Carbon Nitrogen Systems
Carbon Nitrogen Systems - Related Videos
10:41
Carbon and Nitrogen Analysis of Environmental Samples
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Elemental Analysis is a method used to determine elemental composition of a material. In environmental samples such as soils, scientists are particularly interested in the amounts of two ecologically important elements, nitrogen and carbon. Elemental analysis by the flash combustion technique works by oxidizing the sample with a catalyst through combustion in a high-temperature chamber. The products of combustion are...
07:11
Biofilm Removal Using Carbon Dioxide Aerosols without Nitrogen Purge
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Cited by 2 •
2016
Biofilms on surfaces can be effectively and rapidly removed by using a periodic jet of carbon dioxide aerosols without a nitrogen purge.
08:01
Fabrication of 3D Carbon Microelectromechanical Systems (C-MEMS)
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Cited by 6 •
2017
Long and hollow glassy carbon microfibers were fabricated based on the pyrolysis of a natural product, human hair. The two fabrication steps of carbon microelectromechanical and carbon nanoelectromechanical systems, or C-MEMS and C-NEMS, are: (i) photolithography of a carbon-rich polymer precursor and (ii) pyrolysis of the patterned polymer precursor.
11:58
Synthesis and Functionalization of Nitrogen-doped Carbon Nanotube Cups with Gold Nanoparticles as Cork Stoppers
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Cited by 10 •
2013
We discussed the synthesis of individual graphitic nanocups using a series of techniques including chemical vapor deposition, acid oxidation and probe-tip sonication. By citrate reduction of HAuCl4, the graphitic nanocups were effectively corked with gold nanoparticles due to the chemically reactive edges of the cups.
01:49
The Nitrogen Cycle
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2019
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
FAQs
Carbon skeletons and amino groups follow different metabolic fates after amino acid processing. The carbon portion can enter energy-producing pathways, whereas the amino group is transferred or removed and directed toward urea formation. Tracking these linked but distinct routes helps clinicians relate amino acid handling to energy metabolism and nitrogen disposal without treating protein metabolism as a single process.
Urea formation provides a clinical endpoint for nitrogen handling. Because nitrogen is ultimately converted to urea for excretion, changes in this pathway can be considered alongside the functions of organs involved in processing and elimination, particularly the liver and kidneys. This perspective helps connect biochemical nitrogen changes with organ-related metabolic conditions.
Nitrogen balance offers a way to interpret how amino acid-related nitrogen handling relates to protein turnover. The carbon portions of amino acids may enter energy-producing pathways, linking protein metabolism with energy balance. Clinically, considering both elements can clarify metabolic responses associated with nutritional status or altered energy conditions rather than examining nitrogen in isolation.
Changes in energy balance can alter how researchers interpret the relationship between amino acid carbon skeletons and nitrogen-containing compounds. Carbon structures are connected with energy-producing metabolism, while amino groups follow routes leading to urea. Examining both pathways helps place metabolic responses in a broader biochemical context when energy availability or use changes.
Clinical researchers can use this framework to connect protein turnover and nitrogen balance with nutritional status. Amino acid carbon structures provide a link to energy-producing pathways, while nitrogen handling culminates in urea formation and excretion. Interpreting these processes together supports a more integrated view of biochemical changes associated with nutrition.
The framework helps researchers examine how carbon and nitrogen metabolism relates to conditions affecting the liver or kidneys. Liver-related questions may center on nitrogen conversion to urea, while kidney-related questions concern nitrogen excretion. Considering these processes together can connect organ-associated biochemical changes with broader metabolic responses and patient health.
Carbon nitrogen analysis supports investigation of metabolic disorders by linking amino acid metabolism, protein turnover, nitrogen balance, and energy-related pathways. Researchers can use these relationships to interpret biochemical changes alongside patient health and treatment outcomes. The approach is especially useful when disease or therapy changes how the body handles carbon structures or nitrogen-containing compounds.