A novel molecular imprinting polymer for the selective adsorption of D-arabinitol from spiked urine

Authors : Yuni Retnaningtyas, Ganden Supriyanto, Ni Nyoman Tri Puspaningsih, Roedi Irawan, Siswandono Siswodihardjo

Pages : 1265-1277

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Publication Date : 9999-12-31

Article Type : Makaleler

Abstract :In this research, molecular imprinting polymers (MIPs) for D-arabinitol were synthesized using a bulk polymerization method through a noncovalent approach. The MIPs were prepared by using D-arabinitol as a template, acrylamide as a functional monomer, ethylene glycol dimethacrylateas cross-linker, benzoyl peroxide as an initiator and dimethyl sulfoxideas a porogen. MIPS was synthesized in several formulas with a different molar ratio of template to functional monomers and cross-linker. Fourier-transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) were used to characterize the MIPs produced. A batch rebinding assay was used to test the binding efficiency of each formula. Batch rebinding test results revealed that MIPsF3 with a molar ratio of the template: monomer and cross-linker ratio respectively (1: 4: 25) had the highest binding capacity at 1.56 mgg(-1). The results of isotherm adsorption showed that the MIPs produced followed the Freundlich equation with an R-value of 0.97. The MIPs produced was also selective toward its isomeric compounds (i.e. L-arabinitol, adonitol, xylitol, and glucose). The extraction efficiency of the MIPs against D-arabinitol was 88.98%.
Keywords : MIPs, D-arabinitol, bulk polymerization, noncovalent, selective adsorption