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The technique called FRESH can print pieces of the heart out of collagen and cells into truly functional parts like a heart valve or a small beating ventricle, according to the study. Wikimedia Commons

Researchers from Carnegie Mellon University used soft and living materials to create a biological scaffold, making a step closer to being able to 3D print a full-sized, adult human heart. The study published on Thursday in the journal Science reported the first-of-its-kind technique that could print tissue scaffolds out of a major structural protein in the human body, the Xinhua news agency reported on Friday.

Human organs like the heart are built from specialised cells that are held together by a scaffold called the extracellular matrix (ECM). It has not been possible until now to rebuild the complex ECM using traditional methods.


The technique called FRESH can print pieces of the heart out of collagen and cells into truly functional parts like a heart valve or a small beating ventricle, according to the study. The collagen is a desirable 3D-printing biomaterial since it makes up literally every single tissue in human body. But it starts out as a fluid and tends to deform during printing.


First-of-its-kind technique that could print tissue scaffolds out of a major structural protein in the human body. Pixabay

The FRESH technique allows collagen to be deposited layer-by-layer within a support bath of gel, so that the collagen could solidify in place before being removed from the gel. Then, the support gel would be melted away by heating from room temperature to body temperature without damaging the printed structure.

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The FRESH is a robust and adaptable tissue engineering platform since a wide range of other soft gels including fibrin, alginate, and hyaluronic acid can be used. Also, the researchers managed to accurately reproduce patient-specific anatomical structure.

Looking forward, it has potential applications in many aspects of regenerative medicine, from wound repair to organ bioengineering, according to the researchers. (IANS)


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Photo by Wikimedia Commons

Japan launched its new satellite, QZS-1R.

Japan has successfully launched a new navigation satellite into orbit that will replace its decade-old navigation satellite.

The satellite, QZS-1R, was launched onboard an H-2A rocket that lifted off from the Tanegashima Space Center at 10.19 p.m. on Monday night, Mitsubishi Heavy Industries said in a statement.

The company builds and operates H-2A rockets the Japan Aerospace Exploration Agency (JAXA).

QZS-1R is a replacement for Quasi-Zenith Satellite System 1 satellite first launched in 2010. “It was a really beautiful launch," the company said in a tweet after a successful lift-off.

"H-IIA F44 flight proceeded nominally. Approximately 28 minutes 6 seconds after launch, as planned, the payload separated from the launch vehicle," the statement said.

The official QZSS website lists four satellites in the constellation: QZS-1, QZS-2, QZS-3 and QZS-4, Space.com reported.

The QZSS constellation will eventually consist of a total of seven satellites that fly in an orbit passing through a near-zenith (or directly overhead) above Japan, and QZS-R1 is meant to share nearly the same transmission signals as recent GPS satellites, according to JAXA.

It is specially optimised for mountainous and urban regions in Japan, JAXA said.

Mitsubishi's H-2A 202 rocket launch system has been operational since 2003 and has sent satellites to locations such as Venus (Akatsuki) and Mars (Emirates Mars Mission).

The latest H2-A rocket launch is the first since November 29, 2020, when Japan launched an advanced relay satellite with laser communications tech into orbit, the report said. (IANS/JB)


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Photo by Mike Enerio on Unsplash

Fireworks light up the night sky

Everyone loves firecrackers, even the most environment-friendly advocates cannot hide their joy when they see these delightful lights colour the skies. India celebrates Diwali in the true spirit of her culture and heritage by spraying the navy-blue skies with sparkling hues of gold, silver, red, and green. Firecrackers are not just a tradition in this country, they are a legacy.

The original connotation one makes with fireworks in China. The elaborate Chinese celebrations with dragons and zapping firecrackers have left their mark in human memory, but the use of fireworks is not limited to heralding the Chinese New Year. All over the world, fireworks have come to symbolise the ultimate celebration. During Diwali in India, this spirit is re-ignited every year.

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A visitor looks at statues of the 'Royal treasures of Abomey kingdom' on display at the Musee du quai Branly in Paris on Sept. 10, 2021, part of 26 artworks set to be restituted to Benin later in the year.

PARIS — In a decision with potential ramifications across European museums, France is displaying 26 looted colonial-era artifacts for one last time before returning them home to Benin.

The wooden anthropomorphic statues, royal thrones and sacred altars were pilfered by the French army in the 19th century from Western Africa.

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