Direct observation of DNA molecules in a convection flow of a drying droplet S. S. Abramchuk, A. R. Khokhlov, T. Iwataki, H. Oana and K. Yoshikawa Europhys. Lett., 55 2 (2001) 294-300 Published online: 01 December 2003 DOI: 10.1209/epl/i2001-00412-2