06Jun

Before the discovery of antibiotics, tuberculosis was the second most common cause of death in the US. Today, thanks to antibiotics, the few who contract the disease rarely die.

But as TB and other once-easily cured diseases grow increasingly antibiotic resistant, the very real fear is that medicine may run out of treatment options, leading to epidemics dwarfing COVID-19.

To head-off that kind of future, two dozen pharmaceutical firms have invested nearly $1 billion creating the AMR Action Fund with the goal of developing 2-4 new antibiotics by 2030.

AMR – antimicrobial resistance – arises when infectious disease pathogens become resistant to existing medicines. Tuberculosis is one of them, as are several others including the much publicized MRSA.

“AMR has the potential to render diseases that are relatively easy to treat today virtually incurable,” said Dr. Paul Stoffels, vice chairman of the executive committee and chief scientific officer, Johnson & Johnson.

“Left unchecked, AMR could significantly eclipse the global health challenge that the world is facing currently with COVID-19,” he said in a statement announcing the launch of the AMR Action Fund.

The initial funding pledges from the bioscience and drug firms – including $100 million pledged each by Johnson & Johnson and Pfizer – will be supplemented by non-industry partners, the Fund says on its website.

Explaining that “drug resistant bacteria are developing faster than new antibiotics can reach the market,” the Fund says there are few antibiotics in clinical development to meet current and anticipated needs. The reason is that the market for antibiotics “doesn’t support the level of investment needed to maintain a robust antibiotic pipeline.”

The website goes on to explain that smaller biotech firms have trouble financing trials of the antibiotics they do develop. Some that have developed new antibiotics “have declared bankruptcy or exited this space,” cautions the Fund, “Due to the lack of commercial sustainability, resulting in the loss of valuable expertise and resources.”

To achieve its goal of bringing to market the new antibiotics in a decade, the Fund said it “will invest in smaller biotech companies focused on developing new antibiotics that address the highest priority public health needs.”

Specifically, the AMR Action Fund will:

  1. “Invest based on the WHO/CDC priority lists of pathogens, with the goal to address major unmet needs and maximize public health impact.
  2. “Prioritize novel antibacterial treatments, as recognized by leading public health agencies, with significant and differentiated clinical utility and that reduces patient mortality.
  3. “Invest across all stages of clinical development.”

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Jun 6, 2023

Wearables That Print On Your Body

Biomedical sensors long ago moved out of the hospital and into an assortment of recreational exercise devices monitoring heart rate, blood pressure, respiration and other vital signs.

Body sensor image - blog.jpg

Whether medical or recreational activity trackers, these sensors require some sort of carrier — think wristbands or EKG electrode patches — which limits their effectiveness and can make them uncomfortable when worn for extended periods. They can also be hard to place and often have poor signal quality.

Now, right out of science fiction, engineers at Penn State, China’s Harbin Institute of Technology and other Chinese institutions have come up with a way to print the sensors and their electronics directly on human skin.

Up to now, the only way to bond nanoparticles together to create flexible electronics was through a process requiring temperatures hotter than the hottest home oven. The new process uses common materials that allow the particles to bond at room temperature.

The resulting sensor is flexible, smooth and durable enough to remain on the skin until peeled off with hot water. The devices can then be recycled and reused.

Lead researcher, Penn State Engineering Professor Huanyu Cheng, explained that the bonding process uses polyvinyl alcohol paste — the main ingredient in peelable face masks — and calcium carbonate — the key ingredient of eggshells.

The sensors, he said, “Are capable of precisely and continuously capturing temperature, humidity, blood oxygen levels and heart performance signals.”

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