叶酸受体靶向的CdTe/CdS量子点荧光探针的制备和表征
【目的】 研制一种叶酸受体修饰的CdTe/CdS量子点荧光探针并初步验证其靶向性?【方法】 以巯基丁二酸(MSA)为稳定剂,采用水相合成法合成CdTe/CdS核壳型量子点?利用紫外分光光度计?荧光分光光度计?X线粉末衍射仪?透射电镜分别对其紫外吸收情况?光致发光性质?晶体结构?形貌进行表征?采用连接了叶酸的氨基聚乙二醇与CdTe/CdS量子点偶联,制备叶酸受体靶向的(FA-PEG-CdTe/CdS)量子点荧光探针?通过凝胶电泳和光谱分析鉴定偶联效果?在荧光倒置显微镜下观察已知细胞表面叶酸受体阳性的鼻咽癌细胞株HNE-1和人喉癌细胞株Hep-2及叶酸受体阴性的鼻咽癌细胞株CNE-2和FA-PEG...
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Format: | Article |
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Language: | zho |
Published: |
Editorial Office of Journal of Sun Yat-sen University
2013-01-01
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Series: | Zhongshan Daxue xuebao. Yixue kexue ban |
Online Access: | http://xuebaoyx.sysu.edu.cn/zh/article/43575278/ |
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