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Novel biodegradable magnesium-alloy tracheal stents for children with airway obstruction
Pediatric laryngotracheal stenosis (LTS), a narrowing of the airway in children, is a complex medical condition. While it can be something a child is born with or caused by injury, the condition can result in a life-threatening emergency if untreated.
Treatment, however, is challenging. Depending on the severity, doctors will use a combination of endoscopic techniques, surgical repair, tracheostomy, or deployment of stents to hold the airway open and enable breathing.
While stents are great at holding the airway open and simultaneously allowing the trachea to continue growing, they can move around, or cause damage when they re eventually removed. New research published in
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IMAGE: Researchers demonstrate for the first time the successful use of a completely biodegradable magnesium-alloy tracheal stent, pictured, that safely degrades over the course of eight weeks and does not require. view more
Credit: Materialise
Pediatric laryngotracheal stenosis (LTS), a narrowing of the airway in children, is a complex medical condition. While it can be something a child is born with or caused by injury, the condition can result in a life-threatening emergency if untreated.
Treatment, however, is challenging. Depending on the severity, doctors will use a combination of endoscopic techniques, surgical repair, tracheostomy, or deployment of stents to hold the airway open and enable breathing.
Muqing Yu
PITTSBURGH, PA It has long been a dream to invent new materials from the top down choosing which atoms go where to engineer properties of interest. A technique created by researchers out of the Department of Physics and Astronomy enables them to sketch patterns of electrons into a programmable quantum material lanthanum aluminate/strontium titanate or LAO/STO. Using this approach, they can create quantum devices and with feature sizes comparable to the spacing between electrons, and even sketch artificial lattices for electrons to traverse, with extremely high precision.
To develop this capability, the researchers repurposed an electron beam lithography instrument, which is ordinarily used to create nanostructures by exposing a resist that hardens into a mask, enabling layers of material to be subsequently added or removed. Instead of operating the instrument at its usual value of 20,000 volts, the researchers dialed it down to only a few hundred volts, where th
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Credit: Muqing Yu
PITTSBURGH It has long been a dream to invent new materials from the top down choosing which atoms go where to engineer properties of interest. A technique created by researchers out of the Department of Physics and Astronomy enables them to sketch patterns of electrons into a programmable quantum material lanthanum aluminate/strontium titanate or LAO/STO . Using this approach, they can create quantum devices and with feature sizes comparable to the spacing between electrons, and even sketch artificial lattices for electrons to traverse, with extremely high precision.
To develop this capability, the researchers repurposed an electron beam lithography instrument, which is ordinarily used to create nanostructures by exposing a resist that hardens into a mask, enabling layers of material to be subsequently added or removed. Instead of operating the instrument at its usual value of 20,000 Volts, the researchers dialed it down to only a few hundre