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London: Researchers at Linkoping University in Sweden have developed a ‘power paper’ that can store energy. The material consists of nanocellulose and a conductive polymer.

Unlike the batteries and capacitors currently on the market, power paper is produced from simple materials like renewable cellulose and an easily available polymer.


It is light in weight, requires no dangerous chemicals or heavy metals and it is waterproof.

One sheet of this new material, 15 cm in diameter and a few tenths of a millimetre thick, can store as much as 1F, which is similar to the supercapacitors currently on the market.

The material can be recharged hundreds of times and each charge only takes a few seconds.

“Thin films that function as capacitors have existed for some time. What we have done is to produce the material in three dimensions. We can produce thick sheets,” said study co-author professor Xavier Crispin.

The material, power paper, looks and feels like a slightly plastic paper.

The structural foundation of the material is nanocellulose, which is cellulose fibres which, using high-pressure water, are broken down into fibres as thin as 20 nm in diametre.

With the cellulose fibres in a solution of water, an electrically charged polymer, also in a water solution, is added. The polymer then forms a thin coating around the fibres.

“The covered fibres are in tangles, where the liquid in the spaces between them functions as an electrolyte,” explained researcher Jesper Edberg.

The new cellulose-polymer material has set a new world record in simultaneous conductivity for ions and electrons, which explains its exceptional capacity for energy storage.

The study was published in the journal Advanced Science.(ians)

(picture credit:cdn.ndtv.com)


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The aim of the book is to teach children that families can exist in different forms, and show them how to accept the diversity in family backgrounds.

By Siddhi Jain

Delhi-based author Pritisha Borthakur is set to release her new book, 'Puhor and Niyor's Mural of Family Stories'. The 1,404-word children's book was put together to address a new kind of societal debacle in the family system. The author says the aim is to teach children that families can exist in different forms, and show them how to accept the diversity in family backgrounds.

The author who named the book after her twin sons -- Puhor and Niyor -- is a parent who has seen and heard the tales of ridicule and discrimination suffered by many in India and beyond. She says the book is an artistic illustration for kids that details how different families can live and coexist. Whether it's children with two dads or two moms, children with a single dad or single mom, and even multiracial family units, Borthakur's book teaches love, understanding, and compassion towards unconventional families.

Beyond race, gender, color, and ethnicity which have formed the bases for discrimination since the beginning of time, this book aims to bring to light a largely ignored issue. For so long, single parents have been treated like a taboo without any attempt to understand their situations; no one really cares how or why one's marriage ended but just wants to treat single parents as villains simply for choosing happiness and loving their children.

Homosexual parents, a relatively new family system, is another form that has suffered hate and discrimination for many years. Pritisha emphasizes the need to understand that diversity in people and family is what makes the world beautiful and colourful. 'Puhor and Niyor's Mural of Family Stories' is a firm but compassionate statement against all forms of discrimination on the bases of sexual identity, gender, race, and even differences in background

four children standing on dirt during daytime 'Puhor and Niyor's Mural of Family Stories' is a firm but compassionate statement against all forms of discrimination on the bases of sexual identity, gender, race and even differences in background. | Photo by Ben Wicks on Unsplash


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Clean and maintained hands boost confidence in daily life activities.

If you feel that clean and well-groomed hands are just an essential prerequisite for women, you might like to think twice. Men should equally pay attention to their hands because our hand houses 1,500 bacteria living on each square centimeter of its skin. You can easily assume what havoc it can create in our body because in India we have the culture of eating with our hands and spaces beneath nails can become breeding heaven for germs. Moreover, clean and maintained hands boost confidence in their daily life activities. Therefore, it's important to keep your hands clean irrespective of your gender by washing or sanitizing at regular intervals. And, to keep them groomed, you don't have to visit a salon.

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