A photoactivatable Znsalen complex for super-resolution imaging of mitochondria in living cells

2016 ◽  
Vol 52 (77) ◽  
pp. 11583-11586 ◽  
Author(s):  
Juan Tang ◽  
Mingshu Zhang ◽  
Hao-Yan Yin ◽  
Jing Jing ◽  
Da Xie ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complex ◽  
Transition Metal Complex ◽  
Super Resolution ◽  
Living Cells ◽  
Resolution Imaging

We report the first transition metal complex, Znsalen J-S-Alk, as a photoactivatable probe for super-resolution imaging of mitochondria.

scholarly journals Super-Resolution Tracking of Mitochondrial Dynamics with An Iridium(III) Luminophore

2018 ◽  
Author(s):  
Qixin Chen ◽  
Chengzhi Jin ◽  
Xintian Shao ◽  
Ruilin Guan ◽  
Zhiqi Tian ◽  
...  
Keyword(s):  
Metal Complex ◽  
Transition Metal Complex ◽  
Mitochondrial Dynamics ◽  
Super Resolution ◽  
Living Cells ◽  
Cell Permeability ◽  
Structured Illumination ◽  
Structured Illumination Microscopy ◽  
Super Resolution Microscopy

AbstractCombining luminescent transition metal complex (LTMC) with super-resolution microscopy is an excellent strategy for the long-term visualization of the dynamics of subcellular structures in living cells. However, it remains unclear whether iridium(III) complexes are applicable for a particular type of super-resolution technique, structured illumination microscopy (SIM), to image subcellular structures.As described herein, we developed an iridium(III) dye, to track mitochondrial dynamics in living cells under SIM. The dye demonstrated excellent specificity and photostability and satisfactory cell permeability. While using SIM to image mitochondria, we achieved an approximately 80-nm resolution that allowed the clear observation of the structure of mitochondrial cristae. We used the dye to monitor and quantify mitochondrial dynamics relative to lysosomes, including fusion involved in mitophagy, and newly discovered mitochondria-lysosome contact (MLC) under different conditions. MLC remained intact and fusion vanished when five receptors, p62, NDP52, OPTN, NBR1, and TAX1BP1, were knocked out, suggesting that these two processes are independence.

scholarly journals 3D super-resolved imaging in live cells using sub-diffractive plasmonic localization of hybrid nanopillar arrays

Nanophotonics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 2847-2859
Author(s):  
Soojung Kim ◽  
Hyerin Song ◽  
Heesang Ahn ◽  
Seung Won Jun ◽  
Seungchul Kim ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Imaging Techniques ◽  
Optical Loss ◽  
Super Resolution ◽  
Living Cells ◽  
Live Cells ◽  
Complex Biological System ◽  
Observation Volume ◽  
Resolution Imaging ◽  
Nanopillar Arrays

AbstractAnalysing dynamics of a single biomolecule using high-resolution imaging techniques has been had significant attentions to understand complex biological system. Among the many approaches, vertical nanopillar arrays in contact with the inside of cells have been reported as a one of useful imaging applications since an observation volume can be confined down to few-tens nanometre theoretically. However, the nanopillars experimentally are not able to obtain super-resolution imaging because their evanescent waves generate a high optical loss and a low signal-to-noise ratio. Also, conventional nanopillars have a limitation to yield 3D information because they do not concern field localization in z-axis. Here, we developed novel hybrid nanopillar arrays (HNPs) that consist of SiO2 nanopillars terminated with gold nanodisks, allowing extreme light localization. The electromagnetic field profiles of HNPs are obtained through simulations and imaging resolution of cell membrane and biomolecules in living cells are tested using one-photon and 3D multiphoton fluorescence microscopy, respectively. Consequently, HNPs present approximately 25 times enhanced intensity compared to controls and obtained an axial and lateral resolution of 110 and 210 nm of the intensities of fluorophores conjugated with biomolecules transported in living cells. These structures can be a great platform to analyse complex intracellular environment.

De Novo-Designed Landmine Warfare Strategy Luminophore for Super-resolution Imaging Reveal ONOO- evolution in Living Cells

2021 ◽  
pp. 130151
Author(s):  
Yuanyuan Liu ◽  
Chengying Zhang ◽  
Yongchun Wei ◽  
Huimin Chen ◽  
Lingxiu Kong ◽  
...  
Keyword(s):  
De Novo ◽  
Super Resolution ◽  
Living Cells ◽  
Resolution Imaging

A transition metal complex containing pyrazine-2,5-dicarboxylato bridging ligands: a novel three-dimensional manganese(II) compound

2003 ◽  
Vol 6 (9) ◽  
pp. 1224-1227 ◽  
Author(s):  
Garikoitz Beobide ◽  
Oscar Castillo ◽  
Antonio Luque ◽  
Urko Garcı́a-Couceiro ◽  
Juan P. Garcı́a-Teran ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complex ◽  
Transition Metal Complex ◽  
Three Dimensional ◽  
Bridging Ligands
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