The coronavirus’s shape has an impact on how it spreads

Published

4 years ago

September 1, 2022

India

The coronavirus’s shape has an impact on how it spreads

Since the start of the COVID-19 epidemic, images of the coronavirus SARS-CoV-2 have been permanently implanted in our minds. However, the virus is not exactly shaped like a sphere with spikes as we typically imagine it. Images taken under a microscope of infected tissues reveal coronavirus particles to be ellipsoidal in shape and to have a variety of compressed and elongated morphologies.

Researchers from Queen’s University in Canada and the Okinawa Institute of Science and Technology (OIST) in Japan are leading a global study team that has examined how different elliptical shapes affect how viral particles rotate within fluids, affecting how easy the virus can spread. Recent publication of the study in the journal Physics of Fluids.

According to Professor Eliot Fried, head of OIST’s Mechanics and Materials Unit, when coronavirus particles are breathed in, they move around inside the nose and lungs. “We want to know how mobile they are in these surroundings,” the researcher said.

The speed at which particles rotate as they move through the fluid is controlled by rotational diffusivity, a particular type of movement that the scientists modelled (in the case of the coronavirus, droplets of saliva). Fluid drag is reduced and rotation speed is increased in smoother, more hydrodynamic particles. The ability of coronavirus particles to bind to and infect cells is influenced by their rotating speed.

In their research, the scientists modelled both prolate and oblate ellipsoids of revolution. Prolate shapes have one longer axis and oblate shapes have one shorter axis, which sets them apart from spheres (which have three axes of equal length). Prolate shapes grow into rod-like shapes when followed to their logical conclusion, whilst oblate shapes contract into coin-like shapes. On the other hand, coronavirus particles differ in a more subtle way.

The scientists improved the ellipsoids’ surface by coating them with spike proteins to create the most accurate model yet. The inclusion of triangular-shaped spike proteins slows the rotation of coronavirus particles, potentially increasing the virus’ ability to infect cells, according to earlier research from Queen’s University and OIST.

Each spike protein was represented by a single sphere on the surface of the ellipsoids in the scientists’ simplified model of the spike proteins.

At order to determine the arrangement of the spikes on the surface of each ellipsoidal shape, Dr. Vikash Chaurasia, a postdoctoral researcher in the OIST Mechanics and Materials Unit, explained, “We then assumed that they all have the same charge. Similar charge spikes reject one another and seek out as much space as possible. They consequently surround the particle evenly, minimising its repulsion.

The researchers’ model revealed that a particle rotates more slowly the further it deviates from a spherical shape. This would suggest that the particles have improved alignment and cell-attachment abilities.

The model is still crude, the researchers acknowledge, but it advances our knowledge of the coronavirus’s transport characteristics and may help identify a factor that is crucial to the success of its infective process.

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Celebrity News

Amitabh Bachchan: The Heartbreaking Anxiety of Bollywood’s Greatest Icon

Published

7 days ago

June 19, 2026

Digital Post

Amitabh Bachchan: Candid Self-Doubt Confession

Even after five decades of cinematic dominance, Amitabh Bachchan still faces the quiet terrors of the midnight hour. The man who epitomised alpha-masculinity for generations of moviegoers recently made an unexpected confession that shocked his millions of admirers. He continues to have restless nights, locked in a vicious circle of intense self-doubt and crushing work stress.

This revelation is a huge wake-up call for anyone who thinks of him as an invincible acting colossus. It demonstrates that the heavy weight of perfectionism never fully fades, no matter how much celebrity you achieve.

The Haunting Midnight Echoes of Perfectionism

Imagine being a living legend and lying awake at 3 a.m. wondering if your previous performance was a complete failure. Bachchan admitted that he always repeats his sequences in his memory, haunted by the terrible feeling that they “could have been done better.”

This tremendous emotional sensitivity reveals a side of the megastar that the public has rarely seen. Onscreen, we witness the towering demeanour, booming baritone voice, and perfect delivery. But, behind closed doors, he suffers from the same paralysing fear that ordinary people face on a daily basis in the workplace.

Why the Deepest Passion Breeds Internal Chaos

You might ask why a man who has won every major film award is so concerned about delivering a single sentence. True genius is rarely characterised by serenity of mind. For Bachchan, acting is more than a job; it is a sacred, consuming fire that demands flawless excellence every time.

When you care so deeply about your craft, every creative endeavour feels like a high-stakes bet on your entire legacy. This tremendous artistic drive is a two-edged blade that produces amazing art while completely destroying your mental serenity.

The Heavy Price of an Enduring Legacy

Living under the microscope of the public eye for fifty years has a catastrophic psychological impact. Every move Amitabh Bachchan makes is immediately analysed, criticised, or worshipped by countless millions of people.

That amount of tremendous expectation establishes a distinct, invisible prison of performance anxiety. The dreadful anxiety of disappointing his big audience keeps his thoughts racing long after the cameras stop rolling. It turns out that the view from the very top of the mountain is extremely lonely and filled with perpetual emotional danger.

Normalizing the Silent Struggle with Mental Health

Bachchan has done an incredible amount to raise worldwide mental health awareness by publicly exposing his personal struggles with work stress. He has effectively removed the heavy veil of shame that typically surrounds the topic of anxiety, particularly among older generations.

If the ultimate “Angry Young Man” of Indian cinema can freely acknowledge to feeling inadequate, then everyone else has the right to be human as well. It is a welcome reminder that being overburdened by your commitments does not imply weakness.

The Relentless Creative Hunger That Never Sleeps

Finally, this severe self-doubt is the secret fuel that drives Amitabh Bachchan to labour continuously at an age when most people have retired. It’s a curious paradox: his severe inner agony serves as the driving reason behind his legendary longevity.

He refuses to rest on his past accomplishments or rely on his immense celebrity to get by. Every sleepless night reveals a man with the raw, eager heart of a novice. He remains gloriously, devastatingly uneasy about his work, which is precisely what makes him an everlasting force in film.

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