Water has new molecular properties: Scientists
New York, Aug 14 : US scientists have predicted a fundamental asymmetry in the mechanism of water, which had previously gone unnoticed.
For nearly a century, it was thought that the mechanisms by which water transports the H+ and OH ions were mirror images of each other -- identical in all ways except for directions of the hydrogen bonds involved in the process.
Water consists of one oxygen atom and two hydrogen atoms, but the hydrogen atoms are relatively mobile and can hop from one molecule to another, and it is this hopping that renders the two ionic species so mobile in water.
Prior research had indicated that two main geometrical arrangements of hydrogen bonds (one associated with each ion) facilitate the hops.
But the study found that one of the arrangements led to significantly slower hops for OH than for H+ at four degrees Celsius.
"The new finding is quite surprising and may enable deeper understanding of water's properties as well as its role as a fluid in many of nature's phenomena," said lead author Alexej Jerschow, Professor at the New York University (NYU).
If this asymmetry predicted is correct, it could be exploited in different applications by tailoring a system to favour one ion over the other, the researchers said.
In the study, detailed in the journal Physical Review Letters, the team involved cooling water down to its so-called temperature of maximum density, where the asymmetry is expected to be most strongly manifest, thereby allowing it to be carefully detected.
By cooling water down to this temperature, the team employed nuclear magnetic resonance methods (the same type of approach is medically in magnetic resonance imaging) to show that the difference in lifetimes of the two ions reaches a maximum value (the greater the lifetime, the slower the transport).
By accentuating the difference in lifetimes, the asymmetry became clear.
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Karnataka Milk Federation enters Delhi-NCR, offers competitive pricing on Nandini products
New Delhi, Nov 21: Karnataka Chief Minister Siddaramaiah on Thursday launched the Karnataka Milk Federation's (KMF) Nandini brand milk products in the Delhi-NCR market, pricing them marginally lower than competitors to gain a foothold in the region.
The cooperative will retail four cow milk variants, curd, and buttermilk from Friday, with competitive pricing that undercuts established players like Mother Dairy and Amul.
Cow milk will be sold at Rs 56 per litre, full Cream Milk at Rs 67 per litre, Standardised Milk at Rs 61 per litre, Toned Milk at Rs 55 per litre, and curd at Rs 74 per kg.
"We have surplus milk in the state. KMF along with Mandya Milk Union will market surplus milk of 3-4 lakh litres per day in Delhi-NCR," Siddaramaiah told reporters after launching the products.
The federation currently collects 100 lakh litres of milk daily, with local consumption at 60 lakh litres, leaving a surplus of 40 lakh litres for expansion into new markets.
However, the Chief Minister acknowledged the challenges of transporting milk over 2,500 km, which takes 50-54 hours.
There is a need to find new markets for surplus milk and gradually the KMF should be able to sell 5-6 lakh litres per day in Delhi-NCR, he added.
KMF Chairman LBP Bheemanaik assured that milk quality would be maintained during transit.
The federation has already partnered with 40 dealers in the Delhi-NCR region to facilitate sales, he added.
With a robust infrastructure of 26.76 lakh milk producers, 15,737 dairy cooperative societies, and 15 district milk unions, KMF has a turnover of Rs 25,000 crore and exports dairy products to over 25 countries.
State Animal Husbandry Minister K Venkatesh and Agriculture Minister N Cheluvarayaswamy were present at the product launch.
ದೇಶದ ಹಾಲು ಉತ್ಪಾದನೆಯಲ್ಲಿ ಗುಜರಾತ್ ಮೊದಲ ಸ್ಥಾನದಲ್ಲಿದ್ದರೆ, ಕರ್ನಾಟಕ ಎರಡನೇ ಸ್ಥಾನದಲ್ಲಿದೆ.
— Siddaramaiah (@siddaramaiah) November 21, 2024
ದೆಹಲಿ ನಗರದಲ್ಲಿ ಕೆ.ಎಂ.ಎಫ್ ಮತ್ತು ಮಂಡ್ಯ ಹಾಲು ಒಕ್ಕೂಟಗಳು ಸೇರಿಕೊಂಡು ವಿವಿಧ ಶ್ರೇಣಿಯ ಹಾಲನ್ನು ಮಾರುಕಟ್ಟೆಗೆ ಬಿಡುಗಡೆ ಮಾಡಿವೆ. ದೆಹಲಿಯ ನಿವಾಸಿಗಳಿಂದ ನಂದಿನಿ ಉತ್ಪನ್ನಗಳಿಗೆ ಅತ್ಯುತ್ತಮ ಸ್ಪಂದನೆ ದೊರೆಯಲಿದೆ ಎಂಬ ವಿಶ್ವಾಸ ನನಗಿದೆ.… pic.twitter.com/yUmTQknGzD
