Chronic wounds such as diabetic foot ulcers can be very difficult to treat, partially because of antibiotic-resistant “biofilms” that form over the affected tissue. A new type of microneedle patch, however, has been shown to deliver medication through such films … Bacterial bioflms are made up of colonies of bacteria that stick together by building up a slimy polymer matrix. Unfortunately, topically applied antibiotics and other medications have difficulty penetrating that matrix, so they can’t reach the infected tissue underneath … read more