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COMMON FIXED POINT THEOREMS FOR L-FUZZY MAPPINGS IN b-METRIC SPACES
Javid Ali,M.A. Ahmed,H.A. Nafadi 한국전산응용수학회 2017 Journal of applied mathematics & informatics Vol.35 No.3
In this paper, we prove common fixed point theorems for Lfuzzy mappings under implicit relation in b-metric spaces. Further, results obtained for an integral type contractive condition. These theorems generalize and improve previous corresponding results.
COMMON FIXED POINT THEOREMS FOR L-FUZZY MAPPINGS IN b-METRIC SPACES
ALI, JAVID,AHMED, M.A.,NAFADI, H.A. The Korean Society for Computational and Applied M 2017 Journal of applied mathematics & informatics Vol.35 No.3
In this paper, we prove common fixed point theorems for $\mathcal{L}$-fuzzy mappings under implicit relation in b-metric spaces. Further, results obtained for an integral type contractive condition. These theorems generalize and improve previous corresponding results.
( Saad A. M. Alamri ),( Mohamed Hashem ),( Nivien A. Nafady ),( Mahmoud A. Sayed ),( Ali M. Alshehri ),( Gamal A. El-shaboury ) 한국미생물생명공학회(구 한국산업미생물학회) 2018 Journal of microbiology and biotechnology Vol.28 No.6
Intracellular synthesis of silver/silver chloride nanoparticles (Ag/AgCl-NPs) using Meyerozyma guilliermondii KX008616 is reported under aerobic and anaerobic conditions for the first time. The biogenic synthesis of Ag-NP types has been proposed as an easy and cost-effective alternative for various biomedical applications. The interaction of nanoparticles with ethanol production was mentioned. The purified biogenic Ag/AgCl-nanoparticles were characterized by different spectroscopic and microscopic approaches. The purified nanoparticles exhibited a surface plasmon resonance band at 419 and 415 nm, confirming the formation of Ag/AgCl-NPs under aerobic and anaerobic conditions, respectively. The planes of the cubic crystalline phase of the Ag/AgCl-NPs were confirmed by X-ray diffraction. Fourier-transform infrared spectra showed the interactions between the yeast cell constituents and silver ions to form the biogenic Ag/AgCl-NPs. The intracellular Ag/AgCl-NPs synthesized under aerobic condition were homogenous and spherical in shape, with an approximate particle size of 2.5-30nm as denoted by the transmission electron microscopy (TEM). The reaction mixture was optimized by varying reaction parameters, including temperature and pH. Analysis of ultrathin sections of yeast cells by TEM indicated that the biogenic nanoparticles were formed as clusters, known as nanoaggregates, in the cytoplasm or in the inner and outer regions of the cell wall. The study recommends using the biomass of yeast that is used in industrial or fermentation purposes to produce Ag/AgCl-NPs as associated by-products to maximize benefit and to reduce the production cost.
Mohamed Rehan,Mehrez E. El-Naggar,Abdullah M. Al-Enizi,Asma A. Alothman,Ayman Nafady,Reda M. Abdelhameed 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.97 No.-
In this study, to impart silkfibers with excellent coloration, UV-protection, antimicrobial activity, as wellas creatinine adsorption from artificial blood, silkfibers were designed via facile fabrication approach. These diverse properties were introduced by in-situ incorporation of nanoparticles based on either silver(AgNPs) or gold (AuNPs) as well as bimetallic (Ag-AuNPs) onto silkfibers using an eco-friendly, effectiveone-pot process. The proteins present in the silkfibers acted as a redox-active bio-template to reduce theAg(I) and Au(III) ions to their zero-valent state with simultaneous deposition of the generatednanoparticles onto the silkfiber surfaces. The obtained results clearly indicated that both AgNPs andAuNPs colored the silkfibers with brown and red color, respectively, thereby affirming the deposition ofthese metallic NPs onto and inside the surface of silkfibers as S/Ag-AuNPs. Significantly, the preparedcolored silkfibers exhibited excellent antimicrobial and cytotoxicity activities against differentpathogenic microbes as well as very good UV protection properties. Moreover, the results attestedthat the as prepared S/AgNPs and S/AuNPsfibers have good adsorption potential with maximaladsorption capacity of creatinine in artificial blood was found to be 94.2 mg/g for S/AuNPs sample, whichis 1.55 times greater than that of silkfibers.