Disposable Helmet Retains Cough Droplets, Minimizes Transmission to Dentists, Otolaryngologists

Dentists and otolaryngologists are at particular risk of infection of COVID-19, since they need direct access to the mouth, nose, and throat of patients. The current solutions are expensive, not highly effective, and not very accessible. In Physics of Fluids, researchers discuss their design of an open-faced helmet for patient use that is connected to a medical-grade air filtration pump from the top that creates a reverse flow of air to prevent cough droplets from exiting the helmet.

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Scientists develop hydrophobic coating to prevent infections

Published in ACS Applied Materials and Interfaces, the study examined how an innovative coating UGA scientists developed can prevent liquids like water and blood from sticking onto surfaces. The researchers also found that the liquid-repellant coating can kill bacteria and halt blood clot formation on an object’s surface.

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Interactions Within Larger Social Groups Can Cause Tipping Points in Contagion Flow

Contagion processes, such as opinion formation or disease spread, can reach a tipping point, where the contagion either rapidly spreads or dies out. When modeling these processes, it is difficult to capture this complex transition. In the journal Chaos, researchers studied the parameters of these transitions by including three-person group interactions in a contagion model called the susceptible-infected-susceptible model. In this model, an infected person who recovers from an infection can be reinfected.

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HIV Up Close: Unprecedented View of Virus Reveals Essential Steps for Causing AIDS

Accomplishing a feat that had been a pipe dream for decades, scientists at University of Utah Health and University of Virginia have recreated in a test tube the first steps of infection by HIV (human immunodeficiency virus), the virus that causes AIDS (acquired immunodeficiency syndrome). Doing so has provided up-close access to the virus—which is otherwise obstructed from view deep within the cell—and enabled identification of essential components that HIV needs to replicate within its human host. The research publishes in the journal, Cell.

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Dermatologists warn consumers about the dangers of buying cosmetic injectables — such as fillers — online

A new article published online in the Journal of the American Academy of Dermatology reveals just how common these illicit products are on popular e-commerce sites, increasing the public’s risk for severe and potentially long-term complications, including blindness, disfiguration, and stroke.

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Ocean Algae Get “Coup de Grace” from Viruses

Scientists have long believed that ocean viruses always quickly kill algae, but Rutgers-led research shows they live in harmony with algae and viruses provide a “coup de grace” only when blooms of algae are already stressed and dying. The study, published in the journal Nature Communications, will likely change how scientists view viral infections of algae, also known as phytoplankton – especially the impact of viruses on ecosystem processes like algal bloom formation (and decline) and the cycling of carbon and other chemicals on Earth.

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Masks, PPE Materials Should Be Hydrophilic

Since the COVID-19 virus spreads through respiratory droplets, researchers in India set out to explore how droplets deposited on face masks or frequently touched surfaces dry. Droplets can be expelled via the mouth or nose and studies have shown a substantially reduced chance of infection once they dry. In Physics of Fluids, the researchers publish their findings that surface wetting properties to reduce the drying time of droplets could help lessen the risk of infection from coronaviruses.

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Big Data Analytics Enables Scientists to Model COVID-19 Spread

Researchers will use big data analytics techniques to develop computational models to predict the spread of COVID-19. They will utilize forward simulation from a given patient and the propagation of the infection into the community; and backward simulation tracing a number of verified infections to a possible patient “zero.” The project also will provide quick and automatic contact tracing and leverages the researchers’ prior experience in modeling Ebola spread.

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Supercharged bandages to revolutionise chronic wound treatment

World-first plasma-coated bandages with the power to attack infection and inflammation could revolutionise the treatment of chronic wounds such as pressure, diabetic or vascular ulcers that won’t heal on their own.

Developed by the University of South Australia, the novel coating comprises a special antioxidant which can be applied to any wound dressing to simultaneously reduce wound inflammation a¬¬nd break up infection to aid in wound repair.

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