nanomaterial

Nanomaterial spurs cartilage growth

Evanston, Ill. -- Northwestern University scientists say they have become the first to design a bioactive nanomaterial that promotes the growth of new cartilage in vivo.

The researchers, led by Professor Samuel Stupp, said the nanomaterial spurs new cartilage growth without expensive growth factors by activating bone marrow stem cells and producing natural cartilage. No conventional therapy can do this, Strupp said.

"Unlike bone, cartilage does not grow back, and therefore clinical strategies to regenerate this tissue are of great interest," said Stupp, director of the university's Institute for BioNanotechnology in Medicine.

Israeli scientists create new nanomaterial

Tel Aviv, Israel -- Israeli scientists say they've created a nanomaterial that may revolutionize solar panels, batteries and even be used as the basis for self-cleaning windows.

Tel Aviv University Professor Ehud Gazit, graduate student Lihi Adler-Abramovich and colleagues said they have developed a method to control the atoms and molecules of peptides so that they "grow" to resemble small forests of grass. The "peptide forests" repel dust and water.

"This is beautiful and protean research," Adler-Abramovich said. "It began as an attempt to find a new cure for Alzheimer's disease. To our surprise, it also had implications for electric cars, solar energy and construction."