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首页> 外文期刊>Digest Journal of Nanomaterials and Biostructures >SYNTHESIZING, CHITOSAN COATING AND DETECTING THE NANOTOXIC EFFECT OF THE LEAD SELENIDE (PbSe) QUANTUM DOTS
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SYNTHESIZING, CHITOSAN COATING AND DETECTING THE NANOTOXIC EFFECT OF THE LEAD SELENIDE (PbSe) QUANTUM DOTS

机译：硒化铅（PbSe）量子点的合成，壳聚糖涂层和纳米氧化作用的检测

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Researches on nano-structured materials (100 nm) are increasing rapidly in the direction of technological developments. Synthesis and modification of quantum dots, known as nanomaterials and nanocrystals, have become an important aspect of nanotechnology. The reason for this is that it has many potential applications in the field, including biomedicine and pharmacology. The unique properties and biological effects of nanostructured particles indicate that they can potentially be used as an alternative in the treatment of various diseases. In this work, PbSe quantum dots were synthesized by chemical method and modified by chitosan coating. The characterization of PbSe was done by TEM, SEM, XRD, DLS and Zeta potential analysis methods. When the morphological structures of the quantum dots obtained by chemical synthesis were examined, round and spherical nano-sized particles (20 nm) of all PbSe were obtained according to TEM and SEM results. It has been seen that PbSe quantum dots have a positive (+) surface charge and are highly stable (40 + mV). In addition, the increase in oxidation resistance of PbSe coated with chitosan was found in XRD results. As a result of this research, small size and biopolymer coated and thus more stable quantum dots could be obtained. It has also been found that PbSe quantum dots coated with biopolymers like chitosan may have the potential to be used in pharmacology and biomedical applications.
机译：纳米结构材料（<100 nm）的研究朝着技术发展的方向迅速增长。被称为纳米材料和纳米晶体的量子点的合成和修饰已成为纳米技术的重要方面。其原因是它在该领域具有许多潜在的应用，包括生物医学和药理学。纳米结构颗粒的独特性质和生物学效应表明，它们可以潜在地用作治疗各种疾病的替代方法。在这项工作中，通过化学方法合成了PbSe量子点，并通过壳聚糖涂层对其进行了改性。通过TEM，SEM，XRD，DLS和Zeta电势分析方法对PbSe进行表征。当检查通过化学合成获得的量子点的形态结构时，根据TEM和SEM结果获得了所有PbSe的圆形和球形纳米尺寸颗粒（<20 nm）。已经发现，PbSe量子点具有正（+）表面电荷，并且高度稳定（40 + mV）。另外，在X射线衍射结果中发现了壳聚糖包被的PbSe的抗氧化性增加。这项研究的结果是，可以获得小尺寸的生物聚合物涂层，因此可以获得更稳定的量子点。还已经发现，涂覆有生物聚合物如壳聚糖的PbSe量子点可能具有用于药理学和生物医学应用的潜力。

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