DNA is held together by hydrophobic forces

Researchers have disproved the prevailing theory of how DNA binds itself. It is not, as is generally believed, hydrogen bonds which bind together the 2 sides of the DNA structure. Instead, water is the key. The discovery opens doors for new understanding in research in medicine and life sciences.

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Researchers investigate key component in bacteria

A protective protein that detects newly-made incomplete protein chains in higher cells is found to have a relative in bacteria. There, the protein also plays a central role in quality control which ensures that defective proteins are degraded. The functional mechanism of these Rqc2 proteins must therefore have already existed several billion years ago in the so-called last universal common ancestor. Scientists have experimentally investigated the bacterial Rqc2 relative's function.

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Green light given to fruit fly's color preference

Researchers have made two unexpected discoveries. First, they found that, given a choice, fruit flies are drawn to green light early in the morning and late in the afternoon, when they are most active, and to red, or dim light, in midday, when like many humans, they slow down to eat and perhaps take a siesta.

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Using unconventional materials, like ice and eggshells, as scaffolds to grow tissues

Researchers explore recent efforts to use everyday materials like ice, paper, and spinach as tissue scaffolds. These unconventional materials, they argue, are more functional, more sustainable, and less expensive, as well as being available around the globe and applicable to many areas of biomedical research.

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Drug delivery: Thermo-responsive protein hydrogel

Bio-engineering researchers have created a biocompatible, protein-based hydrogel that could serve as a drug delivery system durable enough to survive in the body for more than two weeks while providing sustained medication release. The research advances an area of biochemistry that is also critical to tissue engineering and regenerative medicine. Protein hydrogels are more biocompatible than synthetic ones and do not require potentially toxic chemical crosslinkers.

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