ionic interaction
[/aɪˈɒnɪk ɪntərˈækʃən/]
nounpl: ionic interactions
interação iônica
1. A type of chemical interaction between oppositely charged ions or between an ion and a polar molecule, based on electrostatic attraction
The protein's stability depends heavily on ionic interactions between positively and negatively charged amino acids.
A estabilidade da proteína depende muito das interações iônicas entre aminoácidos carregados positiva e negativamente.
2. In biochemistry, the non-covalent bond formed between charged groups in molecules such as proteins and DNA
Ionic interactions can be disrupted by changes in pH or salt concentration.
As interações iônicas podem ser interrompidas por mudanças no pH ou na concentração de sal.
3. A type of electrostatic force that plays a crucial role in molecular recognition and binding
Ionic interactions are weaker than hydrogen bonds but contribute significantly to molecular structure.
As interações iônicas são mais fracas que as ligações de hidrogênio, mas contribuem significativamente para a estrutura molecular.
This is a technical scientific term used uniformly across English-speaking and Portuguese-speaking countries in academic and research contexts. It is primarily encountered in university-level chemistry, biochemistry, and molecular biology courses. The term is not subject to regional variations in meaning, though orthographic differences exist between Brazilian Portuguese (iônica) and European Portuguese (iónica).
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