Tuesday June 19, 2018
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This fibre material can sense odourless fuel leaks

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Image source: wikimedia.org

New York: A new type of fibre material developed by engineers for a handheld scanner can detect small traces of alkane fuel vapour, a valuable advancement. This could be an early-warning signal for leaks in an oil pipeline, an airliner, or for locating a terrorist’s explosive.

Alkane fuel is a key ingredient in combustible material such as gasoline, airplane fuel, oil — even a homemade bomb.

Currently, there are no small, portable chemical sensors to detect alkane fuel vapour because it is not chemically reactive. The conventional way to detect the odourless and colourless vapor is with a large oven-sized instrument in a lab.

“It’s not mobile and very heavy,” said one of the researchers Ling Zang, a professor at the University of Utah in the US.

“There’s no way it can be used in the field. Imagine trying to detect the leak from a gas valve or on the pipelines. You ought to have something portable,” Zang noted.

So Zang’s team developed a type of fibre composite that involves two nanofibres transferring electrons from one to the other.

“These are two materials that interact well together by having electrons transferring from one to another,” Ben Bunes, post-doctoral fellow at University of Utah, said.

“When an alkane is present, it sticks in between the two materials, blocking the electron transfer between the two nanofibers,” Bunes explained.

That kind of interaction would then signal the detector that the alkane vapor is present, the researchers said.

The discovery was published online in the journal ACS Sensors.

Vaporsens, a University of Utah spin-off company, has designed a prototype of the handheld detector with an array of 16 sensor materials that will be able to identify a broad range of chemicals including explosives.

This new composite material will be incorporated into the sensor array to include the detection of alkanes.

Vaporsens plans to introduce the device on the market in about a year and a half, Zang, who is also the company’s chief science officer, said. (IANS)

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The Best Oils To Use For Different Skin Types During Summers

Supriya Malik, beauty expert and founder at Indulgeo Essentials and Dilip Kundlia, founder and beauty expert, Oshea Herbals have logged in a few tips to deal with different skin types

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we often tend to avoid venturing out under the scorching sun and prefer staying in an air conditioned environment
During summers the skin gets very dull and dry, posing a need for reinstatement of moisture content in the skin via some essential facial oils. Pixabay

Summer heat calls for giving up on those heavy and greasy products and switching to safe, healthy and natural products which can easily seep in through the pores of the face. So make sure you are choosing your beauty rituals wisely.

Supriya Malik, beauty expert and founder at Indulgeo Essentials and Dilip Kundlia, founder and beauty expert, Oshea Herbals have logged in a few tips to deal with different skin types, which are surely unavoidable:

* Dry Skin: During summers, we often tend to avoid venturing out under the scorching sun and prefer staying in an air conditioned environment. The skin gets very dull and dry, posing a need for reinstatement of moisture content in the skin via some essential facial oils. These oils safeguard the trans epidermal water loss by creating a natural protective barrier on the skin.

Organic oils for dry skin: Almond oil, Lavender oil, Avocado oil, Argan oil, Flaxseed oil, Rosehip oil, Lemongrass oil.

Hot and humid weather, leads to an increase in the production of oil from the Sebaceous Glands
It might be surprising that facial oils are inevitable for oily skin too as our skin might also be thirsty for its desired nourishment. Pixabay

* Oily Skin: Sweating is an indispensable part during summers, which results in oily skin. Hot and humid weather, leads to an increase in the production of oil from the Sebaceous Glands. This in turn, increases the greasiness on the skin. It might be surprising that facial oils are inevitable for oily skin, too as our skin might also be thirsty for its desired nourishment. These nutrients are sucked easily by the dermis, thereby making the skin healthier.

Organic oils for oily skin: Primrose Oil, Jojoba Oil, Grape seed Oil Geranium oil, Rosehip Oil, Neem oil, Patchouli oil.

Read More: CBD as a Beauty Product [Say What!] 

* Combination Skin: Summers are taxing for those who have an oily T-zone, along with dry patches on the rest of the face. People having combination skin, must use products which maintain a right balance, so that the skin is neither buttery nor brittle. Thus, such people should go in for lighter based oils with anti-bacterial properties that will battle the oily areas and shield the drier ones.

Organic oils for combination skin: Olive oil, Ylang Ylang oil, Rosemary oil, Raspberry seed oil, Carrot seed oil, Grape seed oil, Jojoba oil. (Bollywood Country)

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