalytic and antibacterial potential.

Well-defined and stable, spherical silver nanoparticles (AgNPs) were synthesized at room temperature by a green approach using xanthan gum (XG) as a reducing and stabilizing agent. The effect of various concentrations of silver nitrate on the formation kinetics of AgNPs at 23 °C and pH 10 was studied. The nanoparticles formation with XG as a reducing agent followed a first-order reaction kinetics.

Effect of thermocycling on flexural strength of dental CAD/CAM ceramics of variable thicknesses and structures: an in vitro study.

Background: This study examined the effect of thermocycling on the flexural strength properties of four CAD/CAM ceramic materials at different thicknesses.

Methods: Four CAD/CAM ceramics of different types: advanced lithium disilicate (ALD), zirconia-reinforced lithium silicate (ZLS) lithium disilicate (LD), and leucite reinforced (LE), and at three varying thicknesses 0.5, 1.

In vitro study on the effect of Halloysite Nanotubes (HNTs) on flexural properties of 3D-printed dental resins after thermal aging.

Purpose: The purpose is to evaluate the effect of adding Halloysite Nanotubes (HNTs) on the flexural strength (FS), elastic modulus, and hardness of 3D-printed denture base resins (DBRs).

Materials And Methods: A total of 160 bar- and disk-shaped specimens were fabricated from 3D-printed resins (DentaBASE-ASIGA and Denture 3D+-NextDent), incorporating three concentrations of HNTs (0.3%-, 0.

Phytotoxicity and growth enhancement properties of magnesium and zinc co-doped aluminum oxide nanoparticles on barley (Hordeum vulgare L.).

Nanotechnology has been utilized in diverse domains, encompassing sustainable agriculture. However, the ecotoxicity and environmental safety of nanoparticles need to be evaluated before their large-scale use. This study synthesizes and characterizes magnesium (Mg) and zinc (Zn) co-doped aluminum (Al) oxide (MgZnAlO) NPs and elucidates its potential growth-promoting or genotoxic performance on barley (Hordeum vulgare L.

Advancing Nanomedicine Through Electron Microscopy: Insights Into Nanoparticle Cellular Interactions and Biomedical Applications.

Nanomedicine has revolutionized cancer treatment by the development of nanoparticles (NPs) that offer targeted therapeutic delivery and reduced side effects. NPs research in nanomedicine significantly focuses on understanding their cellular interactions and intracellular mechanisms. A precise understanding of nanoparticle interactions at the subcellular level is crucial for their effective application in cancer therapy.

Flexural properties of rapidly prototyped denture base materials: the effect of nanoparticle addition and post-curing duration .

Objectives: The flexural strength and elastic modulus of rapidly prototyped denture base materials are affected by numerous factors including reinforcement with nanoparticles (NPs) and post-curing duration (PCD), though the effect of these two factors together has been overlooked. The present study tested the effect of nanodiamonds (NDs) or silicon dioxide nanoparticles (SNPs) with various PCDs on the flexural strength and elastic modulus of rapidly prototyped denture base materials.

Methods: To measure the flexural strength and elastic modulus, bar-shaped specimens (64 × 10 × 3.

comparative thermo-chemical aging and penetration analyses of bioactive glass-based dental resin infiltrates.

Background: Teeth with small to moderate cavities can be repaired with enamel resin infiltrants, a form of dental restorative material. In dental materials, it is standard practice to include several filler particles for experimental use in dental resin infiltrates. The resin's BG particles penetrate the lesion and release ions that combine with saliva to provide a mineral-rich environment that can strengthen enamel and heal.

Flexural properties of additive manufactured resin designated for interim fixed dental prosthesis: Effect of nanoparticles, build direction, and artificial aging.

Objective: This study investigates the flexural strength and elastic modulus of three-dimension (3D) printed interim resin (ASIGA) incorporating zirconium dioxide (nano-ZrO) and silicon dioxide (nano-SiO) nanoparticles (NPs) with different build direction and after artificial aging.

