3D nanometer tracking of motile microtubules on reflective surfaces
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Quantitative, nanometerscale information of dynamic processes in nanobiological transport systems can be obtained using standard microscopy equipment. Biomolecular motor-driven nanodevices are dynamic, soft systems exhibiting rapid energy flow and mechanical motion. Active movement is a key ability of biological nanomachines, and finds applications in a number of hybrid bio-nanodevices. Fluorescently-labeled MTs were deposited onto polystyrene layers of varying thickness on Si chips to calibrate optical system. Rhodamine-labeled MTs were polymerized from bovine brain tubulin in BRB80 buffer with 4 mM MgCl2, I mM Mg-GTP, and 5% dimethylsulfoxide at 37°C. The fluorescence intensity of 30 MT segments of 2-μm length each on a glass surface, finding a standard deviation of less than 15%.
Details
Original language | English |
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Pages (from-to) | 1732-1737 |
Number of pages | 6 |
Journal | Small |
Volume | 5 |
Issue number | 15 |
Publication status | Published - 3 Aug 2009 |
Peer-reviewed | Yes |
Externally published | Yes |
External IDs
PubMed | 19367603 |
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ORCID | /0000-0002-0750-8515/work/142235569 |
Keywords
ASJC Scopus subject areas
Keywords
- Fluorescence interference contrast microscopy, Kinesinmotors, Microtubules, Nanometer-tracking