A glassy carbon electrode (GCE) modified with reduced graphene oxide (RGO) and silver oxide nanoparticles (AgNPs-RGO/GCE) was prepared for electrocatalytic oxidation of amino acids. The modified electrode surface was characterized by scanning electron microscopy, energy dispersive X-ray spectros...
Silver oxide nanoparticles are wonderful material and having great potential towards biomedical applications. Silver oxide nanoparticle were synthesized via Chemical Aqueous method and characterized by applying manifold available techniques. X-ray diffraction (XRD) was used for analyzing structu...
ObjectivesThis study aimed to evaluate whether coating tooth surfaces with sodium fluoride (NaF) or silver diamine fluoride (SDF) inhibits bacteria-induced pH reductions at the bacteria/tooth interface.
BackgroundSilver diamine fluoride (SDF) is used topically to prevent or arrest caries. The authors' aim was to characterize the kinetics of silver and fluoride after topical application of SDF.
ObjectiveTo evaluate the remineralising effect of the adjunctive application of 38% silver diamine fluoride (SDF) solution and 5% sodium fluoride (NaF) varnish on artificial enamel caries lesions.
BackgroundAs silver diamine fluoride (SDF) gains popularity for caries arrest, the authors aimed to investigate the content of fluoride and silver in 38% SDF produced for the US market and its short-term stability.
The structure (2) of roridin L-2 is shown to be a C29-trichothecene that lacks the macrocyclic lactone system usually present in the roridins.
Roridin A (1) and verrucarin A (2), inhibitors of pollen development in Arabidopsis thaliana, have been isolated from the fungus Cylindrocarpon sp. They inhibited the pollen development at concentrations of 2 and 20 μM, respectively. The microscopic examination of pollen development suggested t...
Roridin E is a well-known macrocyclic trichothecene mycotoxin possessing potent antiproliferative activity against cancer cell lines. 12’-Hydroxyroridin E was isolated from a marine-derived fungus, Myrothecium roridum 98F42. The cytotoxicities of these two compounds were tested against human mo...
The widespread use of synthetic nematicides has caused significant problems to the environment as well as human health. To address this issue, eco-friendly control measures, such as microbial nematicides, are being developed. During the screening of Myrothecium strains with nematicidal activity ...
The (2′Z)-configuration of roridin J (1) was revised to the (2′E) form by conducting NOE experiments. Although the configurations with respect to the stereogenic carbons on the macrocyclic ring of 1 had remained unknown, a combination of NMR analysis and molecular modeling calculations reveale...
We examined the effects of exogenous dopamine on gill (Na+, K+)-ATPase activity in vitro in microsomal preparations from juvenile or adult freshwater shrimp, Macrobrachium amazonicum. Dopamine had no effect on enzyme activity in juveniles but stimulated activity in adult shrimp gills by ≈35%. S...
A series of K promoted K/MgFeAl-HTLcs catalysts with different Mg/Fe/Al molar ratios were prepared by means of coprecipitation and impregnation method for direct synthesis of light olefins from CO hydrogenation. The samples were characterized by XRD, N2 adsorption-desorption, SEM, TG, H2-TPR and...
BackgroundMinor saponins or human intestinal bacterial metabolites, such as ginsenosides Rg3, F2, Rh2, and compound K, are more pharmacologically active than major saponins, such as ginsenosides Rb1, Rb2, and Rc. In this work, enzymatic hydrolysis of ginsenoside Rb1 was studied using enzyme prep...
Compound K is a type of protopanaxadiol-type ginsenosides (PPDs) that has strong bioactivities due to fewer glycosyls. However, compound K is not present in raw and unprocessed ginseng. Some PPDs have the same structure with gypenosides, and could be obtained from Gynostemma pentaphyllum. The en...
Methicillin-resistant Staphylococcus aureus (MRSA) is one of the prevalent pathogens, causing various diseases in humans and farm animals. Phage therapy is a potential mean to control the MRSA as an alternative to antibiotics. The objective of this paper was to develop a dry powder phage K prepa...
IntroductionThe preparation of a glide path before the introduction of rotary nickel-titanium instruments is a standard adjunct to ensure increased safety during root canal preparation. The aim of this study was to compare the mean preparation time of manual instrumentation with K-files, G-Files...
Potassium promoted iron–zinc catalysts prepared by co-precipitation method (C–Fe–Zn/K), solvothermal method (S–Fe–Zn/K) and hydrothermal method (H–Fe–Zn/K) could selectively convert CO2 to light olefins, respectively. The physicochemical properties of the obtained catalysts were determine...
Novel Mn4+-activated red light-emitting phosphors, A2NaInF6:Mn4+ (A = K and NH4), have been designed and obtained through co-precipitation method. The phase identification, morphology and composition have been systematically investigated via X-ray diffraction (XRD), scanning electron microscopy ...
A high-yield and facile approach for producing K-birnessite layered nanoflake was proposed via simply mixing and hydrothermally heating the mixture of potassium oxalate and potassium permanganate aqueous solution. The product yield was proved to be significantly increased with the addition of po...
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