Formulation of promising antibacterial, anticancer, biocompatible and bioactive biomaterial as therapeutic drug delivery system for biologically active compound loaded on clay polymer

Abstract

The synthesized heterocyclic compound: 5-[4-bromobenzylidene amino)-1, 3, 4-thiadiazole-2-thiol abbreviated as BATT possessed good antibacterial activity for various Gram-negative and Gram-positive bacteria. In addition to potent antitumor activity to breast cancer, for the first time, the novelty of this study is facile low-cost formulation of safe antitumor drug delivery system (DDS) for breast cancer from such simple heterocyclic compound. Heterocyclic compound is efficiently and spontaneously incorporated into MMT clay polymer matrix forming novel therapeutic nanocomposite DDS for breast cancer. BATT successfully intercalates MMT clay polymer matrix. Electron donation ability of nanocomposites is confirmed by cyclic voltammetry in terms of small peak-to-peak redox potential Δ Epeak. Adsorption of BATT on clay is carried out by batch adsorption method. Better adsorption strength at low pH 2 decreased with increasing pH. Adsorption data are analyzed by multiple mathematical models. MMT clay is an efficient carrier polymer heterogonous adsorbent for BATT at optimum conditions: contact time 2.0 h, pH 2 and initial concentration up to 1200 ppm. Adsorption rate constant, k2 equals 14.6 × 10–3 and qe 19 mg g−1 (R2 0.999). pH of zero charge of MMT at pH 3 reflected adsorption mechanism of MMT. At pH 2, BATT is loaded on MMT by physi- and chemisorption. At pH 4, BATT is loaded on MMT by chemisorption.