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A molecule or ion having separate positively and negatively charged groups.
- ‘Some organic molecules may carry a positive and a negative charge on different parts of the molecule and are known as zwitterions.’
- ‘Further experiments will address the problem of how many water molecules are required to facilitate and stabilise charge transfer to the zwitterion.’
- ‘In these studies we have immobilized a wide range of hydrophobic zwitterions onto a reversed-phase chromatographic support to produce the desired zwitterionic stationary phase.’
- ‘As a result, gramicidin does not form a zwitterion or become charged at any pH, explaining its poor solubility in water.’
- ‘In the case of SPM, the presence of the highly hydratable and relatively bulky zwitterion, phosphorylcholine, further affects ceramide behavior.’
Early 20th century: from German, from Zwitter a hybrid + Ion ion.
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