Organic carbon from Mars, but not biological

(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules have previously ...

Turning viruses into molecular Legos

Researchers at the University of California, Berkeley, have turned a benign virus into an engineering tool for assembling structures that mimic collagen, one of the most important structural proteins in nature. The process ...

'Perfect plastic' created

(PhysOrg.com) -- Researchers at the University of Leeds and Durham University have solved a long-standing problem that could revolutionize the way new plastics are developed.

Scientists construct synthetic proteins that sustain life

(PhysOrg.com) -- In a groundbreaking achievement that could help scientists "build" new biological systems, Princeton University scientists have constructed for the first time artificial proteins that enable the growth of ...

'Goldilocks Zone' may go colder than previously thought

(PhysOrg.com) -- The survival of life on Earth is possible only within a relatively narrow temperature range known as the "Goldilocks Zone," which ranges from around 0 to 100°C. In many ecosystems life is limited by cold ...

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Macromolecule

A macromolecule is a very large molecule commonly created by some form of polymerization. In biochemistry, the term is applied to the four conventional biopolymers (nucleic acids, proteins, carbohydrates, and lipids), as well as non-polymeric molecules with large molecular mass such as macrocycles. The constituent molecules from which macromolecules are assembled are called monomers (mono=single, meros=part).

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