Review highlights MXenes as conductive scaffolds for next-generation cardiac patches

Heart attack survivors often encounter a persistent engineering challenge: the scarred myocardial region fails to conduct electrical signals or contract in harmony with healthy tissue. A recent review in the Annals of Biomedical Engineering suggests that MXenes, a family of two-dimensional nanomaterials, could be instrumental in bridging this gap through cardiac patches. The review, authored by a team led by Hamed Ghanbari and Mina Habibizadeh, explores how MXene-based platforms might restore electrical conduction in infarcted areas while providing the mechanical support that traditional biomaterials often lack.

MXenes are two-dimensional transition metal carbides and nitrides, known for their exceptional electrical conductivity, mechanical flexibility, and adaptable surface chemistry. The review highlights that these properties enable electromechanical integration with myocardial tissue, allowing a patch to electrically couple with beating cardiomyocytes rather than merely serving as a passive scaffold. The authors examine how MXene-mediated platforms enhance cardiomyocyte alignment, maturation, and synchronized contraction when conductive properties are combined with integrated topographical cues that guide cell organization.

Topography plays a crucial role because heart muscle cells align and mature in response to the structural features of their environment. The review underscores that MXene-based patches can simultaneously provide physical guidance and electrical coupling, addressing two limitations of existing cardiac biomaterials in one platform. Compared to other conductive biomaterials, MXenes exhibit unique properties that may facilitate conduction restoration across damaged tissue while also reinforcing the patch mechanically.

Beyond conductivity, the review emphasizes the multifunctional capabilities of MXenes, extending their potential role in regeneration. The materials show antioxidant, anti-inflammatory, and antibacterial effects, which the authors propose could create a regenerative microenvironment around an implanted patch. These properties suggest that MXenes could actively shape the biochemical conditions necessary for successful integration of transplanted cells and host tissue post-infarction.

The review does not present MXenes as a complete solution. The authors identify significant translational challenges that still separate laboratory demonstrations from clinically deployable patches and outline future directions for developing intelligent cardiac patches that integrate MXene technology with personalized medicine approaches. These insights are offered as a roadmap, positioning MXenes as promising biomaterials that warrant further investigation to bridge critical gaps in cardiac tissue engineering and provide solutions for myocardial regeneration.