Bacillus subtilis has been widely used for extracellular production of native and homologous proteins. Based on the use of a synthetic expression/secretion cassette, a new bacterial expression system is developed and may be applied to produce heterologous proteins efficiently as secreted products. .....
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Existing methods for detection of pathogens at ultra-low concentration are usually time-consuming. This is mainly due to the lack of general and satisfactory assay that could detect bacteria at concentrations A protocol is now invented, making detection of Gram-positive and Gram-negative bacteria w.....
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A new bistable liquid crystal display (LCD) is invented. It has many advantages over existing bistable LCDs, such as low voltage operation, permanent bistability, and fast switching. It can be used in smart cards and in low power applications. LCDs that are truly bistable under zero voltage bias a.....
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There are many applications for the Liquid crystal displays (LCD) that are bistable under zero voltage bias conditions. For examples, bistable cholesteric LCD; bistable ferroelectric LCD; bistable twisted nematic LCD where the two stable twist states differ by 360 degrees in twist angle; bistable tw.....
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A new class of bistable twisted nematic (BTN) displays is invented. Unlike the conventional BTN displays that only have zero twist or -90º twist, this new series of BTN displays can have many different twist angles. By controlling the conditions of the twist angles and the retardation of liqu.....
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