feed info

36 articles from ScienceDaily

Vietnam farmers' poultry sales during outbreaks may increase virus transmission

Small-scale poultry farmers in Vietnam tend to respond to viral outbreaks of highly pathogenic avian influenza (HPAI) by rapidly selling their birds as a way to avoid financial loss, according to a new study. As these birds are commingled with other birds in markets and trading networks, this practice may increase the likelihood of widespread disease transmission.

How bacteria adhere to fiber in the gut

Researchers have revealed a new molecular mechanism by which bacteria adhere to cellulose fibers in the human gut. Thanks to two different binding modes, they can withstand the shear forces in the body.

The 'gold' in breast milk

Breast milk strengthens a child's immune system, supporting the intestinal flora. These facts are common knowledge. But how does this work? What are the molecular mechanisms behind this phenomenon? And why is this not possible the same way with bottle feeding? The reasons were unknown until a team recently discovered the role of alarmins.

Preventing infection, facilitating healing: New biomaterials from spider silk

New biomaterials reduce the risk of infection and facilitate the body's healing processes. These nanostructured materials are based on spider silk proteins. They prevent colonization by bacteria and fungi, but at the same time proactively assist in the regeneration of human tissue. They could be used for implants, wound dressings, prostheses, contact lenses, and other everyday aids.

The northern quoll: An amazingly versatile survivor?

The northern quoll, one of Australia's most adorable and endangered native carnivores, appears to be adapted to dramatically different landscapes -- which may be key to the species' survival. A new study that found similarities between northern quoll skulls across a 5000 kilometer range, which has raised hopes scientists will be able to cross-breed isolated populations.

Structural colors from cellulose-based polymers

A surface displays structural colors when light is reflected by tiny, regular structural elements in a transparent material. Researchers have now developed a method to make structural colors from cellulose-based polymers by using coated droplets that exist in a surrounding fluid -- so-called liquid marbles. The system readily responds to environmental changes, which makes it interesting for...

Giant nanomachine aids the immune system

In order to kill diseased cells, our immune system must first identify them. The so-called peptide-loading complex plays a key role in this process. A research team has analyzed this nanomachine in atomic detail.