The study, which found that water has a memory lacks credible research to verify the claim, and as of now, it is unproven.
Similarly, in 1988 Jacques Benveniste, a French immunologist, claimed that water could retain 'memories' of compounds even when diluted at a very high level. It was taken as support of homeopathy by its proponents, but other scientists weren't able to replicate it.
French virologist Luc Montagnier, who shared the Nobel Prize in physiology in 2008, also suggested that water retains electrochemical properties. Montagnier considers himself an intellectual successor to Jacques. The latter claims that DNA emits weak electromagnetic waves that cause structural changes in water that persist even in high dilutions. But many scientists have been very doubtful of his claim. The concept that water has memory is not accepted in the scientific community. There is no proper evidence, and more studies are required to verify the claim.