Cytotoxicity and behavior of polystyrene latex nanoparticles to budding yeast
Cytotoxicity and behavior of polystyrene latex nanoparticles to budding yeast
复制标题
聚苯乙烯乳胶纳米粒子对芽殖酵母的细胞毒性和行为
DOI:
10.1016/j.colsurfa.2015.01.046
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
T. Nomura
中科院分区:
文献类型:
--
作者:
J. Miyazaki;Y. Kuriyama;H. Tokumoto;Y. Konishi;T. Nomura
The cytotoxicity and behavior of positively charged amine-modified polystyrene latex nanoparticles (NPs) toward budding yeast cells were examined in different environments. The yeast cells, dispersed in either 27.8 mM glucose or low-ionic strength aqueous electrolyte solution, were covered with NPs regardless of the ionic species or diameter of the NPs. The NPs that adhered to the cell surface showed high toxicity. The cell viability following NP exposure increased with the NaCl concentration independently of the glucose concentration in the dispersion medium. Therefore, the strong electrostatic attraction between the negatively charged yeast cells and positively charged NPs resulted in NP adhesion to the cell surface and subsequent cell death. However, the amount of endocytosis-like NPs inside the cell, dispersed in the hypertonic solution, was lower than that in the isotonic solution. These results indicate that the osmotic pressure affects the uptake of NPs rather than the cell viability. In contrast, NPs dispersed in a high-ionic strength electrolyte solution with a diameter of ∼100 nm or less were absorbed by the yeast cells. NPs incorporated in the living yeast cells showed little toxicity.
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影响因子:
3.3
作者:
C. Prescianotto‐Baschong;H. Riezman
通讯作者:
H. Riezman
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
H. Ohshima;K. Makino;Takayuki Kato;K. Fujimoto;T. Kondo;H. Kawaguchi
通讯作者:
H. Kawaguchi
影响因子:
19
作者:
Weinberg, Jasper;Drubin, David G.
通讯作者:
Drubin, David G.
影响因子:
5.2
作者:
森 隆昌,後藤 太善;MORI Takamasa;T. Nomura
通讯作者:
T. Nomura
DOI:
10.1016/s0927-7765(97)00023-4
发表时间:
1997
期刊:
Colloids and Surfaces B: Biointerfaces
影响因子:
--
作者:
S. Takashima;H. Morisaki
通讯作者:
H. Morisaki