2023-09-29 13:23:09
How sea mussels helped create a patch that sticks to the heart
Korean researchers have unveiled an innovative epicardial patch for precise monitoring of heart activity.
Scientists from Sungkyunkwan University and other institutes in South Korea developed a new type of epicardial patch that might revolutionize the diagnosis and treatment of heart diseases such as arrhythmia and myocardial infarction.
Traditional epicardial patches often require surgical suturing to the heart, which is difficult and risky. However, the new invention has the ability to stretch and stick, eliminating the need for seams.
Professor Donghee Son, one of the lead researchers, shared: “Conventional attachment of epicardial patches is a complex and time-consuming task. Long-term use results in deterioration of strength and an unwanted gap between the patch and the heart tissue, making diagnosis and treatment difficult.”
The new patch consists of three materials: a liquid conductive composition, a mesh backing material and an ionic adhesive. This combination eliminates the need for sutures, making the procedure safer and more comfortable for healthcare professionals.
The main innovation of the patch is the use of jelly-like materials (hydrogels) with ionic conductivity, inspired by the adhesion mechanism of sea mussels. These hydrogels allow the patch to instantly attach to the heart without the need for sutures.
Thanks to liquid metal electrodes, the new patch demonstrates high reliability and stability in monitoring cardiac signals. “We conducted experiments on recording heart signals in animals for four weeks, which was a significant breakthrough,” Song added.
In addition to diagnostics, the patch is also capable of interfering with abnormal signals, regulating the heart’s rhythm and promoting its normal functioning. Due to its softness and adhesiveness, it does not cause tissue damage or inflammation.
Professor Song concluded: “Our results highlight the potential of this technology for diagnosing and treating heart disease. Our new development might open up new opportunities for personalized medicine, allowing treatment to be tailored to each patient’s individual needs.”
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