Tag Archives: nanoparticles

UCLA researchers toughen glass using nanoparticles

Process could be useful for applications in manufacturing and architecture

UCLA mechanical engineers and materials scientists have developed a process that uses nanoparticles to strengthen the atomic structure of glass. The result is a product that’s at least five times tougher than any glass currently available. (more…)

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How nanoscience will improve our health and lives in the coming years

Targeted medicine deliveries and increased energy efficiency are just two of many ways

Nanoscience research involves molecules that are only 1/100th the size of cancer cells and that have the potential to profoundly improve the quality of our health and our lives. Now nine prominent nanoscientists look ahead to what we can expect in the coming decade, and conclude that nanoscience is poised to make important contributions in many areas, including health care, electronics, energy, food and water. (more…)

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Engineers Invent a Bubble-Pen to Write with Nanoparticles

AUSTIN, Texas — Researchers in the Cockrell School of Engineering at The University of Texas at Austin have solved a problem in micro- and nanofabrication — how to quickly, gently and precisely handle tiny particles — that will allow researchers to more easily build tiny machines, biomedical sensors, optical computers, solar panels and other devices. (more…)

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Unexpected Water Explains Surface Chemistry of Nanocrystals

Berkeley Lab Scientists Answer Questions of How Charged Ligands Balance on Surface of Colloidal Nanoparticles

Danylo Zherebetskyy and his colleagues at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) found unexpected traces of water in semiconducting nanocrystals. (more…)

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Researchers Find Gold Nanoparticles Capable of ‘Unzipping’ DNA

New research from North Carolina State University finds that gold nanoparticles with a slight positive charge work collectively to unravel DNA’s double helix. This finding has ramifications for gene therapy research and the emerging field of DNA-based electronics.

“We began this work with the goal of improving methods of packaging genetic material for use in gene therapy,” says Dr. Anatoli Melechko, an associate professor of materials science and engineering at NC State and co-author of a paper describing the research. Gene therapy is an approach for addressing certain medical conditions by modifying the DNA in relevant cells. (more…)

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Berkeley Lab Scientists Develop New Tool for the Study of Spatial Patterns in Living Cells

*Golden Membranes Pave the Way for a Better Understanding of Cancer and the Immune System*

Football has often been called “a game of inches,” but biology is a game of nanometers, where spatial differences of only a few nanometers can determine the fate of a cell – whether it lives or dies, remains normal or turns cancerous. Scientists with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a new and better way to study the impact of spatial patterns on living cells.

Berkeley Lab chemist Jay Groves led a study in which artificial membranes made up of a fluid bilayer of lipid molecules were embedded with fixed arrays of gold nanoparticles to control the spacing of proteins and other cellular molecules placed on the membranes. This provided the researchers with an unprecedented opportunity to study how the spatial patterns of chemical and physical properties on membrane surfaces influence the behavior of cells. (more…)

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“Fool’s Gold” from The Deep is Fertilizer for Ocean Life

*Pyrite nanoparticles from hydrothermal vents are a rich source of iron in the deep sea*

Similar to humans, the bacteria and tiny plants living in the ocean need iron for energy and growth. But their situation is quite different from ours–for one, they can’t turn to natural iron sources like leafy greens or red meat for a pick-me-up.

So, from where does their iron come? (more…)

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