Australasian Science: Australia's authority on science since 1938

Issues

Superbug Resistance to Antimicrobial Nanosilver

By Cindy Gunawan & Christopher P. Marquis

A group of widely-occurring bacteria has been able to overcome the antimicrobial activity of nanosilver upon prolonged exposure.

We are and always have been at constant war against pathogens, not only in extreme situations such as epidemics but also on a daily basis. Along the way we have encountered a vast number of antimicrobial agents, each with unique target microorganisms and potency. These antimicrobials range from natural forms of disinfectant, such as moulds and plant extracts, to more sophisticated engineered chemicals including antiviral drugs.

Fox Baiting in Tasmania: What’s at Risk?

By Matthew Marrison

With careful attention to the science and planning, targeting foxes in a wildlife-rich environment can be a success.

It’s first light in Tasmania, and across the island thousands of native animals are returning to daytime refuges following a night feeding in pastures and paddocks surrounding cities and towns. These fragmented landscapes, where agricultural land mixes with tendrils of remnant bushland, are rich in resources and attract a wide variety of native wildlife, often to the displeasure of farmers trying to protect crops from hungry wallabies and residents trying to sleep while unruly possums raid rubbish bins.

Such landscapes are also ideal habitat for foxes.