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Last updated on April 17, 2014 at 11:49 EDT

Latest Pedro Alvarez Stories

Ethanol Blends Can Be Dangerous
2013-12-14 04:19:09

redOrbit Staff & Wire Reports - Your Universe Online Adding more ethanol to fuel with the goal of reducing air pollution carries a hidden risk that toxic - or even explosive - gases may make their way into buildings, particularly those nearby with cracked foundations, Rice University researchers reported this week in the journal Environmental Science and Technology. Vapors that rise from contaminated groundwater can be sucked inside, and trapped pools of methane could ignite and...

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2010-07-29 10:48:21

Rice study give pros, cons of nanotech-enhanced building materials Nanomaterials are poised for widespread use in the construction industry, where they can offer significant advantages for a variety of applications ranging from making more durable concrete to self-cleaning windows. But widespread use in building materials comes with potential environmental and health risks when those materials are thrown away. Those are the conclusions of a new study published by Rice University engineering...

2009-02-02 10:19:02

Quantum dots have the potential to bring many good things into the world: efficient solar power, targeted gene and drug delivery, solid-state lighting and advances in biomedical imaging among them. But they may pose hazards as well.A team of Rice researchers has been working to discover the health risks of quantum dots, molecule-sized semiconducting nanocrystals that are generally composed of heavy metals surrounded by an organic shell.Pedro Alvarez, Rice's George R. Brown Professor and chair...

2007-01-13 03:00:25

By Silva, M L B Da; Daprato, R C; Gomez, D E; Hughes, J B; Et al ABSTRACT:Two 11.7-m^sup 3^ experimental controlled release systems (ECRS), packed with sandy model aquifer material and amended with tetrachloroethene (PCE) dense nonaqueous phase liquid (DNAPL) source zone, were operated in parallel with identical flow regimes and electron donor amendments. Hydrogen Releasing Compound (Regenesis Bioremediation Products, Inc., San Clemente, California), and later dissolved lactate, served as...