Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Detecting harmful molecules in the environment

4 July 2014

Detecting harmful molecules in the environment

Victoria University of Wellington researchers have developed a new technique that can detect environmental levels of oestrogen at the equivalent of detecting one pinch of salt in an olympic-sized swimming pool.

Work by Professor Ken McNatty from the School of Biological Sciences, Dr Justin Hodgkiss from the School of Chemical and Physical Sciences, and PhD students Shalen Kumar and Omar Alsager, has resulted in a tool that will add to knowledge about the presence of oestrogenic hormones in the environment—molecules with the potential to affect human and animal reproductive cycles.

“When oestrogen is in the wrong place at the wrong time, it can be harmful to living organisms including humans,” says Dr Hodgkiss.

“It is crucial to be aware if there’s oestrogen in the environment, especially as it is not uncommon for water in many countries, including New Zealand, Australia and the United Kingdom, to be recycled. We have no idea how much oestrogenic material is in there.”

Another concern, says Professor McNatty, is that the additives that increase plasticity in everyday items such as drink bottles, containers and rubbish bags, can accumulate over time and behave like oestrogen. But, he says, to measure these items repetitively and quickly is very expensive. “The question is, what is safe if you’re exposed to these additives for 30 years?”

Currently, the only way to measure the amount of oestrogen in water is to send a sample to a lab for analysis, which is expensive and takes time to get results says Professor McNatty. “With our new sensors, anyone in the field, such as a regional council officer or water board inspector, could add a sample to the test vial and if oestrogen is present, the sensor will change colour giving a yes or no answer in just a few minutes.”

Results from the first part of the research, focused on detecting oestrogen and supported by Viclink, Victoria’s commercialisation office, have been published in the international journal Biosensors and Bioelectronics.

The researchers will focus next on refining the sensitivity of the sensors to provide information on exactly how much oestrogen is present, and to expand the sensors to target other molecules.

“There are a wide range of applications for this versatile technology. Our research will provide an invaluable tool for further research into oestrogen, and other harmful molecules, in the environment,” says Dr Hodgkiss.

ENDS

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Sky City : Auckland Convention Centre Cost Jumps By A Fifth

SkyCity Entertainment Group, the casino and hotel operator, is in talks with the government on how to fund the increased cost of as much as $130 million to build an international convention centre in downtown Auckland, with further gambling concessions ruled out. The Auckland-based company has increased its estimate to build the centre to between $470 million and $530 million as the construction boom across the country drives up building costs and design changes add to the bill.
More>>

ALSO:

RMTU: Mediation Between Lyttelton Port And Union Fails

The Rail and Maritime Union (RMTU) has opted to continue its overtime ban indefinitely after mediation with the Lyttelton Port of Christchurch (LPC) failed to progress collective bargaining. More>>

Earlier:

Science Policy: Callaghan, NSC Funding Knocked In Submissions

Callaghan Innovation, which was last year allocated a budget of $566 million over four years to dish out research and development grants, and the National Science Challenges attracted criticism in submissions on the government’s draft national statement of science investment, with science funding largely seen as too fragmented. More>>

ALSO:

Scoop Business: Spark, Voda And Telstra To Lay New Trans-Tasman Cable

Spark New Zealand and Vodafone, New Zealand’s two dominant telecommunications providers, in partnership with Australian provider Telstra, will spend US$70 million building a trans-Tasman submarine cable to bolster broadband traffic between the neighbouring countries and the rest of the world. More>>

ALSO:

More:

Statistics: Current Account Deficit Widens

New Zealand's annual current account deficit was $6.1 billion (2.6 percent of GDP) for the year ended September 2014. This compares with a deficit of $5.8 billion (2.5 percent of GDP) for the year ended June 2014. More>>

ALSO:

Still In The Red: NZ Govt Shunts Out Surplus To 2016

The New Zealand government has pushed out its targeted return to surplus for a year as falling dairy prices and a low inflation environment has kept a lid on its rising tax take, but is still dangling a possible tax cut in 2017, the next election year and promising to try and achieve the surplus pledge on which it campaigned for election in September. More>>

ALSO:

Job Insecurity: Time For Jobs That Count In The Meat Industry

“Meat Workers face it all”, says Graham Cooke, Meat Workers Union National Secretary. “Seasonal work, dangerous jobs, casual and zero hours contracts, and increasing pressure on workers to join non-union individual agreements. More>>

ALSO:

Get More From Scoop

 
 
Standards New Zealand

Standards New Zealand
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news