Wounds that won’t heal can be devastating

diabetic foot ulcer

Carol Emanuele beat cancer. But for the last two years, the Philadelphia woman has been fighting her toughest battle yet. She has an open wound on the bottom of her foot that leaves her unable to walk and prone to deadly infection.

In an effort to treat her diabetic wound, doctors at a clinic in Northeast Philadelphia have prescribed a dizzying array of treatments. Freeze-dried placenta. Penis foreskin cells. High doses of pressurized oxygen. And those are just a few of the treatment options patients face.

“I do everything, but nothing seems to work,” said Emanuele, 59, who survived stage 4 melanoma in her 30s. “I beat cancer, but this is worse.” (more…)

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Peptide nanofibers keep infections at bay

Researchers have developed a new infection-blocking material made of peptide-containing nanofibers that works against antibiotic-resistant bacteria and could one day be incorporated into wound dressings (ACS Infect. Dis. 2017, DOI: 10.1021/acsinfec​dis.6b00173).

The approach targets bacterial quorum sensing—a mode of chemical communication used by bacteria to detect other bacteria. When they sense that enough of their kind are present, they can mount an infectious attack.

Read more at Chemical and Engineering News

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