Synthesis and characterization of oxytetracycline imprinted magnetic polymer for application in food

• Published in: Applied nanoscience 2016-02, Vol.6 (2), p.209-214
• Main Authors: Aggarwal, Sneha, Rajput, Yudhishthir Singh, Singh, Gulab, Sharma, Rajan
• Format: Article
• Language: English
• Subjects: Acetonitrile; Buffers; Chemistry and Materials Science; Imprinted polymers; Materials Science; Membrane Biology; Methyl alcohol; Nanochemistry; Nanotechnology; Nanotechnology and Microengineering; Original Article; Oxytetracycline; Polymerization; Selectivity
• ISSN: 2190-5509; 2190-5517
• DOI: 10.1007/s13204-015-0437-3

Magnetic imprinted polymer was prepared by polymerization of methacrylate and ethyleneglycoldimethacrylate in the presence of oxytetracycline on the surface of iron magnetite. Selectivity of prepared polymer was calculated from ratio of partition coefficient of oxytetracycline for imprinted and non- imprinted polymer in water, acetonitrile, methanol and at different pH in aqueous buffer. pH of solvent exhibited pronounced effect on selectivity. Selectivity at pH 7.0, 6.0 and 5.0 was 36.0, 2.25 and 1.61 fold higher than at pH 4.0. Imprinted polymer was not selective for oxytetracycline in methanol. However, selectivity in water and acetonitrile was 19.42 and 2.86, respectively. Oxytetracycline did bind to imprinted polymer in water or aqueous buffer (pH 7.0) and could be eluted with methanol. Prepared polymer extracted 75–80 % oxytetracycline from water, honey and egg white.