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9 Result(s)

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  1. No Access

    Article

    Reduction of Benzaldehyde Catalyzed by Papain-Based Semisynthetic Enzymes

    Some features of native enzyme’s active site were used to conjunction with a chemical reagent or modifying group, which would generate new functionality different from the natural enzyme. In order to obtain an...

    Chun-xiang Chen, Bo Jiang, E. A. Carrey… in Applied Biochemistry and Biotechnology (2010)

  2. No Access

    Article

    Multicomponent Amorphous Nanofibers Electrospun from Hot Aqueous Solutions of a Poorly Soluble Drug

    To design and fabricate multicomponent amorphous electrospun nanofibers for synergistically improving the dissolution rate and permeation profiles of poorly water-soluble drugs.

    Deng-Guang Yu, Li-Dong Gao, Kenneth White… in Pharmaceutical Research (2010)

  3. No Access

    Article

    Kinetic Evaluation of Aminoethylisothiourea on Mushroom Tyrosinase Activity

    This study demonstrates that aminoethylisothiourea (AET), a potent inhibitor of inducible nitric oxide synthase, is an irreversible competitive inhibitor of mushroom tyrosinase by chelation to the active site ...

    Shu-Bai Li, Hua-Li Nie, Hai-Tao Zhang, Yong Xue… in Applied Biochemistry and Biotechnology (2010)

  4. No Access

    Article

    Dissolution Improvement of Electrospun Nanofiber-Based Solid Dispersions for Acetaminophen

    The objective of the present investigation was to prepare novel solid dispersions (SDs) of poorly water-soluble drugs with special microstructural characteristics using electrospinning process. With the hydrop...

    Deng-Guang Yu, Christopher Branford-White, Kenneth White, Xue-Lian Li… in AAPS PharmSciTech (2010)

  5. No Access

    Article

    In Vitro Effect of Ozagrel on Mushroom Tyrosinase

    This investigation, in vitro, shows that ozagrel, an antithrombotic drug, inhibited both monophenolase and diphenolase activities of mushroom tyrosinase when l-tyrosine and l-DOPA were assayed spectrophotometrica...

    Shu-Bai Li, Yong Xue, **n-Yu Lv, Hua-Li Nie, Li-Min Zhu… in The Protein Journal (2009)

  6. No Access

    Article

    The purification and characterization of deoxycytidine kinase from calf thymus

    A facile and fast approach for the purification of deoxycytidine kinase (dCK) from calf thymus was developed using a fast performance liquid chromatography system. A 73-fold enrichment of the enzyme was noted ...

    **g Quan, Yan-Qian Chai… in World Journal of Microbiology and Biotechn… (2009)

  7. No Access

    Article

    Lipase-catalyzed transesterification of soybean oil for biodiesel production in tert-amyl alcohol

    Lipase-catalyzed transesterification of soybean oil and methanol for biodiesel production in tert-amyl alcohol was investigated. The effects of different organic medium, molar ratio of substrate, reaction tempera...

    Yan Zheng, **g Quan, **n Ning, Li-Min Zhu… in World Journal of Microbiology and Biotechn… (2009)

  8. No Access

    Article

    Enantioselective reductive amination of α-keto acids by papain-based semisynthetic enzyme

    Alkylation of a cysteine residue in papain with a pyridoxamine (PX) cofactor was carried out. The resulting semisynthetic enzyme (papain-PX) has no detectable protease activity but has the ability to catalyze ...

    Chun-**ang Chen, Bo Jiang, C. Branford-White, Li-Min Zhu in Biochemistry (Moscow) (2009)

  9. No Access

    Article

    Epoxypropane biosynthesis by Methylomonas sp. GYJ3: batch and continuous studies

    Methylomonas sp. GYJ3 is a methanotrophic bacterium containing methane monooxygenase (MMO), which catalyses the epoxidation of propene to epoxypropane. In this study, the cell suspension of Methylomonas sp. GYJ3...

    Jia-Ying **n, Jun-Ru Cui, Li-Min Zhu… in World Journal of Microbiology and Biotechn… (2002)