Abstract
Metformin hydrochloride is an anti-hyperglycaemic drug that is widely prescribed in the management of noninsulin diabetes mellitus (NIDDM). However, metformin does not undergo complete metabolism in the body thereby excreting significant amount through urine and eventual discharged into the water bodies. Therefore, this work investigates the possibility bio-sorption of metformin by Fucus spiralis seaweed. High performance liquid chromatography (HPLC) and FITR was used for quantifying metformin biosorption. The result shows that Fucus spiralis is a potential biosbent for metformin removal in aqueous solution. The highest removal was up to 74% at 50 µg/mL. It can be mentioned here that this study is the first of it kind in testing seaweed for metformin biosorption.
 In conclusion, biomass (Fucus spiralis) was tested for its efficiency in metformin removal in aqueous solution. Adsorption studies revealed that F. spiralis can be used as potential adsorbent for metformin uptake. Very limited literature investigates the application of seaweeds species for pharmaceutical remediation. Remediation of waste and surface water using readily available adsorbent such as seaweed will be useful as it relates to human health and environmental contamination. HPLC was used in this study but other spectroscopic technique such as UV/vis could be explored to ascertain the optimized method. Further studies would be needed to test other algal species for metformin bio sorption.
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