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Layered double hydroxides as carriers for quantum dots@silica nanospheres

机译：层状双氢氧化物作为量子点@二氧化硅纳米球的载体

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Quantum dot-hydrotalcite layered nanoplatforms were successfully prepared following a one-pot synthesis. The process is very fast and a priori delamination of hydrotalcite is not a prerequisite for the intercalation of quantum dots. The novel materials were extensively characterized by X-ray diffraction, thermogravimetry, infrared spectroscopy, transmission electron microscopy, true color fluorescence microscopy, photoluminescence, and nitrogen adsorption. The quantum dot-hydrotalcite nanomaterials display extremely high stability in mimicking physiological media such as saline serum (pH 5.5) and PBS (pH 7.2). Yet, quantum dot release from the solid structure is noted. In order to prevent the leaking of quantum dots we have developed a novel strategy which consists on using tailor made double layered hydrotalcites as protecting shells for quantum dots embedded into silica nanospheres without changing either the materials or the optical properties.
机译：一锅合成成功制备了量子点水滑石层状纳米平台。该过程非常快，并且水滑石的先验分层不是插入量子点的先决条件。通过X射线衍射，热重分析，红外光谱，透射电子显微镜，真彩色荧光显微镜，光致发光和氮吸附对新型材料进行了广泛的表征。量子点水滑石纳米材料在模仿生理介质（例如盐血清（pH 5.5）和PBS（pH 7.2））中显示出极高的稳定性。然而，注意到从固体结构释放量子点。为了防止量子点泄漏，我们开发了一种新颖的策略，该策略包括使用量身定制的双层水滑石作为嵌入二氧化硅纳米球的量子点的保护壳，而不改变材料或光学性质。

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