节点文献
量子点与多肽LyP-1的连接、表征及对肿瘤细胞的识别
Preparation and Characterization of Quantum dots-peptides Bioconjugations And Their Specificity Related to Recognizing Tumor Cells
【摘要】 利用水相合成的量子点(Quantum dots,QDs)纳米粒子,通过交联剂[N-succinimidyl3-(2-pyridyldithio)propionate,SPDP]将其与多肽LyP-1(CGNKRTRGC)进行连接以形成一种纳米荧光探针。毛细管电泳、吸收光谱以及荧光光谱测试结果表明,LyP-1已成功地连接到了QDs表面,所得荧光探针能较好地识别SPCA-1肺腺癌细胞,但不识别HL-60原髓细胞白血病成淋巴细胞。
【Abstract】 Water-soluble CdTe quantum dots synthesized in aqueous solution have been conjugated with peptide LyP-1 using N-Succinimidyl 3-[2-pyridyldithio]-propionate(SPDP)as a cross-linking reagent.Capillary electrophoresis(CE),UV-Vis absorption and photoluminescent(PL)spectra suggested that the peptide had been successfully linked to the QDs.The QDs-peptides conjugates could specifically recognize the lung adenoma cancer cells(SPCA-1),but did not recognize promyelocytic leukemia cells(HL-60).
【关键词】 量子点;
多肽;
生物连接;
毛细管电泳;
光学性质;
肿瘤细胞;
【Key words】 Quantum dots(QDs)Peptide Bioconjugation Capillary electrophoresis(CE)Optical properties Tumor cells;
【Key words】 Quantum dots(QDs)Peptide Bioconjugation Capillary electrophoresis(CE)Optical properties Tumor cells;
【基金】 国家自然科学基金资助项目(30300085);上海市纳米专项(0352nm110)
- 【文献出处】 生物医学工程学杂志 ,Journal of Biomedical Engineering , 编辑部邮箱 ,2007年03期
- 【分类号】R73-3
- 【被引频次】7
- 【下载频次】435