Piezochromic luminescence of amide and ester derivatives of tetraphenylpyrene—role of amide hydrogen bonds in sensitive piezochromic response. Amide-substituted tetraphenylpyrene show sensitive and reversible piezochromic response to applied pressure. The team behind this research say this arises from the hydrogen bond-directed columnar assemblies. Piezochromic luminescent materials could find use as optical recording and strain- or pressure-sensing materials. (J. Mater. Chem., 2011, DOI:10.1039/C0JM03950K, Advanced Article)
One dimensional Si/Sn – based nanowires and nanotubes for lithium-ion energy storage materials. One dimensional Si/Sn nanowires and nanotubes have great potential to achieve high energy density and long cycle life for next generation advanced energy storage applications. In this Hot Feature Article, Yi Cui, Jaephil Cho and coworkers discuss recent progress and future challenges for Si/Ge/Sn based nanowires and nanotubes as high capacity anode materials. (J. Mater. Chem., 2011, Advance Article DOI:10.1039/C0JM03842C)
Nonclustered magnetite nanoparticle encapsulated biodegradable polymeric micelles with enhanced properties for in vivo tumor imaging. Folate-encoded and small-sized polymeric micelles loaded with nonclustered SPIO show high MRI sensitivity and targeted delivery for effective detection of human hepatoma say a team of scientists from China and the USA. (J. Mater. Chem., 2011, DOI:10.1039/C0JM03783D Advanced Article)
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