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Chemotactic Response of Marine Micro-Organisms to Micro-Scale Nutrient Layers
JoVE Journal
Biology
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JoVE Journal Biology
Chemotactic Response of Marine Micro-Organisms to Micro-Scale Nutrient Layers
DOI:

22:38 min

May 28, 2007

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Chapters

  • 00:04Microfabrication of channels
  • 00:16Mask
  • 00:55Cleaning and baking the wafer
  • 02:11Coating the wafer
  • 04:13Soft baking the wafer
  • 04:47UV exposure
  • 06:14Developing the wafer
  • 08:19Application of PDMS to produce channels
  • 12:44Experiment 1: Investigating the chemotactic response of marine micr
  • 13:44Adding organisms and substrates to glass syringes
  • 14:39Assembling the microfluidics system on the microscope stage
  • 15:53Observation under microscope
  • 16:37Removing bubbles from channel
  • 17:59Visualization of nutrient gradient and microbes
  • 18:42Measurement of chemotaxis
  • 19:47Experiemnt 2: Investigating the effects of shear on marine bacteria

Summary

Automatic Translation

The fabrication of microfluidic channels and their implementation in experiments for studying the chemotactic foraging behaviour of marine microbes within a patchy nutrient seascape and the swimming behaviour of bacteria within shear flow are described.

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