本文選題：量子點(diǎn)　切入點(diǎn)：熒光　出處：《高等學(xué)校化學(xué)學(xué)報(bào)》2017年04期 　論文類型：期刊論文

【摘要】：基于改進(jìn)的層層組裝法,以氯仿/正丁醇混合溶液作為反應(yīng)溶劑,將油溶性CdSSe/ZnS量子點(diǎn)裝載到表面氨基修飾的磁性聚苯乙烯微球(MS)表面,通過調(diào)節(jié)量子點(diǎn)濃度,制備出高性能CdSSe/ZnS量子點(diǎn)編碼磁性微球(CdSSe/ZnS-MBs).研究了氯仿和氯仿/正丁醇混合溶液對(duì)CdSSe/ZnS-MBs制備效果的影響.結(jié)果表明,氯仿/正丁醇混合溶液不僅能避免氯仿等量子點(diǎn)良溶劑對(duì)聚合物微球的形貌破壞,同時(shí)能促進(jìn)CdSSe/ZnS量子點(diǎn)高效地裝載到磁性微球表面.所制備的CdSSe/ZnS-MBs在水相具有較好的分散性,熒光強(qiáng)度變異系數(shù)(CV)小,形貌均一.該方法為簡單、精確可控地制備高編碼容量的量子點(diǎn)編碼微球提供了新思路.
[Abstract]:Based on the improved layer-by-layer assembly method, the oil-soluble CdSSe/ZnS quantum dots were loaded on the surface of the magnetic polystyrene microspheres modified by the surface amino group with chloroform / n-butanol mixed solution as the reaction solvent, and the concentration of the QDs was adjusted by adjusting the concentration of the QDs. High performance CdSSe/ZnS quantum dot-coded magnetic microspheres were prepared. The effects of chloroform and chloroform / n-butanol mixed solution on the preparation of CdSSe/ZnS-MBs were studied. The mixed solution of chloroform and n-butanol can not only avoid the destruction of the morphology of polymer microspheres by the good solvent of quantum-dots such as chloroform, but also promote the CdSSe/ZnS quantum dots to be loaded onto the surface of magnetic microspheres efficiently. The prepared CdSSe/ZnS-MBs has good dispersion in aqueous phase. The fluorescence intensity coefficient of variation (CVV) is small and the morphology is uniform. This method provides a new idea for the preparation of quantum dot coded microspheres with high coding capacity.
【作者單位】： 上海交通大學(xué)生物醫(yī)學(xué)工程學(xué)院;
【基金】：上海交通大學(xué)醫(yī)工交叉重點(diǎn)基金(批準(zhǔn)號(hào):YG2015ZD11) 國家科技支撐計(jì)劃項(xiàng)目(批準(zhǔn)號(hào):2015BAI31H01)資助~~
【分類號(hào)】：O657.3

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