Scientists Turn Cockroaches into Superbugs to Help Rescuers in Disaster Sites

A Madagascar hissing cockroach is pictured in this photo provided by the San Francisco Zoo. | REUTERS
A Madagascar hissing cockroach is pictured in this photo provided by the San Francisco Zoo. | REUTERS
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Scientists Turn Cockroaches into Superbugs to Help Rescuers in Disaster Sites

A Madagascar hissing cockroach is pictured in this photo provided by the San Francisco Zoo. | REUTERS
A Madagascar hissing cockroach is pictured in this photo provided by the San Francisco Zoo. | REUTERS

Cockroaches are known to infiltrate homes through the tiniest of gaps, and this innate ability now has engineers in Singapore working to turn the pesky insect into an ally of rescuers at disaster sites.

One variety of the insect, in particular, has the team at Nanyang Technological University (NTU) excited – the Madagascar hissing cockroach. On average, an adult is 6cm long, 2cm longer than the local variety.

The species is large enough for associate professor Hirotaka Sato and his team at the school of mechanical and aerospace engineering, to equip the bug with a 5.5g “backpack” consisting of several sensors, including those that can warn of the presence of gasses such as carbon dioxide.

The cyborg bugs also carry a small infrared camera that can detect life by picking up temperature signatures. The idea is to release a team of them at a disaster site.

Prof. Sato’s research, which started four years ago, is being conducted in partnership with Singapore’s Home Team Science and Technology Agency (HTX) and engineering firm Klass Engineering and Solutions.



Latest Tests Show Seine Water Quality Was Substandard When Paris Mayor Took a Dip

 Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
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Latest Tests Show Seine Water Quality Was Substandard When Paris Mayor Took a Dip

 Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)

Tests results released Friday showed the water quality in the River Seine was slightly below the standards needed to authorize swimming — just as the Paris Olympics start.

Heavy rain during the opening ceremony revived concerns over whether the long-polluted waterway will be clean enough to host swimming competitions, since water quality is deeply linked with the weather in the French capital.

Paris Mayor Anne Hidalgo took a highly publicized dip last week in a bid to ease fears. The Seine will be used for marathon swimming and triathlon.

Daily water quality tests measure levels of fecal bacteria known as E. coli.

Tests by monitoring group Eau de Paris show that at the Bras Marie, E. coli levels were then above the safe limit of 900 colony-forming units per 100 milliliters determined by European rules on June 17, when the mayor took a dip.

The site reached a value of 985 on the day the mayor swam with Paris 2024 chief Tony Estanguet and the top government official for the Paris region, Marc Guillaume, joined her, along with swimmers from local swimming clubs.

At two other measuring points further downstream, the results were below the threshold.

The statement by Paris City Hall and the prefecture of the Paris region noted that water quality last week was in line with European rules six days out of seven on the site which is to host the Olympic swimming competitions.

It noted that "the flow of the Seine is highly unstable due to regular rainfall episodes and remains more than twice the usual flow in summer," explaining fluctuating test results.

Swimming in the Seine has been banned for over a century. Since 2015, organizers have invested $1.5 billion to prepare the Seine for the Olympics and to ensure Parisians have a cleaner river after the Games. The plan included constructing a giant underground water storage basin in central Paris, renovating sewer infrastructure, and upgrading wastewater treatment plants.