[1]崔曼曼,潘炜伦,刘春辰,等. 仿生量子点脂质体纳米探针的合成[J].中国医学物理学杂志,2018,35(7):849-854.[doi:DOI:10.3969/j.issn.1005-202X.2018.07.021]
 CUI Manman,PAN Weilun,LIU Chunchen,et al. Synthesis of cell membrane biomimetic liposome-quantum dot nanoprobes[J].Chinese Journal of Medical Physics,2018,35(7):849-854.[doi:DOI:10.3969/j.issn.1005-202X.2018.07.021]
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 仿生量子点脂质体纳米探针的合成()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
35卷
期数:
2018年第7期
页码:
849-854
栏目:
生物材料与力学
出版日期:
2018-07-20

文章信息/Info

Title:
 Synthesis of cell membrane biomimetic liposome-quantum dot nanoprobes
文章编号:
1005-202X(2018)07-0849-06
作者:
 崔曼曼潘炜伦刘春辰李博
 南方医科大学南方医院检验科, 广东 广州 510515
Author(s):
 CUI Manman PAN Weilun LIU Chunchen LI Bo
 Department of Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
关键词:
 纳米探针脂质体量子点仿生膜
Keywords:
 Keywords: nanoprobe liposomes quantum dots biomimetic membrane
分类号:
R319;O657.3
DOI:
DOI:10.3969/j.issn.1005-202X.2018.07.021
文献标志码:
A
摘要:
 目的:合成仿生量子点脂质体纳米探针(PEG-LP-QDs),优化合成条件并初步探究PEG-LP-QDs的性质,为PEG-LP-QDs在体内示踪、肿瘤成像、多重检测等生物医学领域的应用奠定基础。 方法:采用薄膜分散法,以磷脂酰胆碱、聚乙二醇(PEG)-磷脂酰乙醇胺、胆固醇为膜材,包裹一定量的油溶性ZnCdSe/ZnS量子点(QDs)合成PEG-LP-QDs;通过透射电子显微镜(TEM)、纳米颗粒追踪技术(NTA)、荧光分光光度计鉴定并分析PEG-LP-QDs的形貌、粒径和荧光强度,进而优化合成温度及QDs数量。 结果:根据合成的LPs粒径与QDs的荧光强度变化,选取40 ℃为最佳合成温度;TEM和NTA结果证实PEG-LP-QDs合成成功,粒径集中分布于128 nm左右;且当加入10 μL浓度为3 mg/mL的QDs时,PEG-LP-QDs的荧光强度达到最大值。 结论:成功合成新型PEG-LP-QDs,具有良好的生物相容性和独特的发光特性,其在生物医学领域中的应用价值有待进一步研究。
Abstract:
 Abstract: Objective To synthesize a biomimetic autofluorescence nanoprobe, polyethylene glycol-liposome-quantum dots (PEG-LP-QDs), optimize the synthesis conditions and preliminarily characterize their properties for laying the basis for further application of PEG-LP-QDs in biomedical fields, such as in vivo tracking, tumor detection and multiplex detection. Methods Oil-soluble fluorescent ZnCdSe/ZnS quantum dots were encapsulated by phosphatidylcholine, PEG-phosphatidyl ethanolamine and cholesterol through thin membrane dispersion method for synthesizing PEG-LP-QDs. Transmission electron microscope, nanoparticle tracking technology and fluorescence spectrophotometer detection methods were used to characterize the morphology, diameter size and fluorescence intensity of PEG-LP-QDs, thus further optimizing the synthesis temperature and QDs quantity. Results As the change of synthesis temperature, the results of LP size-changing and QDs fluorescence-decreasing implied that 40 ℃ was a desired temperature. The results of transmission electron microscope and nanoparticle tracking technology proved that PEG-LP-QDs were successfully synthesized. The average diameter size of PEG-LP-QDs was 128 nm. The fluorescence intensity of PEG-LP-QDs reached the maximum when 10 μL 3 mg/mL QDs were encapsulated. Conclusion A novel biomimetic autofluorescence nanoprobe, PEG-LP-QDs, is successfully synthesized, with good biocompatibility and unique luminescent properties. Further work is needed to investigate the application of biomimetic PEG-LP-QDs in biomedical research.

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备注/Memo

备注/Memo:
 【收稿日期】2018-06-22
【基金项目】国家自然科学基金青年项目(81702100)
【作者简介】崔曼曼,主要研究方向:重要疾病标志物快速诊断生物传感技术的应用基础研究,E-mail: 13265022193@qq.com
【通信作者】李博,医学硕士,讲师,主管技师,主要研究方向:重要疾病标志物快速诊断生物传感技术的应用基础研究,E-mail: nfyylibo2012@smu.edu.cn
更新日期/Last Update: 2018-07-24