Biophysical effects of ultrasound therapy for cartilage regeneration and microbubble mediated shock waves and drug release control for cancer treatment

TL;DRAbstract

<p>Articular cartilage is a complex soft tissue covering the end of moving bones in joints which provide pressure load distribution over the joint surface and smooth lubrication with little friction for establishing movement. Articular cartilage has an intrinsically limited capacity for self-repair when injured due to the lack of nerve and blood supply. Considered that injured cartilage is left untreated, it is likely to undergo progressive cartilage degeneration without pain which may lead to posttraumatic osteoarthritis. Therefore functional and physiologic restoration of injured cartilage back to a normal condition has long been in demand, yet current available repairing methods in clinics have met with limited success. Mechanically applied loads to articular cartilage is necessary for chondrocytes, cartilage cells, since they are responsible for cartilage matrix turnover by synthesizing extracellular matrix (ECM) molecules in response to bio- chemical and mechanical changes i

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