Methods: Three hundred 3D-printed specimens were used for testing. Groups were modified with nano-ZrO or nano-SiO at concentrations of 0.

Correction to "Structural, Magnetic, and Mossbauer Parameters' Evaluation of Sonochemically Synthesized Rare Earth Er and Y Ions-Substituted Manganese-Zinc Nanospinel Ferrites".

[This corrects the article DOI: 10.1021/acsomega.1c03416.

An In Vitro Comparative Analysis of Physico-Mechanical Properties of Commercial and Experimental Bioactive Endodontic Sealers.

This study aimed to evaluate the fracture resistance of root and sealer penetration after obturation using an epoxy resin sealer AH plus (AH+) and two different bioactive endodontic sealers, i.e., Totalfill BC Hiflow (TF BC), and experimental injectable bioactive glass (Exp.

Green synthesis, characterization, morphological diversity, and colorectal cancer cytotoxicity of gold nanoparticles.

The synthesis of gold nanoparticles (AuNPs) green methods is advantageous due to their economic viability, reduced environmental pollution, and safety towards human health. According to our best knowledge, there is limited documented research on synthesizing AuNPs using gum Arabic (GA) and cinnamon (CNM) and studying their anticancer activities against colorectal cancer cells. This study presents a simple approach to synthesizing AuNPs using GA and CNM, characterized by advanced analytical techniques, including UV-Vis and FTIR spectroscopies, SEM, EDS, TEM, SAED, Zeta sizer, and Zeta potential.

Physio-Mechanic and Microscopic Analyses of Bioactive Glass-Based Resin Infiltrants.

This study aimed to investigate the efficacy and durability of bioactive glass-based dental resin infiltrants. Resin infiltrants were formulated by combining photoinitiated dimethacrylate monomers with three variations of bioactive glass: 45S5 Bioglass (RIS), boron-substituted (RIB), fluoride-substituted (RIF), and pure resins (PR), whereby TOOTH group (TH) and ICON (CN) served as commercial control groups. Teeth samples were prepared, and experimental and control infiltrants were applied on demineralized human-extracted teeth.

Evaluation of Mechanical and Elemental Properties of Bioceramic-Coated Orthodontic Brackets and Enamel Surface.

Objective:  The aim is to coat orthodontic brackets with two different bioactive materials and to compare the mechanical and morphological properties of coated brackets and tooth surfaces.

Materials And Methods:  A total of 120 stainless steel brackets were divided equally into three groups, that is, the uncoated brackets and nanohydroxyapatite (nHA)-coated, and nanobioactive glass (nBG)-coated brackets using a spin coater machine. The brackets were bonded on the enamel surface and underwent remineralization/demineralization cycles for days 1, 7, 14, and 30.

Fine-tuning the element dose in nanoparticle synthesis is the critical factor determining nanoparticle's impact on plant growth.

This study elucidates the impact of element dose during nanoparticle (NPs) synthesis on plant growth indices. Novel NPs containing two essential micro-nutrients, zinc (Zn) and manganese (Mn), were co-doped on cerium oxide (CeO) (ZnMnCe) with different ratios (1, 2, and 3%). The synthesized NPs were characterized by advanced analytical techniques (EDX, TEM, SEM, XPS, and XRD) and hydroponically applied to barley (Hordeum vulgare L.

Repair strength of 3D-printed denture base resins: Effect of surface treatment and repair material type.

Purpose: The aim of the study was to investigate the effect of surface treatment and repair materials on the flexural strength of repaired 3D-printed denture base resins after thermal aging.

Materials And Methods: Bar-shape specimens (64 × 10 × 3.3 mm) were designed as intact (control) specimens while repair specimens were printed in sections with 2.

The effect of surface treatment and thermal aging on the bonding of clear aligner attachments to provisional resin-based material: shear bond strength analysis.

