Drug Delivery

This article describes the concept behind the challenge...

http://www.med.umich.edu/opm/newspage/2005/nanoparticles.htm

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Univeristy of Wisconsin - http://mrsec.wisc.edu/Edetc/LEGO/

X-Ray Diffractometer

Paper on Basics of X-ray Diffractometry:
http://www.thermo.com/eThermo/CMA/PDFs/Product/productPDF_11602.pdf

What is X-ray diffraction: http://dept.physics.upenn.edu/~heiney/talks/hires/whatis.html