Details

Autor(en) / Beteiligte

• Yang, Yunze
• Yu, Hui
• Shan, Xiaonan
• Wang, Wei
• Liu, Xianwei
• Wang, Shaopeng
• Tao, Nongjian

Titel

Label-Free Tracking of Single Organelle Transportation in Cells with Nanometer Precision Using a Plasmonic Imaging Technique

Ist Teil von

• Small (Weinheim an der Bergstrasse, Germany), 2015-06, Vol.11 (24), p.2878-2884

Ort / Verlag

Germany: Blackwell Publishing Ltd

Erscheinungsjahr

2015

Link zum Volltext

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• Imaging and tracking of nano‐ and micrometer‐sized organelles in cells with nanometer precision is crucial for understanding cellular behaviors at the molecular scale. Because of the fast intracellular dynamic processes, the imaging and tracking method must also be fast. In addition, to ensure that the observed dynamics is relevant to the native functions, it is critical to keep the cells under their native states. Here, a plasmonics‐based imaging technique is demonstrated for studying the dynamics of organelles in 3D with high localization precision (5 nm) and temporal (10 ms) resolution. The technique is label‐free and can track subcellular structures in the native state of the cells. Using the technique, nanometer steps of organelle (e.g., mitochondria) transportation are observed along neurite microtubules in primary neurons, and the 3D structure of neurite microtubule bundles is reconstructed at the nanometer scale from the tracks of the moving organelles. Plasmonic imaging and tracking provides a fast label‐free method for studying intracellular dynamics. Nanometer tracking accuracy and millisecond temporal resolution are achieved. Three‐dimensional tracking of a moving organelle allows structural mapping of microtubules with high precision.