Objectives: The aim of this study is to evaluate the effect of different surface treatments on the shear bond strength (SBS) of clear aligner attachments bonded to Bis-acryl provisional crowns.

Methods: 120 cylindrical bisacrylic composite material (ProTemp type) specimens were prepared and divided into six groups ( = 20) based on surface treatment, control: (no treatment); super coarse grit diamond bur, carbide bur, alumina-blasting, non-thermal plasma treatment, and Er:YAG laser treatment. The features of treated surfaces were examined using scanning electron microscopy (SEM).

A Comparative In Vitro Physicochemical Analysis of Resin Infiltrants Doped With Bioactive Glasses.

Objective This study aimed to investigate the longevity and effectiveness of bioactive glass (BAG)-based dental resin infiltrants. Materials and methods The three types of BAG - 45S5 bioglass (RIS), boron-substituted (RIB), and fluoride-substituted (RIF) - were incorporated with photoinitiated dimethacrylate monomers to create experimental resin infiltrants. ICON (CN; DMG-America, Ridgefield Park, NJ) and pure resin (PR) were used as control groups in this study.

Bionanocomposites comprising mesoporous metal organic framework (ZIF-8) phytofabricated with Allium sativum as alternative nanomaterials to combat antimicrobial drug resistance.

Green nanotechnology is one of the most expanding fields that provides numerous novel nanoparticle drug formulations with enhanced bioactivity performance. This study aims to synthesize mesoporous metal organic framework (ZIF-8) phytofabricated with the herb Allium sativum (As) as an indicator system for its antibacterial and antifungal impact. The successful synthesis of ZIF-8 as nanocomposite was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning coupled with energy-dispersive X-ray spectroscopy and transmission electron microscopy (SEM-EDX and TEM) that showed the textural retainment of ZIF-8 on composite formation with A.

Synergistic effect of Silver-Nanodiamond composite as an efficient antibacterial agent against and .

Bacterial antimicrobial resistance (BAMR) seems to pose the greatest threat to public health, food safety, and agriculture in this century. The development of novel efficient antimicrobial agents to combat bacterial infections has become a global issue. Silver nanoparticles (Ag NPs) appeared as a feasible alternative to antibiotics.

Zeolitic Imidazole Framework/Silica Nanocomposite for Targeted Cancer Therapeutics: Comparative Study of Chemo-Drug Cisplatin (CPt) and Green Platinum (GPt) Efficacy.

A chemo-drug such as cisplatin is effective for cancer treatment but remains non-specific, is susceptible to drug resistance, and induces several side effects on organ systems. Zeolitic imidazolate framework-8, a type of MOF, has gained attention, including as a drug delivery method for targeted cancer therapeutics. In this study, ZIF-8/Silica nanocomposite was synthesized using a one-pot hydrothermal technique using the Stober technique.

Uptake and bioaccumulation of iron oxide nanoparticles (FeO) in barley (Hordeum vulgare L.): effect of particle-size.

Root-to-shoot translocation of nanoparticles (NPs) is a matter of interest due to their possible unprecedented effects on biota. Properties of NPs, such as structure, surface charge or coating, and size, determine their uptake by cells. This study investigates the size effect of iron oxide (FeO) NPs on plant uptake, translocation, and physiology.

Flexural strength of 3D-printed nanocomposite provisional resins: Impact of SiO and ZrO nanoparticles and printing orientations in vitro.

Purpose: The aim of this study was to investigate and compare the influence of zirconium dioxide nanoparticles (ZrONPs) and silicon dioxide nanoparticles (SiONPs) addition and printing orientation on the flexural strength (FS) of provisional three-dimensional (3D) printing resins undergoing thermal cycling (TC).

Methods: Three dimensional-printed resin (NextDent C&B MFH) was used to fabricate 300 bar-shaped specimens (25 × 2 × 2 mm). The ZrONPs and SiONPs specimens were divided into two groups, then subdivided into three groups, based on the nanoparticle concentration (i.