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Stem cell identity in culture may strongly depend on the cellular microenvironment

Identification, isolation and large scale culture of stem cells for potential medical applications is a major challenge in cell biology.

26 Apr 2007

New tool to 'freeze' crime scene memories

University of Portsmouth scientists have developed a powerful new tool that 'freezes' the memory of crime scenes in the minds of witnesses.

26 Apr 2007

Teaching about evolution in a biomedical context

Three of America's best known voices in the debate about evolution in the teaching of science will meet to discuss the issue on Sunday, April 29, 2007 in Washington, DC.

26 Apr 2007

Important step towards a spatially and temporally quantifiable model of the cell

Cell membranes are like two-dimensional fluids whose molecules are distributed evenly through lateral diffusion.

26 Apr 2007

Study of planarians offers insight into germ cell development

The planarian is not as well known as other, more widely used subjects of scientific study , model creatures such as the fruit fly, nematode or mouse.

25 Apr 2007

Major revolution in human regenerative medicine

Findings described in a new study by Stanford scientists may be the first step toward a major revolution in human regenerative medicine,a future where advanced organ damage can be repaired by the body itself.

25 Apr 2007

Can a taste for poison drive speciation?

The endless struggle for survival in nature inevitably boils down to finding food and eluding predators.

25 Apr 2007

Similar brain chemicals influence aggression in fruit flies and humans

Serotonin is a major signaling chemical in the brain, and it has long been thought to be involved in aggressive behavior in a wide variety of animals as well as in humans.

24 Apr 2007

Nanoparticle-based sensors sniff out and identify proteins

A team of scientists from the University of Massachusetts Amherst have created a kind of molecular nose that uses nanoparticle-based sensors to sniff out and identify proteins.

24 Apr 2007

Novel two-step mechanism ensures that all cilia beat in unison

Cilia, tiny hair-like structures that propel mucus out of airways, have to agree on the direction of the fluid flow to get things moving. Researchers at the Salk Institute for Biological Studies discovered a novel two-step mechanism that ensures that all cilia beat in unison.

24 Apr 2007

Gold nanoparticles for early detection of cancer

By attaching gold nanoparticles - like tiny balls or rods- to cancer cells, earlier detection will be possible.

24 Apr 2007

NanoFrontiers: Visions for the Future of Nanotechnology

Controlling the properties and behavior of matter at the smallest scale, in effect, "domesticating atoms",can help to overcome some of the world's biggest challenges, concludes a new report on how diverse experts view the future of nanotechnology.

24 Apr 2007

Nanotechnology and biology for healing

Imagine a world where damaged organs in your body, kidneys, liver, heart, can be stimulated to heal themselves.

24 Apr 2007

Leptin-based products may offer kids protection from obesity

Infant formula and other baby foods that provide permanent protection from obesity and diabetes into adulthood could be on shop shelves soon, reports Lisa Melton in Chemistry & Industry, the magazine of the SCI.

24 Apr 2007

Key to understanding all biological processes is recognition

A human body has more than 10 to the power of 27 molecules with about one hundred thousand different shapes and functions.

24 Apr 2007

Origin of the brain lies in a worm

The rise of the central nervous system (CNS) in animal evolution has puzzled scientists for centuries.

21 Apr 2007

Significant genetic differences found in three types of chimpanzee

The largest study to date of genetic variation among chimpanzees has found that the traditional, geography-based sorting of chimps into three populations,western, central and eastern, is underpinned by significant genetic differences, two to three times greater than the variation between the most different human populations.

21 Apr 2007