How Iron Makes Silica Nanoparticles Biodegradable | Chemical & Engineering News
 
 
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Volume 90 Issue 34 | p. 28 | Concentrates
Issue Date: August 20, 2012

How Iron Makes Silica Nanoparticles Biodegradable

Doping nanosized silica with iron(III) makes the persistent particles biodegradable
Department: Science & Technology
News Channels: Materials SCENE, JACS In C&EN, Biological SCENE, Nano SCENE
Keywords: nanotechnology, drug delivery, nanomedicine, silica, 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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