Scientists Develop Virus-Destroying Plastic Film

Every day, people touch many surfaces, like kitchen counters, handrails, desks, and phone screens. These surfaces can spread viruses and germs.

Typically, infection spreads when someone touches a contaminated surface and then touches their eyes, nose, or mouth. While chemical cleaners can disinfect, they may harm the environment and contribute to antimicrobial resistance, where germs stop responding to treatments.

A new study in “Advanced Science” introduces a plastic surface with nanoscale features, tiny structures a billionth of a metre in size. These mimic insect wings, which naturally kill bacteria by rupturing them. This surface can physically break apart viruses, like human parainfluenza virus type 3 (hPIV-3).

This innovation offers an affordable solution for making surfaces like phone screens and hospital equipment less likely to spread disease. Traditional methods involve cleaning, which requires chemicals and can quickly recontaminate surfaces.

Scientists previously explored antiviral surface coatings using materials like graphene. While effective, they can pose health risks and harm the environment as their potency decreases.

The initial aim was to design a smooth surface to repel germs, but research found bacteria adhered more to smooth surfaces. Inspired by insect wings, a surface covered in tiny pillars was developed to kill bacteria by stretching their membranes.

The researchers created a flexible, lightweight, and cost-effective material covered with nanopillars, which physically tear viruses apart. Lab tests showed up to 94% of hPIV-3 particles were destroyed within an hour.

This material, adaptable for various industries, could replace traditional methods. However, like all materials, it may degrade over time. Further research aims to improve germ-free surfaces and combat viruses without relying on chemicals.

How much do you know?

What is the main concern with traditional chemical cleaners?

They are expensive

They may harm the environment

They are ineffective

They are difficult to use

What does the new plastic surface introduced in 'Advanced Science' mimic?

Human skin

Animal fur

Insect wings

Plant leaves

What type of virus was specifically mentioned as being affected by the new surface?

Influenza virus

hPIV-3

COVID-19

Ebola virus

How effective was the new material in destroying hPIV-3 particles in lab tests?

50%

70%

94%

100%

What inspired the design of the new surface with nanopillars?

Human hands

Insect wings

The structure of viruses

Chemical compounds

What problem was found with smooth surfaces in relation to germs?

They are easier to clean

Bacteria adhered more to them

They do not attract dirt

They are more expensive

The new study suggests that traditionally smooth surfaces repel bacteria effectively.

True False

Chemical cleaners do not contribute to antimicrobial resistance.

True False

Nanoscale features on the new plastic surface can physically break apart viruses.

True False

The material developed was not designed to be cost-effective.

True False

The initial aim of the researchers was to create a rough surface to kill bacteria.

True False

Further research is being conducted to improve germ-free surfaces without chemicals.

True False

Typically, infection spreads when someone touches a contaminated surface and then touches their eyes, nose, or .

The new surface can physically break apart viruses, like human parainfluenza virus type (hPIV-3).

Lab tests showed up to of hPIV-3 particles were destroyed within an hour.

The material is covered with tiny pillars that bacteria by stretching their membranes.

Scientists explored antiviral surface coatings using materials like and found they can pose health risks.

The researchers aimed to create a surface that would repel germs but discovered it was ineffective.

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