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长春理工大学理学院 国际纳米光子学与生物光子学联合研究中心,吉林 长春,130022
纸质出版日期:2015-11-10,
收稿日期:2015-5-25,
修回日期:2015-9-28,
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王倩, 刘丽炜, 朱泠西等. 低分子量聚乙烯亚胺/金纳米棒纳米载体的制备及毒性研究[J]. 发光学报, 2015,36(11): 1271-1277
WANG Qian, LIU Li-wei, ZHU Ling-xi etc. Synthesization and Toxicity of Low-molecular-weight PEI/Gold Nanords Nanosystem[J]. Chinese Journal of Luminescence, 2015,36(11): 1271-1277
王倩, 刘丽炜, 朱泠西等. 低分子量聚乙烯亚胺/金纳米棒纳米载体的制备及毒性研究[J]. 发光学报, 2015,36(11): 1271-1277 DOI: 10.3788/fgxb20153611.1271.
WANG Qian, LIU Li-wei, ZHU Ling-xi etc. Synthesization and Toxicity of Low-molecular-weight PEI/Gold Nanords Nanosystem[J]. Chinese Journal of Luminescence, 2015,36(11): 1271-1277 DOI: 10.3788/fgxb20153611.1271.
以表面修饰巯基十一烷酸的金纳米棒 (GNRs/MUA)为骨架
将低分子量的聚乙烯亚胺(PEI)连接到GNRs/MUA表面
构建GNRs/MUA/PEI纳米载体.首先采用MUA对GNRs进行表面修饰
减少由于GNRs表面的十六烷基三甲基溴化铵(CTAB)所造成的生物毒性.然后采用低分子量 PEI 进一步修饰
同时利用GNRs巨大的比表面积进一步放大 PEI 的携带基因能力
这样既能够降低阳离子聚合物的毒性
又能够提高整个体系的转染效率.利用透射电子显微镜(TEM)、紫外可见吸收光谱(UV-Vis)、Zeta电位等对纳米载体进行了表征.结果显示
MUA与PEI已成功修饰到GNRs表面
并很好地保留了GNRs的光学性质
其表面电位发生正负交替变化.采用噻唑蓝(MTT)比色法对纳米载体进行细胞毒性研究
结果显示GNRs/MUA/PEI(1.8 kDa)非病毒纳米载体
细胞存活率在控制聚合物浓度为300 g/mL时仍然稳定在75%以上
明显高于商品化的PEI(25 kDa).
Based on the gold nanorods modified by 11-mercaptopropanic acid (MUA) as the skeleton
the low molecular weight polyethylenimine PEI was conjugated to the surface of GNRs/MUA to form GNRs/MUA/PEI nanocomplexes. Firstly
surface modification of gold nanorods was carried out by using MUA to reduce the toxicity of gold nanorods caused by CTAB surfactants
and then further modified by low molecular weight PEI. The large surface area of gold nanorods allows them to carry more genes
which can simultaneously reduce the toxicity of cationic polymer and improve the transfection efficiency of the whole system. GNRs/MUA/PEI were characterized by transmission electron microscopy (TEM)
UV-Vis absorption spectra
and Zeta potential. The results show that MUA and PEI are conjugated to GNRs successfully which cause charge reversal on the surface of GNRs
and the optical properties of GNRs are well preserved.
In vitro
cytotoxic effects of GNRs/MUA/PEI (1.8 kDa) are quantified by MTT assay
and the results suggest that the cell viability is above 75% at the concentration of 300 g/mL
much higher than the commercialized PEI(25 kDa).
金纳米棒聚乙烯亚胺非病毒载体细胞毒性
gold nanorodspolyethyleniminenonviral vectorscytotoxicity
Zuckerman J E, Choi C H J, Han H, et al. Polycation-siRNA nanoparticles can disassemble at the kidney glomerular basement membrane [J]. Proc. Natl. Acad. Sci., 2012, 109(8):3137-3142.
Videira M, Arranja A, Rafael D, et al. Preclinical development of siRNA therapeutics: Towards the match between fundamental science and engineered systems [J]. Nanomedicine, 2014, 10(4):689-702.
Novo L, Van Gaal E V B, Mastrobattista E, et al. Decationized crosslinked polyplexes for redoxtriggered gene delivery [J]. J. Controll. Release, 2013, 169(3):246-256.
Kwok A, Hart S L. Comparative structural and functional studies of nanoparticle formulations for DNA and siRNA delivery [J]. Nanomedicine, 2011, 7(2):210-219.
Novo L, Mastrobattista E, Van Nostrum C F, et al. Targeted decationized polyplexes for cell specific gene delivery [J]. Bioconjug. Chem., 2014, 25(4):802-812.
