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whitney1989

银虫 (小有名气)

[求助] 求助有关膜片钳的英文翻译

For electrophysiological analysis,MCF-7 cells were cultured in 35 mm
petri dishes.Electrophysiological signals were recorded,amplified,
digitized,and analyzed with the use of an Axopatch 200B patch-clamp
(Axon Instruments,Burlingame,CA)in conjunction with Labmaster
hardware(Digidata 1200,Axon Instruments)and Pclamp software(ver
6.03,Axon Instruments).The whole-cell mode of the patch-clamp
technique was used with 4–7 MV resistance borosilicate fire-polished
pipettes(Hirschmann
1
,Laborgerate,Eberstadt,Germany).Seal
resistance was typically in the 10–20 GV range.After formation of a
seal,the amplifier was switched to voltage-clamp mode and currents
attained stable values within 3–5 min.All recordings were made
without leak subtraction.Results were expressed using current-
densities(pA/pF)instead of current amplitude.The cell surface of the
MCF-7 cells was thus estimated by measuring their membrane
capacitance(20.8 4.7 pF,n?63).Whole-cell current was elicited by
voltage ramp or by voltage step from 80 tot80 mV delivered at
30 sec intervals for 250 msec,applied from a holding potential of 40
mV.The cell under investigation was continuously superfused with
control or test solutions.
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_▕若¨|相依

木虫 (正式写手)

【答案】应助回帖

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whitney1989: 金币+12, 翻译EPI+1, 有帮助 2012-04-23 09:21:53
Mally89: 金币+1 2012-05-07 16:56:44
sltmac: 金币+4 2012-05-11 08:06:18
为了电生理分析,将MCF - 7细胞培养在35毫米培养皿。将电生理信号的记录,放大,数字化,并分析了使用一个Axopatch 200B膜片钳(轴突仪器,蒲安臣,加利福尼亚州)结合实验室主硬件(digidata 1200,轴突仪器)和膜片箝软件(ver6.03,轴突文书)。膜片钳技术全细胞模式是用4–7压阻硅火抛光管(赫思曼,laborgerate,艾伯斯塔德,德国)。密封电阻通常是在10–20GV范围内。形成密封后,放大器切换到电压钳模式且电流在3–5分钟之内达到稳定值。所有的记录都在无衰减时做得。结果表示使用电流密度(pA/pF)代替电流幅值。MCF - 7细胞的表面因此可估计得到通过测量膜电容(20.8 4.7 pF,n?63)。全细胞电流引起被探测出通过斜坡电压或电压在30秒内从80 到80mv维持250毫秒,适用于恒压40毫伏。考察的细胞是不断被可控冷却或测试解决方案。
如若这般,当初又为了什么?
2楼2012-04-23 00:02:37
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whitney1989

银虫 (小有名气)

引用回帖:
2楼: Originally posted by _▕若¨|相依 at 2012-04-23 00:02:37:
为了电生理分析,将MCF - 7细胞培养在35毫米培养皿。将电生理信号的记录,放大,数字化,并分析了使用一个Axopatch 200B膜片钳(轴突仪器,蒲安臣,加利福尼亚州)结合实验室主硬件(digidata 1200,轴突仪器)和 ...

全细胞电流引起被探测出通过斜坡电压或电压在30秒内从80 到80mv维持250毫秒,适用于恒压40毫伏。在30s内从-80到80mv维持250ms,是什么意思啊?我不懂这句话
3楼2012-04-23 09:35:48
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_▕若¨|相依

木虫 (正式写手)

【答案】应助回帖

引用回帖:
3楼: Originally posted by whitney1989 at 2012-04-23 09:35:48:
全细胞电流引起被探测出通过斜坡电压或电压在30秒内从80 到80mv维持250毫秒,适用于恒压40毫伏。在30s内从-80到80mv维持250ms,是什么意思啊?我不懂这句话

额,让我再改改哈,睡觉之前翻译的,可能有疏忽。不好意思啊
如若这般,当初又为了什么?
4楼2012-04-23 10:40:36
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木虫 (正式写手)

【答案】应助回帖

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sltmac: 金币+4 2012-05-11 08:06:30
80 tot80 mV delivered at
30 sec intervals for 250 msec,
全细胞电流被探测出通过斜坡电压或电压在30秒内时间间隔为250毫秒从80tot到80毫伏,适用于恒压40毫伏,这里的tot我就不知道具体指什么单位了。或者其他什么了
如若这般,当初又为了什么?
5楼2012-04-23 10:55:37
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