In contrast, PMTAC swells in pure water but collapses in aqueous sodium chloride solutions because of the screening effect of electrostatic repulsion between quaternary ammonium cations.

The concept of quaternary prevention defined as an action taken to protect persons from medical interventions that are likely to cause more harm than good, might be a tool that to some extent can help ...

Department of Chemistry, J. C. Bose University of Science and Technology, YMCA, Faridabad 121006, India ...

National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China ...

As the sedimentation of calcium carbonate-phosphate was carried out in the ammonium chloride environment, it is likely that in the calcium channels there were cations of ammonium, and this may have an ...

2020). Materials can be endowed with antibacterial properties by adding functional groups such as quaternary ammonium cation (QAC) (Makvandi et al., 2018) and long alkyl chain (LAC) (Park et al., 2022 ...

To create a clear solution, the mixture was frozen at -20°C for an entire night before being thawed and mixed at 5°C. 3-Chloro-2-hydroxypropyl trimethyl ammonium chloride (Sinopharm, China) was then ...

We reveal that one of these residues is highly conserved and has a crucial role in cation binding especially, in the chelation of divalent cations. This role is essential for the adoption of the ...

The recent progress of our research on anion-exchange membranes (AEMs) for alkaline fuel cell applications is reviewed. The anion conductivity and the mechanical, thermal and chemical stability of ...