Dr Jaime Castillo from the Technical University of Denmark spoke to us about bionanotechnology. Jaime recently spoke at the Spring 2011 Materials Today Virtual Conference. To view his talk visit www.materialstoday.com/virtualconference.

Dr Lei Zhai from the University of Central Florida spoke to us about his work on conjugated polymers and CNTs. Lei recently spoke at the Spring 2011 Materials Today Virtual Conference. To view his talk visit www.materialstoday.com/virtualconference.

Prof Yury Gogotsi from Drexel University spoke to us about his work on carbon nanomaterials and the potential for application. Yury will be speaking at the Diamond 2011 conference; don't forget to visit his talk to find out more about his work.

This week we spoke to Prof Zhong Lin Wang from the Georgia Institute of Technology about energy harvesting using nanomaterials. ZL is the editor of the new journal, Nano Energy, and will be speaking at this year's Nano Today conference in December.

This week we spoke to Dr Andrea Ferrari from Cambridge University about his work on carbon nanomaterials and Raman spectroscopy. Andrea will be speaking at the Diamond 2011 conference; visit his talk to find out more about his work.

This week we preview the June issue of Materials Today by talking to Prof Michael Romalis from Princeton University about his work on atomic magnetometers. Our June issue focusses on materials characterization, and will be available soon.

This week we talk to Prof Christoph Weder from the University of Fribourg about healing polymers using ultraviolet light.

This week we talk to Dr Suwan Jayasinghe about biosprays in regenerative biology. Suwan is the guest editor of the May issue of Materials Today: for more information on Suwan's work, check out his review in the May edition.

This week we talk to Prof Brian LeRoy about electron microscopy and charge puddles. Brian's Phys Rev B paper on the charge puddles in graphene is now available, as is his Nature Materials paper on STM of graphene on boron nitride.

This week we talk to Prof Richard Rabbitt from the University of Utah about the photostimulation of cells.