Yin F, Yang C B, Wang Q Q, et al. A light-driven therapy of pancreatic adenocarcinoma using gold nanorods-based nanocarriers for co-delivery of doxorubicin and siRNA [J]. Theranostics, 2015, 5(8):818-833.
Sun G M, Yang P H, Sun J H, et al. Fluorescence imaging of hepatocellular carcinoma cells labeled with gold nanorods and detection by AFM [J]. Chin. J. Lumin.(发光学报), 2011, 32(6):636-641 (in Chinese).
Han L, Zhao J, Zhang X, et al. Enhanced siRNA delivery and silencing goldchitosan nanosystem with surface charge-reversal polymer assembly and good biocompatibility [J]. ACS Nano, 2012, 6(8):7340-7351.
Lee S K, Han M S, Asokan S, et al. Effective gene silencing by multilayered siRNA-coated gold nanoparticles [J]. Small, 2011, 7(3):364-370.
Troiber C, Kasper J C, Milani S, et al. Comparison of four different particle sizing methods for siRNA polyplex characterization [J]. Pharm. Biopharm., 2013, 84(2):255-264.
Xue H Y, Wong H L. Solid lipid-PEI hybrid nanocarrier: An integrated approach to provide extended, targeted, and safer siRNA therapy of prostate cancer in an all-in-one manner [J]. ACS Nano, 2011, 5(4):7034-7047.
Park J S, Yang H N, Woo D G, et al. Chondrogenesis of human mesenchymal stem cells mediated by the combination of SOX trio SOX5, 6, and 9 genes complexed with PEI-modified PLGA nanoparticles [J]. Biomaterials, 2011, 32(14):3679-3688.
TrosdeIlarduya C, Sun Y, Dzgnes N. Gene delivery by lipoplexes and polyplexes [J]. Eur. J. Pharm. Sci., 2010, 40(3):159-170.
Lee Y, Miyata K, Oba M, et al. Charge-conversion ternary polyplex with endosome disruption moiety: A technique for efficient and safe gene delivery [J]. Angew. Chem. Int. Ed., 2008, 47(28):5163-5166.
Tsai L R, Chen M H, Chien C T, et al. A single-monomer derived linear-like PEI-co-PEG for siRNA delivery and silencing [J]. Biomaterials, 2011, 32(4):3647-3653.
Tang G P, Guo H Y, Alexis F, et al. Low molecular weight polyelhylenimines linked by -cyclodextrin for gene transfer into the nervoussystem [J]. J. Gene Med., 2006, 8(6):736-744.
Goula D, Remy J S, Erbacher P, et al. Size, diffusibilitv and tmnsfection performance of linear PEI/DNA complexes in the mouse central nervous system [J]. Gene Ther., 1998, 5(5):712-717.
Vicennati P, Giuliano A, Ortaggi G, et al. Polyethylenimine in medicinal chemistry [J]. Curr. Med. Chem., 2008, 15(27):2826-2839.
Wu H Y, Chu H C, Kuo T J, et al. Seed-mediated synthesis of high aspect ratio gold nanorods with nitric acid [J]. Chem. Mater., 2005, 17(25):6447-6451.
Ye X C, Jin L H, Caglayan H, et al. Improved size-tunable synthesis of monodisperse gold nanorods through the use of aromatic additives [J]. ACS Nano, 2012, 6(3):2804-2817.
Perez-Juste J, Liz-Marzan L M, Carnie S D, et al. Electric-field-directed growth for gold nanorods [J]. Adv. Funct. Mater., 2004, 14(3):571-579.
Kim F, Song J H, Yang P D. Photochemical synthesis of gold nano-rods [J]. Am. Chem. Soc., 2002, 124(48):14316-14317.
Zhou H Y, Zhou R, X B, et al. Preparation and cytotoxicity of high-aspect-ratio gold nanorods at single cell level [J]. Chin. J. Anal. Chem.(分析化学), 2012, 40(12):1807-1815 (in Chinese).
Justin C, Meenakshi V, Wang Y Y, et al. Replacement of cetyltrimethylammoniumbromide bilayer on gold nanorod by alkanethiol crosslinker for enhanced plasmon resonance sensitivity [J]. Biosens. Bioelectron., 2013, 49:525-530.
Nikoobakht B, El-Sayed M A. Preparation and growth mechanism of gold nanorods (NRs) using seed-mediated growth method [J]. Chem. Mater., 2003, 15(10):1957-1962.
Pe'rez-Juste J, Pastoriza-Santos I, Liz-Marzań L M, et al. Gold nanorods: Synthesis, character-ization and applications [J]. Coordin. Chem. Rev., 2005, 249(23):1870-1901.
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