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Related Concept Videos

Switching of BJT01:22

Switching of BJT

Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are reverse-biased. The...
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Cell-surface receptors, also known as transmembrane receptors, are cell surface, membrane-anchored (integral) proteins that bind to external ligand molecules. This type of receptor spans the plasma membrane and performs signal transduction, converting an extracellular signal into an intracellular signal. Ligands that interact with cell-surface receptors do not have to enter the cell that they affect. Cell-surface receptors are also called cell-specific proteins or markers because they are...
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Surface Active Agents

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Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
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Related Experiment Video

Updated: May 19, 2026

Building a Simple and Versatile Illumination System for Optogenetic Experiments
06:41

Building a Simple and Versatile Illumination System for Optogenetic Experiments

Published on: January 12, 2021

Organic switches for surfaces and devices.

Albert C Fahrenbach1, Scott C Warren, Jared T Incorvati

  • 1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA.

Advanced Materials (Deerfield Beach, Fla.)
|August 31, 2012
PubMed
Summary

Researchers developed all-organic switches using bottom-up approaches for precise surface manipulation. These nanoscale switches alter surface properties, offering advanced functionalities for integrated systems.

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A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
06:21

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

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Last Updated: May 19, 2026

Building a Simple and Versatile Illumination System for Optogenetic Experiments
06:41

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Published on: January 12, 2021

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles
06:21

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

Published on: March 13, 2017

Area of Science:

  • Materials Science
  • Chemistry
  • Nanotechnology

Background:

  • Miniaturization is a long-standing goal across scientific disciplines.
  • Bottom-up approaches offer alternatives to traditional top-down manufacturing.
  • Organic switches can be precisely controlled on surfaces at the nanoscale.

Purpose of the Study:

  • To report recent advances in integrated systems using all-organic switches.
  • To reveal design concepts for these advanced materials.
  • To highlight the impact of organic switches on substrate properties.

Main Methods:

  • Utilizing bottom-up strategies for fabricating nanoscale components.
  • Developing all-organic switches for surface manipulation.
  • Integrating organic switches onto various substrates.

Main Results:

  • Demonstrated precise control of organic switches on surfaces using external triggers.
  • Showcased modulation of both physical and chemical surface properties.
  • Presented integrated systems with all-organic switches on diverse substrates.

Conclusions:

  • All-organic switches show significant promise for creating functional advanced composite materials.
  • Challenges remain in fully realizing the potential of these materials.
  • Further research is needed to overcome hurdles in conferring function.