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  • Open Access


    Performance Evaluation of Composite Electrolyte with GQD for All-Solid-State Lithium Batteries

    Sung Won Hwang, Dae-Ki Hong*

    CMC-Computers, Materials & Continua, Vol.74, No.1, pp. 55-66, 2023, DOI:10.32604/cmc.2023.028845

    Abstract The use a stabilized lithium structure as cathode material for batteries could be a fundamental alternative in the development of next-generation energy storage devices. However, the lithium structure severely limits battery life causes safety concerns due to the growth of lithium (Li) dendrites during rapid charge/discharge cycles. Solid electrolytes, which are used in high-density energy storage devices and avoid the instability of liquid electrolytes, can be a promising alternative for next-generation batteries. Nevertheless, poor lithium ion conductivity and structural defects at room temperature have been pointed out as limitations. In this study, through the application of a low-dimensional graphene quantum… More >

  • Open Access


    Nanoparticles induce the biosynthesis and activity of the new possible therapeutic proteinase source, Talaromyces purpureogenus KJ584844


    BIOCELL, Vol.45, No.1, pp. 119-127, 2021, DOI:10.32604/biocell.2021.012011

    Abstract The need for the bacterial proteinase is rapidly growing, urging to catch a lowcost medium for the microbial fermentation, nanoparticles can play a vital role in this respect. The proteinase of Talaromyces purpureogenus was produced on the tubers of Helianthus tuberosus that also operated as solid support for the fermentation process. The interface amongst nitrogen sources (NH4Cl and yeast extract) was investigated, applying the statistical modeling of central composite design under solid-state fermentation. The optimum medium for proteinase secretion was stimulated by 979.82 mg NH4Cl and 437.68 mg yeast extract per 100 g substrate, yielding 108.15 U/g tubers. Using Plackett-Burman… More >

  • Open Access


    Fungal assembly of L-asparaginase using solid-state fermentation: a review


    BIOCELL, Vol.44, No.2, pp. 147-155, 2020, DOI:10.32604/biocell.2020.09522

    Abstract Because of its antitumor therapeutic-activity, as well as its application in food industries to improve the quality, L-asparaginase has attracted considerable attention from several investigators. In recent years, fungi have occupied advanced rank among microorganisms in the production process of the enzyme. This review is spotting the light on the advantages of fungal enzyme and its applications in the food industry and medications. The solid-state fermentation was discussed as the wide alternative and most accepted biosynthesis technique. However, some lights were also spotted to the statistical experimental design of the fermentation process, mainly on the methodology of the response surface… More >

  • Open Access


    Structural Refinement of Titanium-Aluminum-Niobium Alloy for Biomedical Applications

    Joaquín E. González-Hernández1, Jorge M. Cubero-Sesin1,2*, Elena Ulate-Kolitsky1, Priscilla Navarro1, Stephen Petretti1, Zenji Horita3,4

    Journal of Renewable Materials, Vol.5, No.3-4, pp. 300-306, 2017, DOI:10.7569/JRM.2017.634120

    Abstract In this work, a modification of the microstructure of a commercial Ti-6Al-7Nb alloy was accomplished by high-pressure torsion (HPT) at room temperature, to produce a bulk nanostructure on discs of 10 mm diameter and ~0.8 mm thickness. The metallographic analyses of the discs were performed by optical microscopy and scanning electron microscopy with energy dispersive spectroscopy. The results confirmed the presence of aluminum (Al) and niobium (Nb) as the sole alloying elements, promoting a duplex (α + β) titanium (Ti) microstructure prior to HPT processing. After HPT processing, nanostructure refinement was attained, reflected in the X-ray diffraction profiles as broadening… More >

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