Title |
Nano-scale measurement of biomolecules by optical microscopy and semiconductor nanoparticles
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Published in |
Frontiers in Physiology, July 2014
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DOI | 10.3389/fphys.2014.00273 |
Pubmed ID | |
Authors |
Taro Ichimura, Takashi Jin, Hideaki Fujita, Hideo Higuchi, Tomonobu M. Watanabe |
Abstract |
Over the past decade, great developments in optical microscopy have made this technology increasingly compatible with biological studies. Fluorescence microscopy has especially contributed to investigating the dynamic behaviors of live specimens and can now resolve objects with nanometer precision and resolution due to super-resolution imaging. Additionally, single particle tracking provides information on the dynamics of individual proteins at the nanometer scale both in vitro and in cells. Complementing advances in microscopy technologies has been the development of fluorescent probes. The quantum dot, a semi-conductor fluorescent nanoparticle, is particularly suitable for single particle tracking and super-resolution imaging. This article overviews the principles of single particle tracking and super resolution along with describing their application to the nanometer measurement/observation of biological systems when combined with quantum dot technologies. |
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