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Related Concept Videos

Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

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...
Bioremediation00:46

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
Carbon Dioxide Transport in the Blood01:19

Carbon Dioxide Transport in the Blood

Carbon dioxide (CO2) transport in the blood is critical to human physiology. On average, our body cells produce around 200 mL of CO2 per minute, precisely the quantity expelled by the lungs. This process involves the transportation of CO2 from the tissue cells to the lungs in three primary forms.
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
Biofuels01:25

Biofuels

The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
The Carbon Cycle01:14

The Carbon Cycle

Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
The Calvin Benson Cycle01:46

The Calvin Benson Cycle

Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...

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Related Experiment Video

Updated: Jun 28, 2026

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
08:00

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture

Published on: September 29, 2023

Recent advances in CO2 capture and utilization.

Kai Man Kerry Yu1, Igor Curcic, Joseph Gabriel

  • 1Wolfson Catalysis Centre, Inorganic Chemistry Laboratory, University of Oxford, UK.

Chemsuschem
|November 6, 2008
PubMed
Summary

Rising carbon dioxide levels from fossil fuels necessitate urgent action. This review explores promising carbon capture, storage, and chemical fixation methods for a low-carbon future.

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Published on: October 25, 2017

Area of Science:

  • Environmental Science
  • Chemical Engineering
  • Energy Policy

Background:

  • Fossil fuel combustion is the primary energy source, contributing significantly to global warming.
  • Atmospheric carbon dioxide (CO2) levels have risen substantially, reaching 384 ppm in 2007, with annual emissions exceeding 35 Gt.
  • Urgent global action is required to mitigate the CO2 crisis and its environmental impact.

Purpose of the Study:

  • To review recent research in carbon capture and storage (CCS).
  • To examine prospects for chemical fixation of CO2.
  • To guide the development of a future low-carbon global economy.

Main Methods:

  • Literature review of recent research activities.
  • Analysis of thermodynamic considerations for CO2 mitigation.
  • Assessment of reagent availability for carbon fixation.

Main Results:

  • Highlighting promising research in CCS technologies.
  • Evaluating chemical fixation pathways for CO2 utilization.
  • Discussing the feasibility of various mitigation strategies.

Conclusions:

  • Carbon capture and storage offer viable solutions for reducing atmospheric CO2.
  • Chemical fixation presents opportunities for CO2 valorization and a circular economy.
  • A multi-faceted approach combining energy efficiency and CO2 mitigation is crucial for a sustainable future.