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  1. Article

    Open Access

    Biophotonic sensor for swift detection of malignant brain tissues by using nanocomposite YBa2Cu3O7/dielectric material as a 1D defective photonic crystal

    In the present research work we have theoretically examined the biosensing capabilities of proposed one dimensional defective photonic crystal for swift detection of malignant brain tissues. The transfer matri...

    C. Malek, Suhad Ali Osman Abdallah, S. K. Awasthi, M. A. Ismail… in Scientific Reports (2023)

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  2. No Access

    Article

    High performance biosensor composed of 1D defective photonic crystal for sensing and detection of distinguished blood components

    In the present research work, one-dimensional defective photonic structure based blood sensor is worked out proposed for accurate sensing and detection of the ten most important components of human blood like ...

    C. Malek, M. Al-Dossari, S. K. Awasthi, M. A. Ismail… in Optical and Quantum Electronics (2023)

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    Chapter

    Microbial Cell Factories for Diol Production

    Diols are compounds with two hydroxyl groups and have a wide range of appealing applications as chemicals and fuels. In particular, five low molecular diol compounds, namely 1,3-propanediol (1,3-PDO), 1,2-prop...

    W. Sabra, C. Groeger, An-** Zeng in Bioreactor Engineering Research and Indust… (2016)

  4. No Access

    Article

    Comparative physiological study of the wild type and the small colony variant of Pseudomonas aeruginosa 20265 under controlled growth conditions

    Small-colony variants (SCVs) of Pseudomonas aeruginosa are often found in chronically infected airways of patients suffering from cystic fibrosis. These slow-growing morphological variants have been associated wi...

    W. Sabra, A. M. Haddad, A.-P. Zeng in World Journal of Microbiology and Biotechnology (2014)

  5. No Access

    Article

    Substrate-limited co-culture for efficient production of propionic acid from flour hydrolysate

    Propionic acid is presently mainly produced by chemical synthesis. For many applications, especially in feed and food industries, a fermentative production of propionic acid from cheap and renewable resources ...

    W. Sabra, D. Dietz, A. P. Zeng in Applied Microbiology and Biotechnology (2013)

  6. No Access

    Article

    Evaluation of a new method for antifungal susceptibility testing for azoles

    The interpretation of the end points in azole antifungal drug susceptibility testing is challenging, in part due to incomplete growth inhibition of Candida species. Since the reference Clinical and Laboratory ...

    W. Sabra, A. F. Tawfik, A. M. Shibl in World Journal of Microbiology and Biotechnology (2010)

  7. No Access

    Article

    Bacterial alginate: physiology, product quality and process aspects

    Alginate, a copolymer of β-D-mannuronic acid and α-L-guluronic acid and currently commercially produced from the marine brown algae, can also be biologically produced by bacteria such as Azotobacter vinelandii,

    W. Sabra, A.-P. Zeng, W.-D. Deckwer in Applied Microbiology and Biotechnology (2001)

  8. No Access

    Article

    Effect of phosphate and oxygen concentrations on alginate production and stoichiometry of metabolism of Azotobacter vinelandii under microaerobic conditions

    Alginate production by Azotobacter vinelandii was studied in batch and continuous cultures under microaerobic conditions. In batch culture at a pO2 of 2–3% (air saturation) alginate production was enhanced by de...

    W. Sabra, A. -P. Zeng, S. Sabry, S. Omar… in Applied Microbiology and Biotechnology (1999)