Gold Nanorod-Based Engineered Cardiac Patch for Suture-Free Engraftment by Near IR

Maayan Malki, Sharon Fleischer, Assaf Shapira, Tal Dvir

Research output: Contribution to journalArticlepeer-review


Although cardiac patches hold a promise for repairing the infarcted heart, their integration with the myocardium by sutures may cause further damage to the diseased organ. To address this issue, we developed facile and safe, suture-free technology for the attachment of engineered tissues to organs. Here, nanocomposite scaffolds comprised of albumin electrospun fibers and gold nanorods (AuNRs) were developed. Cardiac cells were seeded within the scaffolds and assembled into a functioning patch. The engineered tissue was then positioned on the myocardium and irradiated with a near IR laser (808 nm). The AuNRs were able to absorb the light and convert it to thermal energy, which locally changed the molecular structure of the fibrous scaffold, and strongly, but safely, attached it to the wall of the heart. Such hybrid biomaterials can be used in the future to integrate any engineered tissue with any defected organs, while minimizing the risk of additional injury for the patient, caused by the conventional stitching methods.

Original languageEnglish
Pages (from-to)4069-4073
Number of pages5
JournalNano Letters
Issue number7
StatePublished - 11 Jul 2018


  • Cardiac tissue engineering
  • engraftment
  • gold nanorods
  • near IR
  • tissue integration


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