Oxygen microscopy by two-photon-excited phosphorescence.

Oxygen microscopy by two-photon-excited phosphorescence.
复制标题

DOI:
10.1002/cphc.200800296
复制
发表时间:
2008-08-25
期刊:
Chemphyschem : a European journal of chemical physics and physical chemistry
影响因子:
--
通讯作者:
Vinogradov SA
Vinogradov SA
中科院分区:
其他
文献类型:
--
作者:
Finikova OS;Lebedev AY;Aprelev A;Troxler T;Gao F;Garnacho C;Muro S;Hochstrasser RM;Vinogradov SA

文献摘要

参考文献

被引文献

相似文献

利用双光子激光扫描显微镜(2P LSM),利用新开发的具有内部增强双光子吸收(2PA)截面的树枝状纳米探针,获得了微观非均质样品中氧分布的高分辨率图像。在这个探针中,能量由一个2PA天线获取,该天线通过分子内能量转移将激发传递给磷光金属卟啉。2P LSM允许以接近衍射限制的分辨率分割氧梯度,并且基于寿命的采集消除了对局部探测器浓度的依赖。这项技术在氧分布已知的物体上得到了验证,并应用于细胞中pO2的成像。
High-resolution images of oxygen distributions in microheterogeneous samples are obtained by two-photon laser scanning microscopy (2P LSM), using a newly developed dendritic nanoprobe with internally enhanced two-photon absorption (2PA) cross-section. In this probe, energy is harvested by a 2PA antenna, which passes excitation onto a phosphorescent metalloporphyrin via intramolecular energy transfer. The 2P LSM allows sectioning of oxygen gradients with near diffraction-limited resolution, and lifetime-based acquisition eliminates dependence on the local probe concentration. The technique is validated on objects with a priori known oxygen distributions and applied to imaging of pO2 in cells.
DOI: 10.1016/s0040-4020(03)00432-0
发表时间: 2003-05-26
期刊: TETRAHEDRON
影响因子: 2.1
作者:
Rietveld, IB;Kim, E;Vinogradov, SA
通讯作者: Vinogradov, SA
DOI: 10.1152/ajpheart.00077.2007
发表时间: 2007-08-01
影响因子: 4.8
作者:
Golub, Aleksander S.;Barker, Matthew C.;Pittman, Roland N.
通讯作者: Pittman, Roland N.
DOI: 10.1002/chem.19970030509
发表时间: 1997-05-01
影响因子: 4.3
作者:
Issberner, J;Vogtle, F;Balzani, V
通讯作者: Balzani, V
DOI: 10.1073/pnas.042671399
发表时间: 2002-02-19
影响因子: 11.1
作者:
Krishna, MC;English, S;Mitchell, JB
通讯作者: Mitchell, JB
DOI: 10.1021/ac035493f
发表时间: 2004-05-01
影响因子: 7.4
作者:
Koo, YEL;Cao, YF;Philbert, MA
通讯作者: Philbert, MA