Bandages are great for covering wounds, but they would be much more useful if they could also detect infections.
“Single-walled carbon nanotubes within the bandage will be able to identify an infection in the wound by detecting concentrations of hydrogen peroxide,” said Roxbury.
Until now, the challenge with using nanotubes for this purpose has been immobilizing them in a biocompatible manner such that they stay sensitive to their surroundings, according to Roxbury.
“The microfibers that encapsulate the carbon nanotubes accomplish both of these tasks,” Roxbury said. “The nanotubes do not leach from the material, yet they stay sensitive to hydrogen peroxide within the wounds.”
The “smart bandage” will be monitored by a miniaturized wearable device, which will wirelessly (optically) detect the signal from the carbon nanotubes in the bandage. The signal can then be transmitted to a smartphone-type of device that then automatically alerts the patient or a health care provider.
“This device will solely be used for diagnostic purposes,” said Roxbury. “However, the hope is that the device will diagnose an infection at an early stage, necessitating fewer antibiotics and preventing drastic measures, such as limb amputation. We envision this being particularly useful in those with diabetes, where the management of chronic wounds is routine.”
Image Credit: Negar Rahmani
The highly transmissible delta variant of SARS-CoV-2, the coronavirus causing the disease COVID-19, is now present in 124 countries and will become the dominant strain globally in the coming months as it is outcompeting [...]
Scientists have backed proposals for Covid boosters in the autumn after blood tests on hundreds of people revealed that protective antibodies can wane substantially within weeks of second vaccine shots being given. Falls in [...]
Researchers in the United States have conducted a study showing that the coronavirus disease 2019 (COVID-19) vaccines developed by Pfizer-BioNTech and Moderna generate a coordinated adaptive immune response that is capable of eliciting recall [...]
CSIRO, Australia's national science agency, played an important role in evaluating heat-tolerant COVID-19 vaccine formulations developed by the Indian Institute of Science (IISc) and biotech start-up Mynvax—against all current SARS-CoV-2 variants of concern. Published [...]
Podcast – Nanovisaging 2040 How Synergies between Nanotechnology, Nanomedicine, and AI might Benefit Humanity
Frank Boehm (NanoApps Medical Inc. Founder) in discussion with Nana Kay in a Wealth Secrets podcast. EP 19. Nanovisaging 2040. From Nana Kay: Nanovisaging 2040: How Synergies between Nanotechnology, Nanomedicine, and AI might Benefit [...]
Canada, like several other countries, has been mixing and matching COVID-19 vaccines for weeks amid safety concerns over the AstraZeneca shot. On Monday, the chief scientist at the World Health Organization (WHO) cautioned against that approach, calling [...]
Scientists have harnessed CRISPR gene-editing technology to block the replication of the novel coronavirus in human cells — an approach that could one day serve as a new treatment for COVID-19. However, the study was performed [...]
A recent study by scientists from Japanese universities has shown that the shape of cell-derived nanoparticles, known as "extracellular vesicles" (EVs), in body fluids could be a biomarker for identifying types of cancer. In [...]
An important lesson for vaccine design Australian scientists researching how our immune system responds to COVID-19 have revealed that those infected by early variants in 2020 produced sustained antibodies, however, these antibodies are not [...]
1. How COVID-19 is affecting the globe Confirmed cases of COVID-19 have passed 185 million globally, according to Johns Hopkins University. The number of confirmed deaths stands at more than 4 million. More than 3.29 [...]
The World Health Organization (WHO) has added another COVID strain to its list of coronavirus variants to keep an eye on: the COVID-19 Lambda variant. This particular variant has now spread to more than two dozen [...]
In a recent study conducted at the Baylor College of Medicine, Houston, USA, scientists have identified six vaccine breakthrough cases caused by the delta variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). A [...]
A new Covid-19 strain that is much more dangerous than the Delta variant has been detected in more than 30 countries in the past four weeks, says the Health Ministry. "The Lambda strain was [...]
Weakened lungs and immune systems make people increasingly vulnerable, warn scientists. A rash of cases of a rare “black fungus” infection affecting thousands of critically ill Covid patients in India caused alarm last month. [...]
Using real-time deformability cytometry, researchers at the Max-Planck-Zentrum für Physik und Medizin in Erlangen were able to show for the first time: COVID-19 significantly changes the size and stiffness of red and white blood [...]