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Related Concept Videos

Microtubule Associated Motor Proteins01:32

Microtubule Associated Motor Proteins

Eukaryotic cells have different motor proteins for transporting various cargo within the cell. These motor proteins differ based on the filament they associate with, the direction they move within the cell, and the type of cargo they transport. Motor proteins that associate with microtubules are known as microtubule-associated motor proteins. There are two families of microtubule-associated motor proteins —Kinesins and Dyneins. Both these proteins assist in the transport of cellular cargos...
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Cell separation was first achieved in 1964 by S. H. Seal, who separated large tumor cells from the smaller blood cells using filtration. Two years later, Pohl and Hawk performed experiments on how cells respond differently to a nonuniform electric field based on the cell type. Such observations were the inception of cell separation methods, which allow isolating a single cell type from a heterogeneous sample.

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Related Experiment Video

Updated: Jun 24, 2026

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
08:40

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

Biomolecular motor-driven molecular sorter.

Taesung Kim1, Li-Jing Cheng, Ming-Tse Kao

  • 1Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA.

Lab on a Chip
|April 17, 2009
PubMed
Summary
This summary is machine-generated.

This study introduces a novel microfluidic device using kinesin motors and microtubules to efficiently sort and concentrate biomolecules. The technology achieves significant concentration increases, offering a new method for molecular analysis.

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Area of Science:

  • Biotechnology
  • Nanotechnology
  • Molecular Biology

Background:

  • Efficient concentration of (bio-)analyte molecules is crucial for various analytical applications.
  • Existing methods for molecular concentration can be time-consuming and less efficient.

Purpose of the Study:

  • To develop a novel microfluidic device for efficient sorting and concentration of (bio-)analyte molecules.
  • To utilize kinesin motors and microtubules as a chemo-mechanical transduction system for molecular manipulation.

Main Methods:

  • Development of a microfabricated, stand-alone microfluidic device.
  • Employment of kinesin motors and functionalized microtubules for molecular translocation.
  • Utilizing a horseshoe-shaped collector for molecule concentration.

Main Results:

  • The device efficiently sorts and concentrates (bio-)analyte molecules.
  • Hundreds of targeted molecules are removed per second from an analyte stream.
  • Target biomolecule concentrations increased up to three orders of magnitude within one hour.

Conclusions:

  • The developed microfluidic device offers a novel and efficient chemo-mechanical approach for molecular concentration.
  • This technology has potential applications in diagnostics, molecular analysis, and other fields requiring high-sensitivity detection.