Voltammetric determination of metformin and its derivatives using Cu modified polymer electrode.
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Diabetes, a worldwide disease, is classified into two types, type 1 or insulin-dependent and type 2 or noninsulin-dependent. Based on reports published by the International Diabetes Federation, the total number of those suffering from diabetes is growing every year. Statistics predict that type 2 diabetes, currently affecting about 8% of the adult population, would spread at such a pace that by 2030, more than 40 million cases of diabetes would be found throughout the world. On the other hand, studies revealed that patients with type 2 diabetes mellitus (T2DM) have a lower incidence of tumour development than healthy controls and that patients diagnosed with cancer have a lower risk of mortality when treated with metformin. However, the frequent use of metformin with low oral bioavailability ranging between 40-60% in the intestinal environment leads to large accumulation on the enterocytes.