نتایج جستجو برای: green capping agent
تعداد نتایج: 395248 فیلتر نتایج به سال:
Abstract Zinc sulfide (ZnS) nanoparticles are produced in this study utilizing a simple wet‐chemical precipitation procedure using polyethylene glycol (PEG) as capping agent. To analyze the structural, morphological, electrical, and electronic properties of material, ZnS nano powder is studied X‐ray diffraction (XRD), scanning electron microscopy (SEM), FTIR, UV–visible absorption spectroscopy,...
BACKGROUND Permanent teeth pulp exposures have traditionally been treated with calcium hydroxide pulp capping. The aim of this study was to investigate the response of human pulp tissue which were mechanically exposed to a new material, Propolis and compare it with two existing and commonly used pulp capping agents (mineral trioxide aggregate and Dycal). METHODS Thirty-six intact human premol...
Chitosan coated iron nanoparticles were synthesized by co-precipitation method and also Nanoparticles evaluate the effect of surface coating on stability toxicity nanoparticles. FTIR amino groups acted as a capping site for Iron stabilization. Invitro cytotoxicity is dependent dose-based their reduction was observed in SKMEL cancer cells administered with different concentration samples. I50 va...
objective: bioactive glass is often used as a filler material for repair of dental bone defects. in different studies osteogenic potential of this material was proved, but its dentinogenesis property is in doubt. the purpose of this study was to evaluate the histological pulp responses of calcium hydroxide and bioactive glass placed directly on exposed pulp tissues. materials and methods: twent...
The green synthesis of metal oxide nanoparticles is an efficient, simple, and chemical-free method producing nanoparticles. present work reports the Murraya koenigii-mediated ZrO2 (ZrO2 NPs) their applications as a photocatalyst antibacterial agent. Capping stabilization were achieved by using koenigii leaf extract. optical, structural, morphological valance NPs characterized UV-DRS, FTIR, XRD,...
• Spindle shaped PbWO 4 nanostructure with enhanced photocatalytic activity was obtained by facile and green sonochemical way for the first time. Maltose as a new capping agent utilized. Sonication time, dose of precursors, power ultrasound waves kind were optimized. The made lead tungstate samples in role visible-light photocatalyst applied to remove organic pollution water. Usage ultrasonic i...
correspondence: Magdalena Stevanović Institute of Technical Sciences of Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, 11000 Belgrade, Serbia Tel +38 11 1263 6994 Fax +38 11 1218 5263 email [email protected] Abstract: Highly stable dispersions of nanosized silver particles were synthesized using a straightforward, cost-effective, and ecofriendly method. Nontoxic g...
BACKGROUND Silver nanoparticles (AgNPs) can be easily obtained in aqueous solution by chemical reduction using appropriate reducing agents and stabilizers. The development of environmentally friendly methods non-toxic solvents reagents has become an alternative for the synthesis these particles their future application as sensor probes agricultural products. In this work, a straightforward meth...
Highly stable dispersions of nanosized silver particles were synthesized using a straightforward, cost-effective, and ecofriendly method. Nontoxic glucose was utilized as a reducing agent and poly-α, γ, L-glutamic acid (PGA), a naturally occurring anionic polymer, was used as a capping agent to protect the silver nanoparticles from agglomeration and render them biocompatible. Use of ammonia dur...
OBJECTIVE To investigate the impact of tracheostomy tube capping on swallowing physiology in stroke patients with dysphagia via videofluoroscopic swallowing study (VFSS). METHODS This study was conducted as a prospective study that involved 30 stroke patients. Then, 4 mL semisolid swallowing was conducted with capping of the tracheostomy tube or without capping of the tracheostomy tube. The f...
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