1) two-photon fluorescence
双光子荧光
1.
The UV spectra,single photon fluorescence spectra,single photon fluorescence lifetime,quantum yield and two-photon fluorescence spectra for the compound were determined.
测试了其紫外吸收光谱、单光子荧光光谱、单光子荧光寿命以及双光子荧光光谱。
2.
Cationic colloidal gold (CCG) nanoparticles were used for labeling on the anioinic sites of living cells under two-photon fluorescence (TPF) microscope,and for delivering macromolecules into the target cells when irradiated by focused femtosecond laser pulses.
使用阳离子胶体金标记中国仓鼠卵巢细胞(CHO-K1)的阴离子位点,并采用双光子荧光显微成像和荧光寿命成像技术记录活细胞的阴离子场分布。
2) two-photon excited fluorescence
双光子荧光
1.
The absorption,single photon excited fluorescence,two-photon excited fluorescence spectra have been recorded.
用固相法合成了2个噁二唑衍生物类有机化合物:5-(4-叔丁基苯基)-[1,3,4]噁二唑-2-苯乙烯基-4-苯基-二苯胺(化合物1)与9-乙基-3,6-双{5-(4-叔丁基苯基)-[1,3,4]噁二唑-2-苯乙烯基}-咔唑(化合物2),并测定了它们的吸收光谱、单光子荧光光谱和双光子荧光光谱。
2.
Two symmetrical 2,5-bis[4-(2-arylvinyl)phenyl]-1,3,4-oxadiazoles that exhibit strong two-photon absorption and enhanced two-photon excited fluorescence were designed and synthesized based on “push-core-pull-core-push” molecules built from embedding electron-transporting 1,3,4-oxadiazole in aromatic conjugated system through Wittig-Horner reaction.
这2个对称型D-π-A-π-D生色分子从激发端基到π共轭桥的有效能量传输,对双光子吸收和双光子荧光发射能力贡献较大。
3.
The absorption spectra, one-photon excited fluorescence and two-photon excited fluorescence spectra have been recorded.
这类化合物的单双光子荧光参数都存在着很强的、规则的溶剂效应,表明分子激发态可能存在较大的极性。
3) two photon fluorescence
双光子荧光
1.
In this paper a new method, that is, studying in vitro HpD two photon fluorescence of cancer tissue using stimulation of femtosecond laser is reported.
提出了飞秒激光外源性血卟啉 Hp D 双光子荧光诊断癌症的新方法 。
4) two-photon fluorescence cule
双光子荧光分子
5) Two-photon excited fluorescence
双光子激发荧光
1.
This probe is the first Cu2+ chemosensor with turn-on (85-fold) two-photon excited fluorescence.
当在HEPES缓冲溶液中加入10当量的Cu2 +时,FD2的单光子激发荧光和双光子激发荧光的强度均表现出明显的增强;更为重要的是,运用双光子荧光显微技术可以选择性地对活细胞内Cu2 +进行成像。
6) two-photon fluorescence imaging
双光子荧光成像
1.
The diagnostic application of Confocal raman misrospectroscopy and two-photon fluorescence imaging technology for various tumors and other diseases, were presented.
本文概述了国内外共聚焦显微拉曼光谱技术与双光子荧光成像技术在肿瘤及其它疾病诊断中的研究情况,以离体人体甲状腺正常组织和病变组织为研究对象,实验比较研究了人体正常甲状腺组织、结节性甲状腺肿以及乳头状甲状腺癌组织的显微拉曼光谱,初步探讨了利用显微拉曼光谱技术进行甲状腺癌诊断的可行性。
补充资料：单、双光子吸收法
单、双光子吸收法
SPA采用单一波长的γ射线125碘或241镅为发射源，计算其经过被测物后衰减率，再经一已知标准将其衰减值转换为骨矿含量或骨密度。通常只对四肢骨骼(如桡骨、尺骨)进行测量，并且主要测量皮质骨。为校正软组织产生的变异，测量时受检部位置于与软组织等当量的水袋中，采用多次扫描并取其均数，再除以受检骨的宽度，得骨的面密度，骨密度单位是g/cm2，其准确性约为6%，精确性在1%～2%，辐射剂量较小，通常低于10mRem(毫雷姆)。双光子吸收法(DPA)采用能发射两种不同能量光子的核素作放射源，利用高能和低能射线通过被测部位的不同衰减分布来计算骨的能量衰减分布，故可用来测量一些软组织变异大的部位如脊椎、髋等全身部位的骨矿含量，从而消除软组织及脊髓对测量结果的影响。DPA通常测量L1～L4的骨矿含量，结果以骨矿密度g/cm2表示。且辐射剂量较低，3～5μSv(4～6)。缺点为检查时间较长，并且DPA的测量是射线所经通路的衰减值的总和，无法区分皮质骨和松质骨的骨密度，另外，全身的骨矿含量的测量还受椎体边缘骨赘、椎体小关节肥大、压缩性骨折和钙化血管的影响。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条