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2022 ◽  
Vol 151 ◽  
pp. 106916
Author(s):  
Mitanjali ◽  
Vaibhav Kumar Arghode
Keyword(s):  

Author(s):  
Xue-Hui Shi ◽  
Jing-Ping Yuan ◽  
Ying-Ying Dai ◽  
Xing Liu ◽  
Shu-Lin Liu ◽  
...  

2022 ◽  
Author(s):  
Aiqiang Lu ◽  
Dongmei Wang ◽  
Shengxi He ◽  
Qiuyi Zhongcheng ◽  
Wei Zhang ◽  
...  

2022 ◽  
Author(s):  
Weina Liu ◽  
Md Noor A Alam ◽  
Yan Liu ◽  
Viatcheslav N. Agafonov ◽  
Haoyuan Qi ◽  
...  

Nanodiamonds (NDs) with color centers are excellent emitters for various bioimaging and quantum biosensing applications. In our work, we explored new applications of NDs with silicon-vacancy centers (SiV) obtained by high-pressure high-temperature (HPHT) synthesis based on metal-catalyst-free growth. They are coated with a polypeptide biopolymer which is essential for efficient cellular uptake. The unique optical properties of NDs with SiV are their high photostability and narrow emission in the near-infrared region. Our results demonstrate for the first time that NDs with SiV allow live-cell dual-color imaging and intracellular tracking. Also, intracellular thermometry as well as challenges associated with SiV atomic defects in NDs are investigated and discussed for the first time. NDs with SiV nanoemitters provide new avenues for live-cell bioimaging, diagnostic (SiV as a nanosized thermometer), and theranostic (nanodiamonds as drug carrier) applications.


Author(s):  
Yan Chen ◽  
Wei Li ◽  
Rong-Zhi Gao ◽  
Xiao-Han Wang ◽  
An-na Tang ◽  
...  

An aldol condensation-based strategy is developed for preparing covalent organic polymers (COPs) with strong solution and solid-state dual fluorescence. Moreover, the fluorescence property can be facilely tuned by two ways:...


Author(s):  
Qing Xie ◽  
Jared Wiemann ◽  
Yan Yu ◽  
Xiaoji G. Xu

2021 ◽  
Author(s):  
Jan Christoph Thiele ◽  
Marvin Jungblut ◽  
Dominic A. Helmerich ◽  
Roman Tsukanov ◽  
Anna Chizhik ◽  
...  

Over the last two decades, super-resolution microscopy has seen a tremendous development in speed and resolution, but for most of its methods, there exists a remarkable gap between lateral and axial resolution. Similar to conventional optical microscopy, the axial resolution is by a factor three to five worse than the lateral resolution. One recently developed method to close this gap is metal-induced energy transfer (MIET) imaging which achieves an axial resolution down to nanometers. It exploits the distance dependent quenching of fluorescence when a fluorescent molecule is brought close to a metal surface. In the present manuscript, we combine the extreme axial resolution of MIET imaging with the extraordinary lateral resolution of single-molecule localization microscopy, in particular with direct stochastic optical reconstruction microscopy (dSTORM). This combination allows us to achieve isotropic three-dimensional super-resolution imaging of sub-cellular structures. Moreover, we employed spectral demixing for implementing dual-color MIET-dSTORM that allows us to image and co-localize, in three dimensions, two different cellular structures simultaneously.


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