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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and Functional Evaluation of Agarose Derivatives
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Preparation and Functional Evaluation of Agarose Derivatives

机译：琼脂糖衍生物的制备及功能评价

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摘要

A facile microwave-assisted one-pot synthesis of sodium carboxymethylagarose and calcium carboxymethylagarose from Gracilaria dura agarose (Ag) has been described. The process is user friendly, and the highest degree of substitution was obtained within 15 min compared with the conventional method, which requires more than 3 h. Solubility and gelling behavior of the modified Ag products were found to be dependent on degree of substitution of the products. The characterizations were done by using Fourier transform infrared spectroscopy, ~1H- and ~(13)C-nuclear magnetic resonance spectroscopy, thermogravimetric analysis, scanning electron microscopy, Inductively coupled plasma spectrophotometry (ICP), rheology, conductometer analysis, and DNA gel electrophoresis. These agarose derivatives were easily soluble in water and exhibited low thermal hysteresis, improved conductivity, and improved the DNA resolution ability of the parent G. dura Ag hydrogels. These hydrogels may have potential applications in the areas including electrochemical devices, microbiology, biomedical, and pharmaceuticals fields.
机译：已经描述了从硬皮菜豆琼脂糖（Ag）容易地微波辅助的一锅合成羧甲基琼脂糖钠和羧甲基琼脂糖钙。该过程是用户友好的，与传统方法相比，需要3小时以上的时间，在15分钟内获得了最高的取代度。发现改性的Ag产物的溶解度和胶凝行为取决于产物的取代度。通过使用傅立叶变换红外光谱，〜1H和〜（13）C核磁共振光谱，热重分析，扫描电子显微镜，电感耦合等离子体光谱（ICP），流变学，电导仪分析和DNA凝胶电泳来完成表征。这些琼脂糖衍生物易于溶于水，并表现出低的热滞后性，提高了电导率，并提高了母体杜氏银水凝胶的DNA分辨能力。这些水凝胶可在包括电化学装置，微生物学，生物医学和制药领域的领域中潜在应用。

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