Zainiharyati Mohd. Zain

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D-serine has been implicated as a brain messenger, promoting not only neuronal signalling but also synaptic plasticity. Thus, a sensitive tool for D-serine monitoring in brain is required to understand the mechanisms of D-serine release from glia cells. A biosensor for direct fixed potential amperometric monitoring of D-serine incorporating mammalian(More)
Pt electrodes of different sizes (2 x 10(-5)-2 x 10(-2) cm(2)) and geometries (disks and cylinders) were coated with the ultrathin non-conducting form of poly(o-phenylenediamine), PPD, using amperometric electrosynthesis. Analysis of the ascorbic acid (AA) and H(2)O(2) apparent permeabilities for these Pt/PPD sensors revealed that the PPD deposited near the(More)
An automated iodometric assay, a potential analytical tool for general applications in various quality control and analytical laboratories, was extended for the determination of iodine reactive components in pharmaceutical formulations such as benzylpenicillin. The method was developed based on flow injection analysis (FIA) that utilizes a triiodide(More)
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