Department of Chemistry, Zakir Husain Delhi College, University of Delhi, New Delhi 110002, India.
Carbohydr Polym. 2013 Jan 30;92(1):497-502. doi: 10.1016/j.carbpol.2012.09.049. Epub 2012 Oct 2.
To overcome the drawbacks associated with iodine e.g. insolubility in water, etc., it has been complexed with polymers that have the ability to bind it. In this study, gum arabic (GA), a natural gum was functionalized to introduce new reactive groups that can easily interact with small molecules followed by iodination in ethanol solution to prepare an iodine complex. The samples were characterized by FTIR, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The synthesized iodine complex was found reddish-brown in colour and stable at room temperature. The interaction of free available iodine with functionalized GA was also studied and established by UV-vis spectrophotometer. The amount of iodine released in water was measured by iodometric titration method and its value compared with the available iodine complex, polyvinylpyrrolidone-iodine complex. The antimicrobial activity of iodine complex was tested against Escherichia coli (Gram negative bacteria) and found to be effective against it.
为了克服碘的缺点，如在水中不溶等，已经将其与具有结合碘能力的聚合物络合。在这项研究中，阿拉伯树胶（GA）是一种天然胶，经过官能化处理以引入新的反应性基团，这些基团可以很容易地与小分子相互作用，然后在乙醇溶液中进行碘化，以制备碘络合物。通过傅里叶变换红外光谱（FTIR）、热重分析（TGA）和差示扫描量热法（DSC）对样品进行了表征。合成的碘络合物呈红棕色，在室温下稳定。通过紫外可见分光光度计还研究并确定了游离碘与官能化 GA 之间的相互作用。通过碘量滴定法测量了水中释放的碘量，并将其与可用碘络合物聚维酮碘络合物进行了比较。测试了碘络合物对大肠杆菌（革兰氏阴性菌）的抗菌活性，发现其对其有效。
