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bbhgchina鐵蟲 (初入文壇)
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[求助]
材料表面細胞活性怎么衡量
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各位兄弟姐妹們, (之前發(fā)信問了幾個牛人同學(xué),都沒有回,無意冒犯,但是這個問題還比較急,現(xiàn)在卡著我,所以又發(fā)帖來咨詢一下)請教一下關(guān)于生物細胞試驗的一個問題,(非生物專業(yè),只在網(wǎng)上搜索過MTT相關(guān)內(nèi)容)望不吝賜教。 我的目標是觀測一種材料表面形態(tài)對細胞的影響。 初步設(shè)計的試驗方案是在實驗組和對照組材料上面分別培養(yǎng)細胞,一定時間后(24h,48h,72h)對比兩邊細胞的差異。 現(xiàn)在的問題是 由于不是生物專業(yè),不知道用什么方法來 對比兩組細胞,甚至不知道培養(yǎng)何種細胞比較好。 我目前的想法是 1. 用電鏡直接觀看細胞形態(tài)變化 /粘附 2. 測量活細胞密度(不知道怎么測) 3. MTT 分析細胞活性 否麻煩大家給點建議 |
Biological |
專家顧問 (正式寫手)
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專家經(jīng)驗: +40 |
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during differentiation, multipotent stem cells could read their microenvironmental signals, integrate them intracellularly, and make varying decisions accordingly. E.g., mesenchymal stem cells, could differentiate into both fibroblasts and osteoblasts according to the matrix stiffness. These points help to explain the development of different tissues. Question: why do u perform these experiments? what is your novelty of your work? have u read some relevant literatures on this topic? As I know, it is generally not new. See the former work of Christopher Chen and Dennis Discher: Geometric Control of Cell Life and Death Science 30 May 1997: Vol. 276 no. 5317 pp. 1425-1428 D.E. Discher, P. Janmey, Y-L. Wang. Tissue cells feel and respond to the stiffness of their substrate. Science 310:1139-1143 (2005). |

鐵蟲 (初入文壇)
專家顧問 (正式寫手)
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專家經(jīng)驗: +40 |
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ATP analysis could be used to measured the loss in viability because a decrease in ATP production can be linked to a decrease in cell number. Specifically, ATP could be quantified by measuring the light produced through ATP's reaction with a naturally occurring firefly enzyme-Luciferase using a luminometer. The amount of light produced corresponds proportionally to the amount of live cells present in the sample. |

專家顧問 (正式寫手)
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專家經(jīng)驗: +40 |
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Are u using multipotent cells like hMSCs? if yes, you could try high-content imaging (see the proliferation) and immunofluorescence Staining (see the expression of alkaline phosphatase (ALP), a marker for early osteogenic differentiation) |

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