Nel corso degli anni, sono state conseguite, nei vari campi di interesse, le seguenti collaborazioni internazionali:

• Department of Chemistry and Biochemsitry, University of California, USA (Prof. J. K. Gimzewski)
• Department of Chemistry & Biochemistry, UCLA, USA (Prof. James Heath)
• Los Alamos National Laboratory, New Mexico (Prof. Morton Bradbury)
• Stanford University, Palo Alto California, USA (Prof. O. Jardestky and Prof. H. McConnell)
• Fels Institute for Cancer & Molecular Biology, Temple University, Philadelphia, USA (Prof. Carlo Croce)
• Department of Cell Biology, Medical School, Massachussettes University, Worcester, USA (Prof. Gary Stein)
• Center for Advanced Biotechnology, Boston University, USA (Prof. Charles Cantor)
• School of Medicine, Philadelphia, USA (Prof. Carlo Croce)
• Molecular Devices Corporation, Menlo Park, California, USA (Prof. Hardy McConnell)
• AT&T Bell Laboratories, Murray Hill, New Jersey, USA (Prof. F. Capasso);
• Department of Chemistry, Division of Chemical Enzymology, M.V. Lomonosov Moscow State University, Moscow, Russia (Prof. S. Vorfolomeev)
• Department of Bioengineering, M.V. Lomonosov Moscow State University, Prof. M. Kirpichnikov, Ministery of Science and Technology, Russia Federation and now Vice-Rector)
• Institute of Crystallography, Russian Academy of Sciences (Prof. M. Kovalchuck)
• Institute of General Physics, Russian Academy of Sciences, Moscow, Russia (Prof. A. Prokorov, Nobel prize winner)
• Centre of "Bioengineering", Russian Academy of Sciences, Moscow, Russia (Prof. Konstantin Skryabin)
• Bijvoet Center, Utrecht University, The Netherlands (Prof. Kaptein)
• Biozentrum, Switzerland, (Prof. Kurt Wuthrich, Nobel prize winner)
• Tokyo University, Japan, (Prof. Aisawa)
• Erato Project, J.R.D.C., Tsukuba, Japan, (Prof. K. Nagayama)
• Department of Biochemistry, University of Saarlandes, Saarbrucken, Germany (Prof. Rita Bernhardt)
• Marburg University, Germany (Prof. Norbert Hampp)
• Bristol University, United Kingdom, (Prof. Jason Riley)
• Cambridge University, United Kingdom, (Prof. Mark Welland)
• European Synchrotron Radiation Facilities (ESRF), Grenoble, France, (Prof. Christian Riekel)
• Harvard Institute of Proteomics, Boston, USA (Prof. Joshua LaBaer)

All'interno di queste cooperazioni, diversi dottorandi (Dr. Catasti alla Davis, Dr. Gavazzo alla Worchester, Dr. Carrara a Palo Alto, Dr. Vergani a Philadelphia, Dr. Adami e Dr. Sartore a Menlo Park e Murray Hill, Dr. Mariani a Utrecht, Dr. Pechkova a ESRF) hanno trascorso diversi mesi per stage.
Allo stesso tempo, diversi ricercatori stranieri, provenienti dagli istituti sopramenzionati hanno effettuato negli anni scorsi, e tuttora effettuano, stage a breve e medio termine (oltre 40 negli anni passati)