Potential toxic effects linked to taurine interactions with alkanolamines and diisopropylamine
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View abstract on PubMed
Summary
This summary is machine-generated.Interactions between taurine and common industrial amines like diisopropylamine (DIPA) form hydrophobic clusters, reducing water miscibility and potentially explaining amine toxicity. These findings are crucial for understanding environmental and health impacts.
Area Of Science
- Environmental Chemistry
- Biochemistry
- Toxicology
Background
- Amines such as diisopropylamine (DIPA), aminomethyl propanol (AMP), amino ethoxy ethanol (AEE), diethanolamine (DEA), ethanolamine (EA), pyridine (PYR), and methyl diethanolamine (MDEA) are widely used in industrial applications like carbon capture and gas sweetening.
- These amines are also prevalent in cosmetic products and have been detected in groundwater, raising environmental and health concerns.
- Taurine, an abundant biological molecule with critical functions, possesses sulfonate groups whose interactions with amines have not been previously investigated.
Purpose Of The Study
- To investigate the interactions between taurine and various industrial amines.
- To elucidate the impact of these interactions on amine properties, such as water miscibility.
- To provide insights into potential mechanisms underlying amine toxicity.
Main Methods
- Fourier transform infrared (FTIR) spectroscopy was employed to detect hydrogen bonding between taurine and the selected amines.
- Light scattering experiments were conducted to assess the miscibility of amine-taurine mixtures in water.
- Visual observation of mixture turbidity was used to indicate the formation of hydrophobic clusters.
Main Results
- FTIR spectroscopy confirmed SO…HN hydrogen bonding between taurine and DIPA, AMP, AEE, DEA, EA, and MDEA.
- These interactions led to the formation of hydrophobic amine-taurine clusters, significantly decreasing amine miscibility in water.
- The effect was most pronounced with DIPA, resulting in turbid mixtures with micron-sized droplets, suggesting potential S…N bonding with PYR.
Conclusions
- The study demonstrates that taurine interacts with common industrial amines, forming hydrophobic clusters that reduce their water solubility.
- These findings suggest a novel mechanism for amine toxicity, linked to altered physical properties and potential biological interference.
- Understanding these interactions is vital for assessing the environmental fate and toxicological risks associated with these widely used chemicals.
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