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Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
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Atmospheric CO2 penetrates the concrete's pores and, in the presence of moisture, forms carbonic acid, which then reacts with calcium hydroxide in the hydrated cement, forming calcium carbonate. This process reduces the concrete's volume and is termed carbonation shrinkage.
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Graphitic carbon-nanoparticle-based single-label nanobeacons.

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New nanobeacon sensors using graphitic carbon nanoparticles offer excellent performance with simplified operation and lower costs. These sensors utilize fluorescence resonance energy transfer (FRET) for sensitive detection.

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Area of Science:

  • Nanotechnology
  • Materials Science
  • Chemical Sensing

Background:

  • Fluorescence resonance energy transfer (FRET) is a key mechanism in biosensing.
  • Developing cost-effective and efficient nanosensors is crucial for various applications.

Purpose of the Study:

  • To develop novel single-label nanobeacon sensors.
  • To utilize graphitic carbon nanoparticles (CNPs) and their oxides as energy acceptors in FRET-based sensing.

Main Methods:

  • Construction of nanobeacon sensors using graphitic carbon nanoparticles (CNPs) and their oxides.
  • Implementation of fluorescence resonance energy transfer (FRET) for signal transduction.

Main Results:

  • Achieved excellent sensing performances with the developed nanobeacon sensors.
  • Demonstrated simplified operation and significantly lowered costs compared to existing methods.

Conclusions:

  • Graphitic carbon nanoparticles are effective energy acceptors for FRET-based nanobeacon sensors.
  • The developed sensors offer a promising, cost-effective solution for sensitive detection.