Key points are not available for this paper at this time.
From flames to flying elephants: A few years ago the idea of making proteins or polymers “fly” by electrospray ionization (ESI) seemed as improbable as a flying elephant, but today it is a standard part of modern mass spectrometers. The key to this success was the development of free jet technology.
John B. Fenn (Fri,) studied this question.