Molecular Motor - Experimental Observation

Experimental Observation

In experimental biophysics, the activity of molecular motors is observed with many different experimental approaches, among them:

  • Fluorescent methods: fluorescence resonance energy transfer (FRET), fluorescence correlation spectroscopy (FCS), total internal reflection fluorescence (TIRF)
  • Magnetic tweezers can also be useful for analysis of motors that operate on long pieces of DNA
  • Neutron spin echo spectroscopy can be used to observe motion on nanosecond timescales
  • Optical tweezers are well-suited for studying molecular motors because of their low spring constants
  • Single-molecule electrophysiology can be used to measure the dynamics of individual ion channels

Many more techniques are also used. As new technologies and methods are developed, it is expected that knowledge of naturally occurring molecular motors will be helpful in constructing synthetic nanoscale motors.

Read more about this topic:  Molecular Motor

Famous quotes containing the words experimental and/or observation:

    When we run over libraries persuaded of these principles, what havoc must we make? If we take in our hand any volume; of divinity or school metaphysics, for instance; let us ask, Does it contain any abstract reasoning concerning quantity or number? No. Does it contain any experimental reasoning concerning matter of fact and existence? No. Commit it then to the flames; for it can contain nothing but sophistry and illusion.
    David Hume (1711–1776)

    It is, in both cases, that a spiritual life has been imparted to nature; that the solid seeming block of matter has been pervaded and dissolved by a thought; that this feeble human being has penetrated the vast masses of nature with an informing soul, and recognised itself in their harmony, that is, seized their law. In physics, when this is attained, the memory disburthens itself of its cumbrous catalogues of particulars, and carries centuries of observation in a single formula.
    Ralph Waldo Emerson (1803–1882)