Live cell refractometry using Hilbert phase microscopy and confocal reflectance microscopy.

Live cell refractometry using Hilbert phase microscopy and confocal reflectance microscopy.
复制标题

DOI:
10.1021/jp904746r
复制
发表时间:
2009-11-26
期刊:
The journal of physical chemistry. A
影响因子:
--
通讯作者:
Feld MS
Feld MS
中科院分区:
其他
文献类型:
--
作者:
Lue N;Choi W;Popescu G;Yaqoob Z;Badizadegan K;Dasari RR;Feld MS

文献摘要

参考文献

被引文献

相似文献

定量化学分析已成为了解生物学中细胞代谢的有用工具。在化学分析中使用的许多物理性质中,折射率特别提供了作为生物活性的重要指标的分子浓度。在这份报告中,我们提出了一种方法,提取全场的活细胞在其自然状态下的折射率地图。我们首先通过希尔伯特相位显微镜记录活细胞的全场光学厚度图,然后使用定制的共聚焦反射显微镜获取相同细胞的物理厚度图。全场和轴向平均的折射率地图获得的光学厚度的物理厚度的比率。轴向平均折射率测量的精度为0.002。这种方法可以提供新的无标记活细胞原位生物测定。
Quantitative chemical analysis has served as a useful tool for understanding cellular metabolisms in biology. Among many physical properties used in chemical analysis, refractive index in particular has provided molecular concentration that is an important indicator for biological activities. In this report, we present a method of extracting full-field refractive index maps of live cells in their native states. We first record full-field optical thickness maps of living cells by Hilbert phase microscopy and then acquire physical thickness maps of the same cells using a custom-built confocal reflectance microscope. Full-field and axially averaged refractive index maps are acquired from the ratio of optical thickness to physical thickness. The accuracy of the axially averaged index measurement is 0.002. This approach can provide novel biological assays of label-free living cells in situ.
DOI: 10.1364/opex.13.009361
发表时间: 2005-11-14
期刊: OPTICS EXPRESS
影响因子: 3.8
作者:
Rappaz, B;Marquet, P;Magistretti, PJ
通讯作者: Magistretti, PJ
DOI: 10.1021/j100324a053
发表时间: 1988-06-30
影响因子: --
作者:
PARNIS, JM;OZIN, GA
通讯作者: OZIN, GA
DOI: 10.1038/nmeth1078
发表时间: 2007-09-01
期刊: NATURE METHODS
影响因子: 48
作者:
Choi, Wonshik;Fang-Yen, Christopher;Feld, Michael S.
通讯作者: Feld, Michael S.
DOI: 10.1083/jcb.105.1.41
发表时间: 1987-07
期刊: The Journal of cell biology
影响因子: --
作者:
White JG;Amos WB;Fordham M
通讯作者: Fordham M
DOI: 10.1117/1.2149847
发表时间: 2005-11-01
影响因子: 3.5
作者:
Popescu, G;Ikeda, T;Feld, MS
通讯作者: Feld, MS