<p>
Tiny dimensions, great expectations. That&rsquo;s nanoscience in a nutshell. Its underlying principle is a revolution in the way we view matter itself. Rather than working with existing materials, nanoscientists aim to create novel materials and structures from the bottom up, out of the tiniest building blocks available - atom by atom, molecule by molecule. Hence the prefix &ldquo;nano,&rdquo; (from the Greek for dwarf), which means one millionth of a millimeter or roughly one hundred-thousandth the width of a human hair.</p>