论文部分内容阅读
选择壳聚糖水溶液作为唯一反应物,利用简单方便的微波原位法制备碳点/壳聚糖荧光复合物,该复合物无需经过产物分离提纯等步骤就能够直接进行后续应用.测试结果表明,碳点/壳聚糖复合物溶液呈黄棕色,透明均一,在365 nm紫外光下显示出明显的蓝色荧光.此外,碳点/壳聚糖复合物中的碳点分散良好,尺寸比较均一.重要的是,该碳点/壳聚糖复合物具有新的综合性能特点,即不仅被赋予了碳点的多色荧光性能,而且还保留了壳聚糖的成膜性能和p H刺激响应性能,可以十分方便地直接进行多种应用,包括利用该复合物制备荧光复合膜和复合球,以及采用电沉积方法制备具有特定形状的荧光涂层,还可以直接应用于细胞成像.因此,这种微波原位法制备的碳点/壳聚糖复合物在荧光材料、荧光涂层、生物成像和生物标记等领域具有潜在的应用价值.
The chitosan aqueous solution was chosen as the sole reactant, and the carbon dots / chitosan fluorescent complex was prepared by a simple and convenient microwave in situ method. The composite could be used directly for subsequent application without the steps of product separation and purification, etc. The test results showed that, The carbon dots / chitosan complex solution was yellow-brown, transparent and uniform, showing obvious blue fluorescence under 365 nm UV light.In addition, the carbon dots in the carbon dots / chitosan composite were well dispersed and the sizes were relatively uniform Importantly, the carbon dot / chitosan complex has a new synthetic performance characteristic that is not only given the multicolor fluorescence of the carbon dots, but also retains the chitosan film-forming properties and the pH stimulus response Performance, can be easily and directly for a variety of applications, including the use of the composite preparation of fluorescent composite film and composite ball, and the use of electrodeposition method for the preparation of a specific shape of the fluorescent coating, can also be applied directly to the cell imaging.Therefore, this The carbon dots / chitosan complex prepared by microwave in situ method has potential application in the fields of fluorescent materials, fluorescent coatings, bioimaging and biomarkers.