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Tag "Chemistry"

Killer Graphene: using pencil lead to kill bacteria

Killer Graphene: using pencil lead to kill bacteria

You have most likely seen them before: surfaces such as coatings on medical devices that claim to have anti-bacterial properties, killing germs that land on them. Current methods for creating anti-bacterial surface involve the use of either transition metals, such

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The Poison Squad: One chemist’s crusade for food safety

The Poison Squad: One chemist’s crusade for food safety

Once known as “Dr. Wiley’s Law,” the Pure Food and Drug Act of 1906 was the first of many regulations that advocated for food safety and consumer protection in response to the use of harmful food preservatives—in­cluding formaldehyde, borax, copper,

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Follow the Energy, See Where it Goes: Investigating the energetic expenditures of embryonic cleavage divisions

Follow the Energy, See Where it Goes: Investigating the energetic expenditures of embryonic cleavage divisions

Energy is a tricky concept. The term is bandied around within and without science; even among scientists, “ener­gy” takes different meanings in different contexts. Though it is far from straight­forward to define what energy actually is, more important is what

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Harvesting a Wide Range of Light: Computational chemistry & organic synthesis create a new light-absorbing molecule

Harvesting a Wide Range of Light: Computational chemistry & organic synthesis create a new light-absorbing molecule

Nothing is perfect, but often, nature comes pretty close. Photosynthesis, the process that converts light into electrochemical energy, is something researchers want to emulate. It happens to be the single biochemical process that sustains life on Earth, not least because

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Holding onto Energy: New insights into lithium sulfur batteries

Holding onto Energy: New insights into lithium sulfur batteries

Batteries have revolutionized modern life. Now, there is a push for bat­teries to undergo their own revolution. The electronics we use on a dai­ly basis run on lithium-ion batteries, but a new battery with lower cost and higher energy density

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Cleaner Catalysts: Saving the world, one nanoparticle at a time

Cleaner Catalysts: Saving the world, one nanoparticle at a time

From catalytic converters found in cars to the enzymes that catalyze life processes in our bodies, catalysts and catalysis play a large role in shaping our daily lives. Though these chemicals are the reason our cars work, they can be

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A Breath of Fresh Air on the Design of Lithium-Air Batteries

A Breath of Fresh Air on the Design of Lithium-Air Batteries

We’ve all been there before: waking up at the crack of dawn, taking a sip of coffee, and trudging all the way to class or work only to realize that our cell phone never got charged last night. Blame it

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Four-Dimensional Sequencing

Four-Dimensional Sequencing

Researchers study organisms’ genomes using a process called ribonucleic acid sequencing (RNA-seq), which gives a holistic picture of what genes that organism’s cells are expressing.  Recently, Yale PhD candidate Jeremy Schofield and colleagues working in Associate Professor Matthew Simon’s lab

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It’s Getting Hot in Here

It’s Getting Hot in Here

Global warming takes its toll on sea turtles Sea turtles are the latest species affected by the rising temperatures characteristic of global warming. Researchers at the National Oceanic and Atmospheric Administration (NOAA) fisheries have shown that the rising ocean temperatures

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Q&A: How Cold Can Water Get?

Q&A: How Cold Can Water Get?

Way colder than you’d think! In fact, water doesn’t always freeze when the temperature reaches zero degrees Celsius, the value regularly cited as the freezing point of water. Under certain conditions, water can undergo “supercooling” and exist in a liquid

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