A colleague of mine was depressed to find, in a reasonably high impact journal, a statement that magnetic nanoparticles obey Coulomb's law, and thus can be manipulated by external magnetic fields. As far as physics goes, this is just wrong. Coulomb's law is the mathematical relationship that says that the force between two charges is proportional to the product of their charges and inversely proportional to the distance between them. This has nothing to do with magnetic nanoparticles.
I was curious - where did this weird, incorrect statement come from? I turned to google to find out. The earliest result I can find is from this paper by Pankhurst, Connolly, Jones, and Dobson. The paper seems quite good, and the (strange to me) Coulomb's Law language appears to be some shorthand for a physically sound description of the interactions of magnetic materials with magnetic fields. The Pankhurst paper includes the following sentence: "Second, the nanoparticles are magnetic, which means that they obey Coulomb’s law, and can be manipulated by an external magnetic field gradient." This is part of a paragraph that lists three virtues of magnetic nanoparticles for biological applications.
For fun, try copy/pasting that sentence into google. Look at how many times that sentence (indeed, that whole introductory paragraph with very minimal changes) shows up nearly verbatim in other publications. At the risk of saying something actionable, this is plagiarism. This tends to happen in obscure proceedings, edited book chapters, etc., rather than high impact literature. The proliferation of shady publication houses and vanity press journals only aggravates this situation. Very depressing.