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Researchers at IBM create triangulene, a magnetized molecule with unknown potential

IBM scientists use microscopy methods to create an “impossible” carbon molecule, triangulene. Triangulene is made of 6 carbon rings with two unpaired electrons roaming about. While triangulene has not been fully characterized at this point, the unpaired electrons have aligned spin, making this molecule a prime candidate for applications in quantum computing and other fields. Continue reading Researchers at IBM create triangulene, a magnetized molecule with unknown potential

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Just a Phase

The patterns seen here are called interference rings, or Newton’s rings, and are generated when light waves reflect off of two glass surfaces that are in very close proximity to each other, such as a glass microscope slide and a cover slip. Imperfections in the glass cause the waves to be reflected at different points of the wave. Where you see bright rings, two waves … Continue reading Just a Phase

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The Light of Elendil in Shelob’s Lair

By Andrew Wong, a second year graduate student in the Applied Physics program at Harvard University.       The increase in global energy demand and subsequent carbon dioxide emissions has driven advancements in renewable energy generation technologies such as wind turbines and solar cells. However, these technologies are inherently intermittent, and require robust energy storage devices. Inexpensive, large-scale energy storage systems such as aqueous … Continue reading The Light of Elendil in Shelob’s Lair

A 5000x magnification view of diatoms, a type of tiny algae. (Credit: from Jim Mikulak (The English Wikipedia) via Wikimedia Commons.)

Algae: Applications in Removing Arsenic and Beyond

Scientists at Zhejiang University have recently published an improved method for removing arsenic from drinking water, which relies on chemically modifying the shells of a type of algae, called diatoms, to make the shells efficient “sponges” for soaking up arsenic. Modified diatom shells are unique in that they can be widely manipulated for applications in fields as diverse as medicine and materials science. Despite their … Continue reading Algae: Applications in Removing Arsenic and Beyond

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Why the blue LED should light up your life (and won a Nobel Prize)

What do you think of when you hear the phrase ‘green technology’? Do solar panels, wind turbines, and electric cars come to mind? What about light-emitting diodes (LEDs)? Unlike many costly green technologies, LEDs are accessible to the majority of Individuals who want to help the environment and save money. Using an LED for 50,000 hours of white-light home lighting (i.e. LED light bulbs for … Continue reading Why the blue LED should light up your life (and won a Nobel Prize)

Cash register receipts. Photograph by Hey Paul Studios (Flickr).

Cash Register Receipts and Clean Hands

Bisphenol A (BPA) is a chemical compound that has been used in the production of plastics, including cell phones, contact lenses, and food storage containers, for over 50 years. Scientists have recently shown that the BPA found on cash register receipts (to help develop the printed text) may be a significant source of BPA exposure, thanks to our generous use of hand sanitizers and other skin care products. That’s because hand sanitizers contain ingredients that dissolve BPA, and also increase the skin’s ability to absorb the chemical. Although further studies and larger sample sizes will be necessary to conclude whether BPA is a true hazard, this finding suggests that certain populations, such as cashiers, may be exposed to higher than average amounts of BPA on a regular basis – and keeping hands clean may not be helping. Continue reading Cash Register Receipts and Clean Hands

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Light-Powered Construction of Valuable Molecules from Simple Chemical Building Blocks

Two groups of researchers have recently reported a new light-powered method in which readily available chemical building blocks are coupled to produce useful complex molecules that cannot be easily found or made. Because these metal-catalyzed reactions require only visible light and mild conditions, they could be incredibly useful new methods for the cheap and environmentally friendly synthesis of pharmaceuticals and other valuable materials.  Introduction Everything … Continue reading Light-Powered Construction of Valuable Molecules from Simple Chemical Building Blocks