"If you want a sea change, you want a new class, " he added, because the cancer cells get smart and develop resistance to the older drugs.

WSJ: New Drugs Slow a Fast-Spreading Cancer

Another approach, now being tested by Millennium Pharmaceuticals and, separately, by Medarex, is to develop smart antibodies that help destroy prostate cancer cells.

FORBES: On The Cover/Top Stories

It wowed attendees at the Frankfurt Motor Show last year with the transparent solar cells in the roof of the Smart Forvision concept.

FORBES: What The Smart Forstars Concept Car Says About The Company That Created It

From wind and solar, to waste and biomass to energy, fuel cells, co-generation, natural gas, and smart grid, speakers and attendees discussed a diverse portfolio of advanced energy technologies that are being developed and deployed in Ohio.

FORBES: The Business of Advanced Energy

"These results open the potential for visibly transparent polymer solar cells as add-on components of portable electronics, smart windows and building-integrated photovoltaics and in other applications, " said study leader Yang Yang, a UCLA professor of materials science and engineering, who also is director of the Nano Renewable Energy Center at California NanoSystems Institute (CNSI).

ENGADGET: UCLA creates transparent solar cell, dreams of current generating windows