TY - JOUR
T1 - Cytotoxicity evaluation of magnetite (Fe 3O 4) nanoparticles in mouse embryonic stem cells
AU - Shundo, Chigusa
AU - Zhang, Hong
AU - Nakanishi, Takuya
AU - Osaka, Tetsuya
N1 - Funding Information:
This work was financially supported by Grant-in-Aid for Specially Promoted Research “Establishment of Electrochemical Device Engineering” and Global COE program “Practical Chemical Wisdom”, from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. This work was partly carried out at the Consolidated Research Institute for Advanced Science and Medical Care, Waseda University (ASMeW).
PY - 2012/9/1
Y1 - 2012/9/1
N2 - Magnetite nanoparticles are expected to be applied in the medical field because of their biocompatibility and high saturated magnetization. In this paper, magnetite nanoparticles with a diameter of approximately 40. nm were evaluated for their safety by using mouse embryonic stem (mES) cells. First, various doses of magnetite nanoparticles were added to mES cells to find an optimal dose and to evaluate viability and keeping undifferentiated states of mES. The uptake of nanoparticles by mES cells was confirmed by using cytospin and transmission electron microscopy. Next, mES cells containing magnetite nanoparticles were collected by a magnet column 24. h after the addition of magnetite nanoparticles, and the change in the ratio of those mES cells to the total mES cells was assayed by FACS 0, 4, 8, 12, 16, 24, 48 and 72. h after incubation. The result showed that the ratio decreased with time, indicating that the mES cells excreted the nanoparticles, for there was no change in the total number of cells. Based on these results, it was concluded that magnetite nanoparticles were safe to mES cells.
AB - Magnetite nanoparticles are expected to be applied in the medical field because of their biocompatibility and high saturated magnetization. In this paper, magnetite nanoparticles with a diameter of approximately 40. nm were evaluated for their safety by using mouse embryonic stem (mES) cells. First, various doses of magnetite nanoparticles were added to mES cells to find an optimal dose and to evaluate viability and keeping undifferentiated states of mES. The uptake of nanoparticles by mES cells was confirmed by using cytospin and transmission electron microscopy. Next, mES cells containing magnetite nanoparticles were collected by a magnet column 24. h after the addition of magnetite nanoparticles, and the change in the ratio of those mES cells to the total mES cells was assayed by FACS 0, 4, 8, 12, 16, 24, 48 and 72. h after incubation. The result showed that the ratio decreased with time, indicating that the mES cells excreted the nanoparticles, for there was no change in the total number of cells. Based on these results, it was concluded that magnetite nanoparticles were safe to mES cells.
KW - Embryonic stem cells
KW - Excretion
KW - Magnetite nanoparticles
KW - Safety evaluation
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U2 - 10.1016/j.colsurfb.2012.04.003
DO - 10.1016/j.colsurfb.2012.04.003
M3 - Article
C2 - 22609607
AN - SCOPUS:84861156609
SN - 0927-7765
VL - 97
SP - 221
EP - 225
JO - Colloids and Surfaces B: Biointerfaces
JF - Colloids and Surfaces B: Biointerfaces
ER -