After heart attack occurred, the inflammatory cells known as monocytes run to the spoiled tissue resulting in heart in heart swelling, because it reduces heart ability to pump the blood-a fatal situation. To control this dangerous situation, scientists have discovered injectable microparticles.
These 500-nanometer-wide particles have been made from biocompatible and biodegradable polymer called poly (lactic-co-glycolic) acid by joint effort of Illinois’ and University of Sydney in Australia. The material used in it, is already approved by FDA. Research is on the way for usage of this material in treatment of Diabetes and Breast Cancer.
When these particles are injected into the bloodstream within 24 hours a heart attack, the negatively charged microparticles attract the positively-charged monocytes because they are on their way to the heart. When a monocyte bonds a particle, there appear a signal within the cell to tell that it’s dying.