Exploring the ultrashort pulse laser parameter space for membrane permeabilisation in mammalian cells.
Exploring the ultrashort pulse laser parameter space for membrane permeabilisation in mammalian cells.
复制标题
探索哺乳动物细胞中膜通透性的超短脉冲激光参数空间。
DOI:
10.1038/srep00858
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发表时间:
2012
影响因子:
4.6
通讯作者:
Dholakia, Kishan
中科院分区:
文献类型:
--
作者:
Rudhall, Andrew P.;Antkowiak, Maciej;Tsampoula, Xanthi;Mazilu, Michael;Metzger, Nikolaus K.;Gunn-Moore, Frank;Dholakia, Kishan
The use of ultrashort femtosecond pulsed lasers to effect membrane permeabilisation and initiate both optoinjection and transfection of cells has recently seen immense interest. We investigate femtosecond laser-induced membrane permeabilisation in mammalian cells as a function of pulse duration, pulse energy and number of pulses, by quantifying the efficiency of optoinjection for these parameters. Depending on pulse duration and pulse energy we identify two distinct membrane permeabilisation regimes. In the first regime a nonlinear dependence of order 3.4-9.6 is exhibited below a threshold peak power of at least 6 kW. Above this threshold peak power, the nonlinear dependence is saturated resulting in linear behaviour. This indicates that the membrane permeabilisation mechanism requires efficient multiphoton absorption to produce free electrons but once this process saturates, linear absorption dominates. Our experimental findings support a previously proposed theoretical model and provide a step towards the optimisation of laser-mediated gene delivery into mammalian cells.
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DOI:
10.1364/josab.23.000750
发表时间:
2006-04-01
影响因子:
1.9
作者:
Xu, BW;Gunn, JM;Dantus, M
通讯作者:
Dantus, M
影响因子:
3.4
作者:
Marchington RF;Arita Y;Tsampoula X;Gunn-Moore FJ;Dholakia K
通讯作者:
Dholakia K
影响因子:
3.8
作者:
Shane, Janelle C.;Mazilu, Michael;Dholakia, Kishan
通讯作者:
Dholakia, Kishan
影响因子:
2.8
作者:
Antkowiak, Maciej;Torres-Mapa, Maria Leilani;Dholakia, Kishan
通讯作者:
Dholakia, Kishan
影响因子:
2.1
作者:
Kuetemeyer, K.;Baumgart, J.;Heisterkamp, A.
通讯作者:
Heisterkamp, A.