Issue Date: August 20, 2012
How Iron Makes Silica Nanoparticles Biodegradable
Adding a pinch of iron to silica nanoparticles makes the material degrade more rapidly, chemists at the University of California, San Diego, report (J. Am. Chem. Soc., DOI: 10.1021/ja3036114). The discovery could pave the way to biodegradable forms of silica for ultrasound contrast imaging or drug delivery. Silica’s stability makes it problematic for medical applications. Tiny silica particles can cause health hazards by accumulating in the . . .
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