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Top 10 Food Additives to Avoid
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Food additives have been used for centuries to enhance the appearance and flavor of food and prolong shelf life. But do these food additives really “add” any value to your food?
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Materials science
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Materials science is an interdisciplinary field involving the properties of matter and its applications to various areas of science and engineering.
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A simple separation solution for carbon nanotubes
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Single-walled carbon nanotubes (SWCNTs) exist in both metallic and semiconducting forms, but many of the applications of the materials require either one type or the other, making separation increasingly important. Until now, separation has often required techniques that can damage the samples and has only been achievable at the scale of micrograms. This makes purified nanotubes very expensive.
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Water repellent polymer slows down drug delivery
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In looking for potential uses for highly water-repellent, superhydrophobic materials, scientists have mainly focused on obvious applications such as water-proof clothing and self-cleaning surfaces. But now US scientists have a new idea: using them to deliver drugs.
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The world's first magnetic soap
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Researchers have created a liquid surfactant that can be moved by a magnet. The discovery opens the way to soaps and detergents which could be directed to a specific point or removed from a mixture by applying an external magnetic field.
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Leaky graphene oxide lets water pour through
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UK researchers have created a graphene-based membrane that allows water through but not helium. The discovery of such membranes might ultimately have applications in a whole range of industries including effective separation of hydrogen from liquid or gaseous mixtures for fuel production.
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Calculations reveal carbon-carbon quadruple bond
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C2's two carbon atoms aren't joined by a double bond as usually thought, or even a triple bond, but in fact a quadruple bond. So say Sason Shaik at the Hebrew University of Jerusalem, Israel, and colleagues, who have assessed the fourth bond's energy.
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Chemical compound
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A chemical compound is a chemical substance consisting of two or more different chemically bonded chemical elements, with a fixed ratio determining the composition.
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