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DUKAS_191493010_FER
Spiked medical surface coating for killing bacteria
Ferrari Press Agency
Nanotips 1
Ref 17349
28/11/2025
See Ferrari text
Picture MUST credit: Dr. Zhejian Cao / Chalmers University
A way of killing harmful bacteria without using antibiotics they can form a resistance to has been developed.
It uses tiny metal structures that kill the microbes by poking holes in them.
It’s a coating for medical devices using a completely new application of this year's Nobel Prize-winning material called metal-organic frameworks.
These materials can physically impale, puncture and kill bacteria before they have time to attach to the surface through tiny sharp points in the material known as nanotips.
This results in the death of the microbe, without promoting the development of antibiotic-resistant bacteria.
A team at Sweden's Chalmers University led by Dr. Zhejian Cao said the most important element was the spacing between the nanotips.
If it is too large, bacteria can slip through and attach to the underlying.
If the distance is too small, the mechanical stress exerted by the nanotips on the bacterial cells is reduced so that the bacteria survive.
They created a microscopic coating made up of two metal-organic frameworks. layers grown on top of the other.
By precisely controlling the crystalline growth of the material, the researchers were able to tweak the spacing of the nanotips that protruded from the layers.
The coating is constructed in a way that allows it to be applied to a variety of surfaces and integrated into other materials.
OPS: A scanning electron microscopy image of the MOF-on-MOF surface with sharp nanotips for killing the bacteria.
Picture supplied by Ferrari
(FOTO: DUKAS/FERRARI PRESS) -
DUKAS_191493009_FER
Spiked medical surface coating for killing bacteria
Ferrari Press Agency
Nanotips 1
Ref 17349
28/11/2025
See Ferrari text
Picture MUST credit: Dr. Zhejian Cao / Chalmers University
A way of killing harmful bacteria without using antibiotics they can form a resistance to has been developed.
It uses tiny metal structures that kill the microbes by poking holes in them.
It’s a coating for medical devices using a completely new application of this year's Nobel Prize-winning material called metal-organic frameworks.
These materials can physically impale, puncture and kill bacteria before they have time to attach to the surface through tiny sharp points in the material known as nanotips.
This results in the death of the microbe, without promoting the development of antibiotic-resistant bacteria.
A team at Sweden's Chalmers University led by Dr. Zhejian Cao said the most important element was the spacing between the nanotips.
If it is too large, bacteria can slip through and attach to the underlying.
If the distance is too small, the mechanical stress exerted by the nanotips on the bacterial cells is reduced so that the bacteria survive.
They created a microscopic coating made up of two metal-organic frameworks. layers grown on top of the other.
By precisely controlling the crystalline growth of the material, the researchers were able to tweak the spacing of the nanotips that protruded from the layers.
The coating is constructed in a way that allows it to be applied to a variety of surfaces and integrated into other materials.
OPS: A scanning electron microscopy image of the MOF-on-MOF surface with sharp nanotips killing the bacteria.
Picture supplied by Ferrari
(FOTO: DUKAS/FERRARI PRESS) -
DUK10089809_050
PEOPLE - Formel 1: GP von Bahrain
Mandatory Credit: Photo by Michael Memmler/Sutton Images/REX/Shutterstock (9570504b)
Max Verstappen (NED) Red Bull Racing RB14 with puncture on lap one during the Bahrain GP at Bahrain International Circuit on April 08, 2018 in Bahrain International Circuit, Bahrain.
2018 Bahrain GP - 08 Apr 2018
(c) Dukas -
DUKAS_27117298_REX
Video shows 8-year-old girl bitten while feeding a dolphin at SeaWorld, Orlando, Florida, America - Dec 2012
Mandatory Credit: Photo by Gavin Rodgers / Rex Features (2013970i)
Video grab showing the puncture wounds to Jillian Thomas' hand
Video shows 8-year-old girl bitten while feeding a dolphin at SeaWorld, Orlando, Florida, America - Dec 2012
A father has posted a video online of his daughter being bitten by a dolphin as a warning to others. Jamie Thomas caught on camera the moment his 8-year-old daughter Jillian was bitten by the porpoise at SeaWorld in Orlando, Florida. Jillian was feeding the dolphin at the time of the incident and was holding a paper carton filled with fish. According to Jamie the dolphin lunged out of the water and grabbed the carton, biting Jillian (FOTO:DUKAS/REX)
DUKAS/REX -
DUKAS_27117297_REX
Video shows 8-year-old girl bitten while feeding a dolphin at SeaWorld, Orlando, Florida, America - Dec 2012
Mandatory Credit: Photo by Gavin Rodgers / Rex Features (2013970h)
Video grab showing the puncture wounds to Jillian Thomas' hand
Video shows 8-year-old girl bitten while feeding a dolphin at SeaWorld, Orlando, Florida, America - Dec 2012
A father has posted a video online of his daughter being bitten by a dolphin as a warning to others. Jamie Thomas caught on camera the moment his 8-year-old daughter Jillian was bitten by the porpoise at SeaWorld in Orlando, Florida. Jillian was feeding the dolphin at the time of the incident and was holding a paper carton filled with fish. According to Jamie the dolphin lunged out of the water and grabbed the carton, biting Jillian (FOTO:DUKAS/REX)
DUKAS/REX