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Controlled glucose consumption in yeast using a transistor-like device.

Yang Song1, Jiapeng Wang1, Siu-Tung Yau2

  • 1Department of Electrical and Computer Engineering, Cleveland State University, Cleveland, Ohio 44115, USA.

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Researchers developed a novel transistor-like device to control cellular metabolism. This device precisely regulates glucose consumption and the production of adenosine triphosphate (ATP) and ethanol in yeast cells through electrostatic means.

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Area of Science:

  • Systems Biology
  • Bioelectrochemistry
  • Metabolic Engineering

Background:

  • Understanding complex biological systems requires insights into their control mechanisms.
  • Novel devices and instrumentation are crucial for advancing systems biology.
  • Controlling cellular processes at the molecular level is a key challenge.

Purpose of the Study:

  • To demonstrate a transistor-like device for controlling cellular metabolic kinetics.
  • To investigate the electrostatic control of glucose metabolism in yeast.
  • To correlate glucose consumption with end-product formation (ATP and ethanol).

Main Methods:

  • Utilized a transistor-like device with a yeast-immobilized electrode.
  • Applied a gating voltage to an insulated electrode to modulate cellular activity.
  • Monitored glucose consumption, adenosine triphosphate (ATP), and ethanol production rates.
  • Investigated the device's effect on electron transfer within the yeast cell.

Main Results:

  • The gating voltage effectively controlled the rate of glucose consumption.
  • The device regulated the production of ATP and ethanol, key metabolic products.
  • A direct correlation was observed between glucose consumption and ethanol production modulated by the gating voltage.
  • The results indicated the electrostatic nature of the device's control mechanism.

Conclusions:

  • A novel electrostatic device can precisely control cellular metabolic pathways.
  • This technique offers a new method for studying and manipulating biological processes in general cells.
  • Electrostatic control presents a promising avenue for future bioelectronic applications and cellular engineering.