نتایج جستجو برای: florescence
تعداد نتایج: 299 فیلتر نتایج به سال:
Papyriflavonol A (PapA), a prenylated flavonoid (5,7,3',4'-tetrahydroxy-6,5'-di-(r,r-dimethylallyl)-flavonol), was isolated from the root barks of Broussonetia papyriferra. Our previous study showed that PapA has a broad-spectrum antimicrobial activity against pathogenic bacteria and fungi. In this study, the mode of action of PapA against Candida albicans was investigated to evaluate PapA as a...
The surface parameter of nanoparticles such as hydrophobicity and a hydrophilicity on protein structure and function is very important. In this study, conformational changes of glucose oxidase (GOx) in the mercaptopurine: GNPs and 11-mercaptoundecanoic acid: GNPs as a hydrophobic and a hydrophilic GNPs surface was investigated by various spectroscopic techniques, including: UV-Vis absorption, f...
Abstract Simultaneous OH-PLIF and Mie scatter imaging were used to investigate turbulent premixed flame edge detection under a range of turbulence characteristics on stabilised piloted Bunsen burner. A 527 nm wavelength laser beam is generate scattering sheet at 500 Hz, 283 created using 355 pump an optical parametric oscillator induce florescence from OH radicals 5 Hz. phase-locking technique ...
OBJECTIVES The purpose of this study is to explore how osteopathy treatments influence certain measurable aspects of the human biofield; namely, various calculated parameters of finger corona discharge patterns produced by high-voltage electrophotography. METHODS The Gas Discharge Visualization camera was used to assess subjects before and after osteopathy treatment. Thirty-three (33) apparen...
Detection and elimination of Bacillus spp. spores is a challenging task being faced by food industry and human life. Spore eradication techniques such as U.V., heat and other stress treatments fails due to dormant and robust nature of spores. Exposure of spores to specific germinants trigger germination and vegetative cells are formed which are metabolically very active and fragile so can be ea...
Purpose: To investigate the anticancer activity of scopoletin against human prostate cancer. Methods: The anticancer activity of scopoletin was evaluated by 3-(4, 5-dimethylthiazol-2-yl)-2, 5diphenyltetrazolium bromide (MMT) assay. Flow cytometry using propidium iodide and annexin V-FITC was employed to study apoptosis and cell cycle analysis. Hoechst 33258 staining was used to assess the effec...
Recaldent is a product of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP). The remineralizing potential of CPP-ACP per se, or when combined with 0.22% Fl gel on artificially demineralized enamel using laser florescence, is investigated. Mesial surfaces of 15 sound human molars are tested using a He-Cd laser beam at 441.5 nm with 18-mW power as an excitation source on a suitable setu...
BACKGROUND Silver and photothermal therapy (PTT) have been widely used for eradicating the drug-resistant bacteria. However, the risks of excess of silver for humans and the low efficiency of PTT still limit their in vivo therapeutic application. Integration of two distinctive bactericides into one entity is a promising platform to improve the efficiency of antimicrobial agents. RESULTS In th...
Pb2+ is considered to be a very toxic pollutant in the aquatic environmental media. Biopolymeric chitosan synthesized from snail shell has been studied for its potential to remove heavy metals from aqueous solution. The experiments were conducted in the range of 1-50 mg/L initial Pb2+ concentration at 298 K. The effects of pH, adsorbent dosage and contact time on the adsorptive property of the ...
The complex phenomenon of decline in European oak is currently triggered by changing climatic conditions and their consequences like heavy rains, local floods and pest development. Especially, pathogens from Phytophthora genus profit from soil saturation with water. They are alien invasive species, which attack and severely damage fine roots. In drought conditions occurring in the subsequent ye...
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